I am not able to check or uncheck a Gwt CheckBoxCell . It works fine in Chrome but it doesn't work at all in mozilla . What wrong i am doing ? Please Suggest . When i am selecting selectAllHeader not able to check/uncheck in mozilla though same works in chrome.
DataGridTableRowModel headerRow = dataGridTableRowList.get(0);
E12CommonUtils.printOnConsole("IN createTableComponent================="+ headerRow);
int width = 50;
final MultiSelectionModel<DataGridTableRowModel> multiSelectionModel = new MultiSelectionModel<DataGridTableRowModel>();
this.setSelectionModel(multiSelectionModel,DefaultSelectionEventManager.<DataGridTableRowModel> createCheckboxManager(0));
multiSelectionModel.addSelectionChangeHandler(new SelectionChangeEvent.Handler()
{
public void onSelectionChange(SelectionChangeEvent event)
{
count++;
E12CommonUtils.printOnConsole("Inside select : ");
Set<DataGridTableRowModel> set = multiSelectionModel.getSelectedSet();
Iterator it = set.iterator();
selectedValues = new StringBuffer();
selectedNames = new StringBuffer();
while (it.hasNext())
{
DataGridTableRowModel row = (DataGridTableRowModel) it.next();
E12CommonUtils.printOnConsole("Inside select = "+ row.getCellText(1));
selectedValues.append(row.getCellText(1) + ":");
E12CommonUtils.printOnConsole("AFTER APPENDING selectedValues = "+ row.getCellText(1));
selectedNames.append(row.getCellData(1).getName() + ":");
}
}
});
E12CommonUtils.printOnConsole("IN $$$$$$$$$$$$$$$$$=================135");
final Column<DataGridTableRowModel, Boolean> checkColumn = new Column<DataGridTableRowModel, Boolean>(new E12CheckBoxCell(false, false))
{
#Override
public Boolean getValue(DataGridTableRowModel dataGridTRModel)
{
boolean isSelected = multiSelectionModel.isSelected(dataGridTRModel);
E12CommonUtils.printOnConsole("checkColumn isSelected["+ isSelected + "]\tprotect["+ dataGridTRModel.getCellData(0).isProtect() + "]");
getFieldUpdater().update(0, dataGridTRModel, isSelected); // If commented deselect all works
return isSelected;
}
};
checkColumn.setFieldUpdater(new FieldUpdater<DataGridTableRowModel, Boolean>()
{
#Override
public void update(int idx,DataGridTableRowModel dataGridTRModel,Boolean value)
{
try
{
CellData cellData = dataGridTRModel.getCellData(0);
cellData.setData(String.valueOf(value));
dataGridTRModel.setCellData(0, cellData);
multiSelectionModel.setSelected(dataGridTRModel, value);
}
catch (Exception e)
{
Window.alert("Exception in checkColumn.setFieldUpdater : "+ e.getMessage());
}
}
});
CheckboxCell checkAll = new CheckboxCell();
// E12CheckBoxCell checkAll = new E12CheckBoxCell(false, false);
Header<Boolean> selectAllHeader = new Header<Boolean>(checkAll){
#Override
public Boolean getValue()
{
E12CommonUtils.printOnConsole("IN getValue()=========");
return false;
}
};
selectAllHeader.setUpdater(new ValueUpdater<Boolean>(){
#Override
public void update(Boolean selected)
{
for (DataGridTableRowModel ele : getVisibleItems())
{
E12CommonUtils.printOnConsole("IN update**************");
multiSelectionModel.setSelected(ele, selected);
}
}
});
this.addColumn(checkColumn, selectAllHeader);
this.setColumnWidth(checkColumn, 20, Unit.PX);
for (int i = 1; i < headerRow.getRowData().size(); i++)
{
final int index = i;
final String colName = headerRow.getCellData(index).getName();
width = 25;// TODO
E12CustomColumn column = new E12CustomColumn(index, false);
this.setColumnWidth(column, width + "px");
// Add a selection model to handle user selection.
ResizableHeader<DataGridTableRowModel> header = new ResizableHeader<DataGridTableRowModel>(colName, this, column) {
#Override
public String getValue()
{
return colName;
}
};
// this.addColumn(column, selectAllHeader,header);
// this.addColumn(selectAllHeader, header);
this.addColumn(column, header);
}
dataProvider.addDataDisplay(this);
dataProvider.refresh();
it may be browser compatibility issue - meta tag might help you
<meta http-equiv="X-UA-Compatible" content="IE=Edge,chrome=1">
For more details follow below url -
What does <meta http-equiv="X-UA-Compatible" content="IE=edge"> do?
Related
When I create combo box in particular only one 3rd column using table viewer in Eclipse SWT.
I think I've done everything ok until now, however when I compile the code then i get error:
Code:
public void createPartControl(Composite parent) {
Composite tableComposite = new Composite(parent, SWT.NONE);
tableColumnLayout = new TableColumnLayout();
tableComposite.setLayout(tableColumnLayout);
tableComposite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true,
true));
tableViewer = new TableViewer(tableComposite, SWT.MULTI | SWT.H_SCROLL
| SWT.V_SCROLL);
tableViewer.setContentProvider(ArrayContentProvider.getInstance());
// TODO viewer.setLabelProvider(new ViewLabelProvider());
table = tableViewer.getTable();
// Table table = tableViewer.getTable();
table.setHeaderVisible(true);
table.setLinesVisible(true);
String[] titles = { "Threat Name", "Category Name", "Status",
"Priority", "Description", "Justification" };
int[] bounds = { 100, 100, 100, 100 };
TableViewerColumn col = createTableViewerColumn(titles[2], bounds[2], 2);
col.setLabelProvider(new ColumnLabelProvider() {
#Override
public String getText(Object element) {
Dummy p = (Dummy) element;
return p.getValue();
}
});
col.setEditingSupport(new FirstValueEditingSupport(tableViewer));
}
private SelectionAdapter getSelectionAdapter(final TableColumn column,
final int index) {
SelectionAdapter selectionAdapter = new SelectionAdapter() {
#Override
public void widgetSelected(SelectionEvent e) {
tableViewer.refresh();
}
};
return selectionAdapter;
}
private static class Dummy {
public String value;
public Dummy(String value) {
this.value = value;
}
public String getValue() {
return value;
}
public void setValue(String value) {
this.value = value;
}
}
public static class FirstValueEditingSupport extends EditingSupport {
private final TableViewer viewer;
private final CellEditor editor;
private final String[] possibleValues = { "Mitigated",
"Not Applicable", "Not Started", "Needs Investigation" };
public FirstValueEditingSupport(TableViewer viewer) {
super(viewer);
this.viewer = viewer;
this.editor = new ComboBoxCellEditor(viewer.getTable(),
possibleValues);
}
#Override
protected CellEditor getCellEditor(Object element) {
return editor;
}
#Override
protected boolean canEdit(Object element) {
return true;
}
#Override
protected Object getValue(Object element) {
Dummy dummy = (Dummy) element;
int index = 0;
for (int i = 0; i < possibleValues.length; i++) {
if (Objects.equals(possibleValues[i], dummy.getValue())) {
index = i;
break;
}
}
return index;
}
#Override
protected void setValue(Object element, Object value) {
Dummy dummy = (Dummy) element;
int index = (Integer) value;
dummy.setValue(possibleValues[index]);
viewer.update(element, null);
}
}
private void fillRows(String shortdesc, String categ, String descp) {
System.out.println("fillRows call from above method.");
TableColumn status_Name_Col = tableViewer.getTable().getColumn(2);
System.out.println("**************** status_Name_Col ************ "
+ status_Name_Col);
tableViewer
.addSelectionChangedListener(new ISelectionChangedListener() {
#Override
public void selectionChanged(
SelectionChangedEvent selectionChangedEvent) {
StructuredSelection selection = (StructuredSelection) selectionChangedEvent
.getSelection();
System.out.println(((Dummy) selection.getFirstElement())
.getValue());
}
});
List<Dummy> elements = new ArrayList<>();
for (int i = 0; i < Connection.Number_Of_Connection; i++) {
elements.add(new Dummy("First option"));
}
tableViewer.setInput(elements);
tableColumnLayout.setColumnData(status_Name_Col, new ColumnWeightData(
1, true));
tableViewerColumn.setEditingSupport(new FirstValueEditingSupport(
tableViewer));
}
Questions:
how to display combo box in particular only one column?
You must not do the TableViewer setInput call until you have set up everything on the table. All the content providers, label providers, column layouts, editing support, .... must be set before setInput is called.
You must also call setColumnData for every column you create.
I have a celltable and I'm trying implement pagination, but it doesn't work. I looked for solutions but without any success. I click in next page, nothing happens. I forgot to implement something? Someone can help me? Thanks for attention! Below, my implementation:
Java:
public class TaskPanel extends Composite {
private static TaskPanelUiBinder uiBinder = GWT
.create(TaskPanelUiBinder.class);
interface TaskPanelUiBinder extends UiBinder<Widget, TaskPanel> {
}
public TaskPanel() {
this.tableTask = createTableTask();
//Populate celltable
preencheListaTask();
initWidget(uiBinder.createAndBindUi(this));
}
#UiField(provided = true)
CellTable<Task> tableTask;
#UiField
AccordionGroup accordionTable;
#UiField Button btnRefresh;
#UiField SimplePager pager;
#UiField FormTaskPanel formTask;
List<Task> listTasks = new ArrayList<Task>();
ListDataProvider<Task> tableTaskProvider;
public List<Task> getListTasks() {
return this.listTasks;
}
public void setListTasks(List<Task> lista) {
this.listTasks = lista;
}
public TaskPanel getTaskPanel() {
return this;
}
//Create celltable
public CellTable<Task> createTableTask() {
tableTask = new CellTable<Task>();
tableTask.setPageSize(2);
TextColumn<Task> dataInicioColumn = new TextColumn<Task>() {
#Override
public String getValue(Task task) {
return task.getDataInicial();
}
};
tableTask.addColumn(dataInicioColumn, "Data Inicio");
TextColumn<Task> dataFinalColumn = new TextColumn<Task>() {
#Override
public String getValue(Task task) {
return task.getDataFinal();
}
};
tableTask.addColumn(dataFinalColumn, "Data Final");
TextColumn<Task> descricaoColumn = new TextColumn<Task>() {
#Override
public String getValue(Task task) {
return task.getDescricao();
}
};
tableTask.addColumn(descricaoColumn, "Descricao");
TextColumn<Task> categoriaColumn = new TextColumn<Task>() {
#Override
public String getValue(Task task) {
return task.getCategoria();
}
};
tableTask.addColumn(categoriaColumn, "Categoria");
TextColumn<Task> prioridadeColumn = new TextColumn<Task>() {
#Override
public String getValue(Task task) {
return task.getPrioridade();
}
};
tableTask.addColumn(prioridadeColumn, "Prioridade");
return tableTask;
}
//Generate a JSON, and I parse for List<Task> to populate celltable
public List<Task> preencheListaTask() {
final List<Task> lista = new ArrayList<Task>();
String url = "http://127.0.0.1:8888/financecontrol/jsonTableTasks.json";
RequestBuilder builder = new RequestBuilder(RequestBuilder.GET, url);
try {
Request request = builder.sendRequest(null, new RequestCallback() {
public void onError(Request request, Throwable exception) {
System.out.println("Error to retrieve JSON");
}
#Override
public void onResponseReceived(Request arg0, Response response) {
if (200 == response.getStatusCode()) {
JSONValue value = JSONParser.parse(response.getText());
com.google.gwt.json.client.JSONObject taskObjs = value
.isObject();
JSONArray tasksArray = taskObjs.get("tasks").isArray();
if (tasksArray != null) {
for (int i = 0; i < tasksArray.size(); i++) {
com.google.gwt.json.client.JSONObject taskObj = tasksArray
.get(i).isObject();
String id = taskObj.get("ID").isNumber().toString();
String dataInicial = taskObj
.get("Data Inicial").isString()
.stringValue();
String dataFinal = taskObj.get("Data Final")
.isString().stringValue();
String descricao = taskObj.get("Descricao")
.isString().stringValue();
String categoria = taskObj.get("Categoria").isString().toString();
String prioridade = taskObj.get("Prioridade").isString().toString();
Task task = new Task(Integer.parseInt(id),
dataInicial, dataFinal,
descricao, categoria, prioridade);
lista.add(task);
}
setListTasks(lista);
System.out.println("JSON retrieve");
}
addLinhas();
} else {
System.out.println("Couldn't retrieve JSON ("
+ response.getStatusText() + ")");
}
}
});
} catch (RequestException e) {
System.err.println("Erro cath - " + e.getMessage());
}
return lista;
}
//add rows to celltable
public void addLinhas() {
this.tableTask.setRowCount(getListTasks().size(), true);
this.tableTask.setRowData(0, getListTasks());
tableTask.redraw();
tableTaskProvider = new ListDataProvider<Task>(getListTasks());
tableTaskProvider.addDataDisplay(tableTask);
//Pagination
SimplePager.Resources pagerResources = GWT.create(SimplePager.Resources.class);
pager = new SimplePager(TextLocation.CENTER, pagerResources, false, 0, true);
pager.setDisplay(tableTask);
}
#UiHandler("btnRefresh")
public void onClickRefresh(ClickEvent e) {
preencheListaTask();
}
}
UiBinder:
<!DOCTYPE ui:UiBinder SYSTEM "http://dl.google.com/gwt/DTD/xhtml.ent">
<ui:style>
.formContent {
height: 70%;
}
</ui:style>
<b:Container addStyleNames="{style.formContent}">
<r:FormTaskPanel ui:field="formTask"/>
<b:AccordionGroup ui:field="accordionTable" defaultOpen="false" heading="Task List">
<b:CellTable ui:field="tableTask" />
<b:SimplePager ui:field="pager" location="CENTER"/>
<b:Button ui:field="btnRefresh" text="Refresh" icon="REFRESH"/>
</b:AccordionGroup>
</b:Container>
You have pager = new SimplePager(...), so you have to declare #uiField(provided = true) for pager, and move pager declaration/initialisation into your createTableTask function (pager must be set before initwidget).
I have a custom datagrid which is defined as follows
public class CustomDataGrid<T> extends DataGrid<T> {
private static final int PAGE_SIZE = 10;
public CustomDataGrid(ProvidesKey<T> keysProvider) {
super(PAGE_SIZE, keysProvider);
}
public CustomDataGrid() {
super(PAGE_SIZE);
}
public void redrawRow(int absRowIndex) {
int relRowIndex = absRowIndex - getPageStart();
checkRowBounds(relRowIndex);
setRowData(absRowIndex, Collections.singletonList(getVisibleItem(relRowIndex)));
}
}
I am using ui binder and in my xml file I have defined the elements as follows
<com:CustomDataGrid ui:field="commissionListDataGrid"></com:CustomDataGrid>
Now the custom datagrid is initialised as follows
#UiField
CustomDataGrid commissionListDataGrid;
private final Set<Long> showingFriends = new HashSet<Long>();
private Column<ServiceCategorywiseCommissionDetails, String> viewFriendsColumn;
private Column<ServiceCategorywiseCommissionDetails, String> serviceType;
public ZoneCommissionListView() {
commissionListDataGrid = new CustomDataGrid<ServiceCategorywiseCommissionDetails>(new ProvidesKey<ServiceCategorywiseCommissionDetails>() {
#Override
public Object getKey(ServiceCategorywiseCommissionDetails item) {
return item == null ? null : item.getId();
}
});
commissionListDataGrid.setWidth("100%");
commissionListDataGrid.setEmptyTableWidget(new Label("Empty data"));
commissionListDataGrid.setHeight("100%");
// commissionListLayoutPanel = new SimpleLayoutPanel();
initCommissionListDataGrid();
// commissionListLayoutPanel.add(commissionListDataGrid);
//RootLayoutPanel.get().add(commissionListLayoutPanel);
}
#Override
public Widget asWidget() {
return this.widget;
}
#Override
public void setUiHandlers(ZoneCommissionListUiHandlers uiHandlers) {
this.uiHandlers = uiHandlers;
}
public void initCommissionListDataGrid() {
// View friends.
SafeHtmlRenderer<String> anchorRenderer = new AbstractSafeHtmlRenderer<String>() {
#Override
public SafeHtml render(String object) {
SafeHtmlBuilder sb = new SafeHtmlBuilder();
sb.appendHtmlConstant("(").appendEscaped(object).appendHtmlConstant(")");
return sb.toSafeHtml();
}
};
viewFriendsColumn = new Column<ServiceCategorywiseCommissionDetails, String>(new ClickableTextCell(anchorRenderer)) {
#Override
public String getValue(ServiceCategorywiseCommissionDetails object) {
if (showingFriends.contains(object.getId())) {
return "-";
} else {
return "+";
}
}
};
viewFriendsColumn.setFieldUpdater(new FieldUpdater<ServiceCategorywiseCommissionDetails, String>() {
#Override
public void update(int index, ServiceCategorywiseCommissionDetails object, String value) {
if (showingFriends.contains(object.getId())) {
showingFriends.remove(object.getId());
} else {
showingFriends.add(object.getId());
}
// Redraw the modified row.
commissionListDataGrid.redrawRow(index);
}
});
// First name.
serviceType = new Column<ServiceCategorywiseCommissionDetails, String>(new TextCell()) {
#Override
public String getValue(ServiceCategorywiseCommissionDetails object) {
return object.getServiceType();
}
};
commissionListDataGrid.setTableBuilder(new CustomTableBuilder());
commissionListDataGrid.setHeaderBuilder(new CustomHeaderBuilder());
// commissionListDataGrid.setFooterBuilder(new CustomFooterBuilder());
// GWT.log("list size is " + ContactDatabase.get().getDataProvider().getList().size());
// commissionListDataGrid.setRowData(ContactDatabase.get().getDataProvider().getList());
// Button button = new Button();
// button.setText("hello");
// commissionListLayoutPanel.add(commissionListDataGrid);
this.widget = uiBinder.createAndBindUi(this);
}
private class CustomTableBuilder extends AbstractCellTableBuilder<ServiceCategorywiseCommissionDetails> {
private final String childCell = " ";
private final String rowStyle;
private final String selectedRowStyle;
private final String cellStyle;
private final String selectedCellStyle;
#SuppressWarnings("deprecation")
public CustomTableBuilder() {
super(commissionListDataGrid);
// Cache styles for faster access.
Style style = commissionListDataGrid.getResources().style();
rowStyle = style.evenRow();
selectedRowStyle = " " + style.selectedRow();
cellStyle = style.cell() + " " + style.evenRowCell();
selectedCellStyle = " " + style.selectedRowCell();
}
public void buildRowImpl(ServiceCategorywiseCommissionDetails rowValue, int absRowIndex) {
buildServiceTypeRow(rowValue, absRowIndex, false);
GWT.log("Inside build row impl");
// Display list of friends.
if (showingFriends.contains(rowValue.getId())) {
TableRowBuilder row = startRow();
TableCellBuilder th = row.startTH();
th.text("").endTH();
TableCellBuilder th2 = row.startTH();
th2.text("Service Name").endTH();
TableCellBuilder th3 = row.startTH();
th3.text("SuperZone Commission").endTH();
TableCellBuilder th4 = row.startTH();
th4.text("Zone Commission").endTH();
row.endTR();
List<ServiceCommissionDetails> friends = rowValue.getServiceCommissionDetails();
for (ServiceCommissionDetails friend : friends) {
buildServiceCommissionDetailRow(friend, absRowIndex, true);
}
}
}
#SuppressWarnings("deprecation")
private void buildServiceTypeRow(ServiceCategorywiseCommissionDetails rowValue, int absRowIndex, boolean isFriend) {
GWT.log("inside build service Type row");
SelectionModel<? super ServiceCategorywiseCommissionDetails> selectionModel = commissionListDataGrid.getSelectionModel();
boolean isSelected = (selectionModel == null || rowValue == null) ? false : selectionModel.isSelected(rowValue);
boolean isEven = absRowIndex % 2 == 0;
StringBuilder trClasses = new StringBuilder(rowStyle);
if (isSelected) {
trClasses.append(selectedRowStyle);
}
// Calculate the cell styles.
String cellStyles = cellStyle;
if (isSelected) {
cellStyles += selectedCellStyle;
}
if (isFriend) {
cellStyles += childCell;
}
TableRowBuilder row = startRow();
row.className(trClasses.toString());
/*
* Checkbox column.
*
* This table will uses a checkbox column for selection. Alternatively, you can call dataGrid.setSelectionEnabled(true) to
* enable mouse selection.
*/
TableCellBuilder td = row.startTD();
td.className(cellStyles);
td.style().outlineStyle(OutlineStyle.NONE).endStyle();
td.endTD();
/*
* View friends column.
*
* Displays a link to "show friends". When clicked, the list of friends is displayed below the contact.
*/
td = row.startTD();
td.className(cellStyles);
if (!isFriend) {
td.style().outlineStyle(OutlineStyle.NONE).endStyle();
renderCell(td, createContext(1), viewFriendsColumn, rowValue);
}
td.endTD();
// First name column.
td = row.startTD();
td.className(cellStyles);
td.style().outlineStyle(OutlineStyle.NONE).endStyle();
if (isFriend) {
td.text(rowValue.getServiceType());
} else {
renderCell(td, createContext(2), serviceType, rowValue);
}
td.endTD();
// Last name column.
row.endTR();
}
#SuppressWarnings("deprecation")
private void buildServiceCommissionDetailRow(ServiceCommissionDetails rowValue, int absRowIndex, boolean isFriend) {
GWT.log("inside build service commission detail row");
// Calculate the row styles.
// boolean isSelected = (selectionModel == null || rowValue == null)
// ? false : selectionModel.isSelected(rowValue);
// boolean isEven = absRowIndex % 2 == 0;
StringBuilder trClasses = new StringBuilder(rowStyle);
// if (isSelected) {
// trClasses.append(selectedRowStyle);
// }
// Calculate the cell styles.
String cellStyles = cellStyle;
// cellStyles += selectedCellStyle;
cellStyles += childCell;
TableRowBuilder row = startRow();
row.className(trClasses.toString());
/*
* Checkbox column.
*
* This table will uses a checkbox column for selection. Alternatively, you can call dataGrid.setSelectionEnabled(true) to
* enable mouse selection.
*/
TableCellBuilder td = row.startTD();
td.className(cellStyles);
td.style().outlineStyle(OutlineStyle.NONE).endStyle();
td.endTD();
/*
* View friends column.
*
* Displays a link to "show friends". When clicked, the list of friends is displayed below the contact.
*/
// First name column.
td = row.startTD();
td.className(cellStyles);
td.style().outlineStyle(OutlineStyle.NONE).endStyle();
td.text(rowValue.getServiceName());
td.endTD();
td = row.startTD();
td.className(cellStyles);
td.style().outlineStyle(OutlineStyle.NONE).endStyle();
td.text(rowValue.getSuperZoneCommission());
td.endTD();
td = row.startTD();
td.className(cellStyles);
td.style().outlineStyle(OutlineStyle.NONE).endStyle();
td.text(rowValue.getZoneCommission());
td.endTD();
// Last name column.
row.endTR();
}
}
private class CustomHeaderBuilder extends AbstractHeaderOrFooterBuilder<ServiceCategorywiseCommissionDetails> {
private Header<String> firstNameHeader = new TextHeader("Co mmission List");
public CustomHeaderBuilder() {
super(commissionListDataGrid, false);
setSortIconStartOfLine(false);
}
#Override
protected boolean buildHeaderOrFooterImpl() {
Style style = commissionListDataGrid.getResources().style();
String groupHeaderCell = "Header Cell";
// Add a 2x2 header above the checkbox and show friends columns.
TableRowBuilder tr = startRow();
tr.startTH().colSpan(2).rowSpan(2).className(style.header() + " " + style.firstColumnHeader());
tr.endTH();
/*
* Name group header. Associated with the last name column, so clicking on the group header sorts by last name.
*/
// Get information about the sorted column.
ColumnSortList sortList = commissionListDataGrid.getColumnSortList();
ColumnSortInfo sortedInfo = (sortList.size() == 0) ? null : sortList.get(0);
Column<?, ?> sortedColumn = (sortedInfo == null) ? null : sortedInfo.getColumn();
boolean isSortAscending = (sortedInfo == null) ? false : sortedInfo.isAscending();
// Add column headers.
tr = startRow();
buildHeader(tr, firstNameHeader, serviceType, sortedColumn, isSortAscending, false, false);
tr.endTR();
return true;
}
private void buildHeader(TableRowBuilder out, Header<?> header, Column<ServiceCategorywiseCommissionDetails, ?> column, Column<?, ?> sortedColumn, boolean isSortAscending, boolean isFirst,
boolean isLast) {
// Choose the classes to include with the element.
Style style = commissionListDataGrid.getResources().style();
boolean isSorted = (sortedColumn == column);
StringBuilder classesBuilder = new StringBuilder(style.header());
if (isFirst) {
classesBuilder.append(" " + style.firstColumnHeader());
}
if (isLast) {
classesBuilder.append(" " + style.lastColumnHeader());
}
// if (column.isSortable()) {
// classesBuilder.append(" " + style.sortableHeader());
// }
if (isSorted) {
classesBuilder.append(" " + (isSortAscending ? style.sortedHeaderAscending() : style.sortedHeaderDescending()));
}
// Create the table cell.
TableCellBuilder th = out.startTH().className(classesBuilder.toString());
// Associate the cell with the column to enable sorting of the
// column.
enableColumnHandlers(th, column);
// Render the header.
Context context = new Context(0, 2, header.getKey());
renderSortableHeader(th, context, header, isSorted, isSortAscending);
// End the table cell.
th.endTH();
}
}
public void setCommissionListDataGrid(ListDataProvider<ServiceCategorywiseCommissionDetails> dataProvider) {
GWT.log("inside set commissionListDataGrid size is " + dataProvider.getList().size());
commissionListDataGrid.setRowData(dataProvider.getList());
}
And I have a method in the presenter which calls the method set CommissionListDataGrid and sets its row value.
While doing this the data grid is not displayed. However if i add simplelayoutpanel in the following way in the constructor 'ZoneCommissionListView()'
RootPanel.get().add(commissionListLayoutPanel);
Then the data grid is displayed .What exactly am I missing .Any suggestion would be appreciated
DataGrid requires to be put in a LayoutPanel or Panel that implements
the ProvidesResize interface to be visible.
Source
And the SimpelLayoutPanel which you tested also implements the ProvidesResize Interface.
Hello I created a custom list view and for update used notifyDataSetChanged() method but my list not updated. please help me.
this is my source code
public class fourthPage extends ListActivity {
ListingFeedParser ls;
List<Listings> data;
EditText SearchText;
Button Search;
private LayoutInflater mInflater;
private ProgressDialog progDialog;
private int pageCount = 0;
String URL;
ListViewListingsAdapter adapter;
Message msg;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Bundle b = getIntent().getExtras();
URL = b.getString("URL");
Log.i("Ran->URL", "->" + URL);
MYCITY_STATIC_DATA.fourthPage_main_URL = URL;
final ListingFeedParser lf = new ListingFeedParser(URL);
Search = (Button) findViewById(R.id.searchButton);
SearchText = (EditText) findViewById(R.id.search);
InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
imm.hideSoftInputFromWindow(SearchText.getWindowToken(), 0);
this.getWindow().setSoftInputMode(
WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN);
try {
progDialog = ProgressDialog.show(this, "",
"Loading please wait....", true);
progDialog.setCancelable(true);
new Thread(new Runnable() {
#Override
public void run() {
try {
data = lf.parse();
} catch (Exception e) {
e.printStackTrace();
}
msg = new Message();
msg.what = 1;
fourthPage.this._handle.sendMessage(msg);
}
}).start();
Search.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
SearchText = (EditText) findViewById(R.id.search);
if (SearchText.getText().toString().equals(""))
return;
CurrentLocationTimer myLocation = new CurrentLocationTimer();
LocationResult locationResult = new LocationResult() {
#Override
public void gotLocation(final Location location) {
Toast.makeText(
getApplicationContext(),
location.getLatitude() + " "
+ location.getLongitude(),
Toast.LENGTH_LONG).show();
String URL = "http://75.125.237.76/phone_feed_2_point_0_test.php?"
+ "lat="
+ location.getLatitude()
+ "&lng="
+ location.getLongitude()
+ "&page=0&search="
+ SearchText.getText().toString();
Log.e("fourthPage.java Search URL :->", "" + URL);
Bundle b = new Bundle();
b.putString("URL", URL);
Intent it = new Intent(getApplicationContext(),
fourthPage.class);
it.putExtras(b);
startActivity(it);
}
};
myLocation.getLocation(getApplicationContext(),
locationResult);
}
});
} catch (Exception e) {
Toast.makeText(getApplicationContext(),
"No data available for this request", Toast.LENGTH_LONG)
.show();
}
}
private Handler _handle = new Handler() {
#Override
public void handleMessage(Message msg) {
progDialog.dismiss();
if (msg.what == 1) {
if (data.size() == 0 || data == null) {
Toast.makeText(getApplicationContext(),
"No data available for this request",
Toast.LENGTH_LONG).show();
}
mInflater = (LayoutInflater) getSystemService(Activity.LAYOUT_INFLATER_SERVICE);
adapter = new ListViewListingsAdapter(getApplicationContext(),
R.layout.list1, R.id.title, data, mInflater);
setListAdapter(adapter);
getListView().setTextFilterEnabled(true);
adapter.notifyDataSetChanged();
} else {
Toast.makeText(getApplicationContext(),
"Error in retrieving the method", Toast.LENGTH_SHORT)
.show();
}
}
};
public void onListItemClick(ListView parent, View v, int position, long id) {
// remember i m going from bookmark list
MYCITY_STATIC_DATA.come_from_bookmark = false;
Log.i("4thPage.java - MYCITY_STATIC_DATA.come_from_bookmark",
"set false - > check" + MYCITY_STATIC_DATA.come_from_bookmark);
Listings sc = (Listings) this.getListAdapter().getItem(position);
if (sc.getName().equalsIgnoreCase("SEE MORE...")) {
pageCount = pageCount + 1;
final ListingFeedParser lf = new ListingFeedParser((URL.substring(
0, URL.length() - 1)) + pageCount);
try {
progDialog = ProgressDialog.show(this, "",
"Loading please wait....", true);
progDialog.setCancelable(true);
new Thread(new Runnable() {
#Override
public void run() {
data.remove(data.size() - 1);
data.addAll(lf.parse());
Message msg = new Message();
msg.what = 1;
fourthPage.this._handle.sendMessage(msg);
}
}).start();
} catch (Exception e) {
pageCount = pageCount - 1;
// TODO: handle exception
Toast newToast = Toast.makeText(this, "Error in getting Data",
Toast.LENGTH_SHORT);
}
} else {
Bundle b = new Bundle();
b.putParcelable("listing", sc);
Intent it = new Intent(getApplicationContext(),
FifthPageTabbed.class);
it.putExtras(b);
startActivity(it);
}
}
#Override
public void onBackPressed() {
setResult(0);
finish();
}
#Override
protected void onResume() {
// TODO Auto-generated method stub
super.onResume();
Log.e("RESUME:-)", "4th Page onResume");
try {
//adapter.notifyDataSetChanged();
//setListAdapter(adapter);
//getListView().setTextFilterEnabled(true);
} catch (Exception e) {
Log.e("EXCEPTION in 4th page",
"in onResume msg:->" + e.getMessage());
}
}
}
Do not re-create the object of ArrayList or Array you are passing to adapter, just modify same ArrayList or Array again. and also when array or arrylist size not changed after you modify adapter then in that case notifydatasetchange will not work.
In shot it is work only when array or arraylist size increases or decreases.
What version of Android are you targeting? The latest version seems to have revised how notifyDataSetChanged() works. If you target sdk 11 it might work?
Also, there seems to be a different (and very thorough answer) to this question in another post:
notifyDataSetChanged example
Using GWT 2.4...
I am building upon a complex Composite dual view/edit mode implementation that is backed GWT's DataGrid and MultiSelectionModel. My goal is for a user to be able to click a checkbox in each row that they'd like to post updates for.
Here's a screenshot from a semi-functional interface:
Note the selected (highlighted) rows.
Now the problem is that when I type something in any of the cells (e.g., the first row's $ cell under the $/Mw 1 composite cell header), then click that row's checkbox (or any other row's checkbox for that matter) to select or de-select, the value gets reset to the original value when the screen's data was first requested. Not desired behavior by any stretch!
Let's take a look at my custom implementation for the grid. (Excuse the length).
public abstract class ToggleableGrid<T extends Identifiable<?>> extends Composite {
private static final int CHKBOX_COLUMN_WIDTH = App.INSTANCE.checkboxColumnWidth();
private static final DisplayMode DEFAULT_MODE = DisplayMode.VIEW;
private ProvidesKey<T> keyProvider;
private DataGrid<T> grid;
private MultiSelectionModel<T> selectionModel;
private ListDataProvider<T> dataProvider;
private int tabIndex = 0;
public ToggleableGrid() {
final DataGridConfiguration config = new DefaultDataGridConfiguration();
initGrid(config);
}
public ToggleableGrid(DataGridConfiguration config) {
initGrid(config);
}
private void initGrid(DataGridConfiguration config) {
keyProvider = new ProvidesKey<T>() {
#Override
public Object getKey(T item) {
return item == null ? null : item.getId();
}
};
grid = new DataGrid<T>(config.getPageSize(), config.getResources(), keyProvider);
// Set the message to display when the table is empty.
grid.setEmptyTableWidget(new Label(UiMessages.INSTANCE.no_results()));
initWidget(grid);
setVisible(true);
}
public void setInput(List<T> content) {
setInput(content, DEFAULT_MODE);
}
public void setInput(List<T> content, DisplayMode mode) {
resetTableColumns();
if (isInEditMode(mode)) {
// Add a selection model so we can select cells
selectionModel = new MultiSelectionModel<T>(keyProvider);
grid.setSelectionModel(selectionModel, DefaultSelectionEventManager.<T> createCheckboxManager(0));
addRowSelector();
}
dataProvider = new ListDataProvider<T>(content);
final ListHandler<T> sortHandler = new ListHandler<T>(dataProvider.getList());
grid.addColumnSortHandler(sortHandler);
initializeStructure(constructMetadata(), sortHandler, mode);
dataProvider.addDataDisplay(grid);
}
// see https://stackoverflow.com/questions/3772480/remove-all-columns-from-a-celltable
// concrete classes are forced to maintain a handle on all columns added
private void resetTableColumns() {
for (final Column<T, ?> column: allColumns()) {
grid.removeColumn(column);
}
allColumns().clear();
}
protected boolean isInEditMode(DisplayMode currentDisplayMode) {
boolean result = false;
if (currentDisplayMode.equals(DisplayMode.EDIT)) {
result = true;
}
return result;
}
protected abstract Set<Column<T, ?>> allColumns();
protected abstract TableMetadata constructMetadata();
protected abstract void initializeStructure(TableMetadata metadata, ListHandler<T> sortHandler, DisplayMode mode);
protected void setColumnHorizontalAlignment(Column<T, ?> column, HorizontalAlignmentConstant alignment) {
column.setHorizontalAlignment(alignment);
}
// TODO figure out how to add a checkbox to column header that provides select/de-select all capability
// see https://stackoverflow.com/questions/6174689/gwt-celltable-programmatically-select-checkboxcell
protected void addRowSelector() {
final Column<T, Boolean> rowSelectColumn = new Column<T, Boolean>(new CheckboxCell(true, false)) {
#Override
public Boolean getValue(T value) {
Boolean result;
// check for null value and return null;
if(value == null || value.getId() == null) {
result = null;
} else { // get value from the selection model
result = selectionModel.isSelected(value);
}
return result;
}
};
addColumn(rowSelectColumn, UiMessages.INSTANCE.select());
setColumnWidth(rowSelectColumn, CHKBOX_COLUMN_WIDTH, Unit.PX);
setColumnHorizontalAlignment(rowSelectColumn, HasHorizontalAlignment.ALIGN_CENTER);
}
protected void setColumnWidth(Column<T, ?> column, int width, Unit unit) {
grid.setColumnWidth(column, width, unit);
}
protected void addColumn(Column<T, ?> column, String columnHeaderName) {
addColumn(column, columnHeaderName, HasHorizontalAlignment.ALIGN_RIGHT);
}
protected void addColumn(Column<T, ?> column, String columnHeaderName, HorizontalAlignmentConstant alignment) {
final SafeHtmlBuilder sb = new SafeHtmlBuilder();
final String divStart = "<div align=\""+ alignment.getTextAlignString() + "\" class=\"" +UiResources.INSTANCE.style().word_wrap() + "\">";
sb.appendHtmlConstant(divStart).appendEscaped(columnHeaderName).appendHtmlConstant("</div>");
final SafeHtml header = sb.toSafeHtml();
grid.addColumn(column, header);
allColumns().add(column);
}
protected CompositeCell<T> generateCompositeCell(final List<HasCell<T, ?>> hasCells) {
final CompositeCell<T> compositeCell = new CompositeCell<T>(hasCells) {
#Override
public void render(Context context, T value, SafeHtmlBuilder sb) {
sb.appendHtmlConstant("<table><tbody><tr>");
super.render(context, value, sb);
sb.appendHtmlConstant("</tr></tbody></table>");
}
#Override
protected Element getContainerElement(Element parent) {
// Return the first TR element in the table.
return parent.getFirstChildElement().getFirstChildElement().getFirstChildElement();
}
#Override
protected <X> void render(Context context, T value,
SafeHtmlBuilder sb, HasCell<T, X> hasCell) {
final Cell<X> cell = hasCell.getCell();
sb.appendHtmlConstant("<td>");
cell.render(context, hasCell.getValue(value), sb);
sb.appendHtmlConstant("</td>");
}
};
return compositeCell;
}
// FIXME not working quite the way we'd expect, index incremented within column for each row, not each row by column
protected int nextTabIndex() {
tabIndex++;
return tabIndex;
}
protected AbstractCellTable<T> getGrid() {
return grid;
}
/**
* Gets the selected (row(s) of) data from grid (used in edit mode)
* #return the selected data (as per selection model)
*/
public List<T> getSelectedData() {
final List<T> data = new ArrayList<T>();
data.addAll(selectionModel.getSelectedSet());
return data;
}
/**
* Gets all (row(s) of) data in grid (used in edit mode)
* #return all data as list
*/
public List<T> getAllData() {
return dataProvider.getList();
}
/**
* Clears the currently selected (row(s) of) data (used in edit mode)
*/
public void clearSelectedData() {
selectionModel.clear();
grid.redraw();
}
}
So, the interesting methods to stare at above (I think) are setInput, generateCompositeCell and addRowSelector.
We initialize the grid with List data and set a display mode in setInput. It's here as well that the selection model is initialized. It uses GWT's DefaultSelectionEventManager createCheckboxManager().
I've been trying to grok the event model, but it eludes me. I've visited the following sources online, but have come up short on avenues to solving this problem.
-- https://groups.google.com/forum/?fromgroups#!topic/google-web-toolkit/k5sfURxDaVg
AbstractInputCell's getConsumedEventsImpl adds focus, blur and keydown, so this (I believe) is not a track I need to explore
-- GWT CellTable programmatically select CheckBoxCell
The various ways you can instantiate a CheckBoxCell got me curious, and I've tried many constructor argument permutations, but the one I settled on (true, false) is (I believe) the right one
Agreeing here and now (before being reprimanded) that there's perhaps some unnecessary complexity in my implementation, but I am looking for guidance nonetheless. Thanks!
Update
If it helps here's an impl of the aforementioned ToggleableGrid. If anything it gives you more detail on what goes into each CompositeCell. For details on AbstractValidatableColumn and ValidatableInputCell, see: In search of a GWT validation example... where art thou?.
public class EnergyOfferGrid extends ToggleableGrid<EnergyOfferDTO> {
public EnergyOfferGrid() {
super();
}
public EnergyOfferGrid(DataGridConfiguration config) {
super(config);
}
private static final int MAX_NUMBER_OF_MW_PRICE_POINTS = App.INSTANCE.maxNoOfMwPricePoints();
private Set<Column<EnergyOfferDTO, ?>> columns = new HashSet<Column<EnergyOfferDTO, ?>>();
#Override
protected Set<Column<EnergyOfferDTO, ?>> allColumns() {
return columns;
}
#Override
protected TableMetadata constructMetadata() {
final TableMetadata metadata = new TableMetadata();
// TODO Consider a predefined set of ReferenceData to be held in a common package
// Use Slope
metadata.addColumnMetadata(UiMessages.INSTANCE.use_slope(), new String[] {UiMessages.INSTANCE.yes(), UiMessages.INSTANCE.no()}, new String[] {"true", "false"});
return metadata;
}
#Override
protected void initializeStructure(TableMetadata metadata, ListHandler<EnergyOfferDTO> sortHandler, DisplayMode currentDisplayMode) {
addHourColumn(sortHandler);
addUseSlopeColumn(metadata, sortHandler, currentDisplayMode);
for (int i = 0; i < MAX_NUMBER_OF_MW_PRICE_POINTS; i++) { // zero-based indexing
addPriceMwColumn(i, currentDisplayMode);
}
}
protected void addHourColumn(ListHandler<EnergyOfferDTO> sortHandler) {
final Column<EnergyOfferDTO, String> hourColumn = new Column<EnergyOfferDTO, String>(new TextCell()) {
#Override
public String getValue(EnergyOfferDTO energyOffer) {
String result = "";
if (energyOffer.getId() != null) {
final String isoDateTime = energyOffer.getId().getOperatingHour();
if (isoDateTime != null && !isoDateTime.isEmpty()) {
final Date dateTime = CSTimeUtil.isoToDate(isoDateTime);
if (dateTime != null) {
result = CSTimeUtil.dateToHour(dateTime);
}
}
}
return result;
}
};
hourColumn.setSortable(true);
sortHandler.setComparator(hourColumn, new Comparator<EnergyOfferDTO>() {
#Override
public int compare(EnergyOfferDTO eo1, EnergyOfferDTO eo2) {
final String date1 = eo1.getId() != null ? eo1.getId().getOperatingHour() : "";
final String date2 = eo2.getId() != null ? eo2.getId().getOperatingHour() : "";
return date1.compareTo(date2);
}
});
// We know that the data is sorted by hour by default.
getGrid(). getColumnSortList().push(hourColumn);
addColumn(hourColumn, UiMessages.INSTANCE.hour());
setColumnWidth(hourColumn, 45, Unit.PX);
setColumnHorizontalAlignment(hourColumn, HasHorizontalAlignment.ALIGN_RIGHT);
}
protected void addUseSlopeColumn(TableMetadata metadata, ListHandler<EnergyOfferDTO> sortHandler, DisplayMode currentDisplayMode) {
final ReferenceData refData = metadata.allColumnMetadata().get(UiMessages.INSTANCE.use_slope());
Column<EnergyOfferDTO, String> useSlopeColumn;
Cell<String> cell;
if (isInEditMode(currentDisplayMode)) {
cell = new ReferenceDataBackedSelectionCell(refData);
} else {
cell = new TextCell();
}
useSlopeColumn = new Column<EnergyOfferDTO, String>(cell) {
#Override
public String getValue(EnergyOfferDTO energyOffer) {
return refData.getDisplayValueForSubmitValue(Boolean.toString(energyOffer.isSlopeUsed()));
}
};
useSlopeColumn.setSortable(true);
sortHandler.setComparator(useSlopeColumn, new Comparator<EnergyOfferDTO>() {
#Override
public int compare(EnergyOfferDTO eo1, EnergyOfferDTO eo2) {
final String slopeUsed1 = String.valueOf(eo1.isSlopeUsed());
final String slopeUsed2 = String.valueOf(eo1.isSlopeUsed());
return slopeUsed1.compareTo(slopeUsed2);
}
});
addColumn(useSlopeColumn, UiMessages.INSTANCE.use_slope());
setColumnWidth(useSlopeColumn, 75, Unit.PX);
setColumnHorizontalAlignment(useSlopeColumn, HasHorizontalAlignment.ALIGN_RIGHT);
}
protected void addPriceMwColumn(final int colIndex, DisplayMode currentDisplayMode) {
// Construct a composite cell for energy offers that includes a pair of text inputs
final List<HasCell<EnergyOfferDTO, ?>> columns = new ArrayList<
HasCell<EnergyOfferDTO, ?>>();
// this DTO is passed along so that price and mw values for new entries are kept together
final OfferPriceMwPair newOfferPriceMwPair = new OfferPriceMwPair();
// Price
final Column<EnergyOfferDTO, String> priceColumn = generatePriceColumn(colIndex, newOfferPriceMwPair, currentDisplayMode);
columns.add(priceColumn);
// MW
final Column<EnergyOfferDTO, String> mwColumn = generateMwColumn(colIndex, newOfferPriceMwPair, currentDisplayMode);
columns.add(mwColumn);
// Composite
final CompositeCell<EnergyOfferDTO> priceMwColumnInnards = generateCompositeCell(columns);
final IdentityColumn<EnergyOfferDTO> priceMwColumn = new IdentityColumn<EnergyOfferDTO>(priceMwColumnInnards);
final StringBuilder colHeader = new StringBuilder();
colHeader.append(UiMessages.INSTANCE.price_mw_header()).append(" ").append(String.valueOf(colIndex + 1));
addColumn(priceMwColumn, colHeader.toString());
setColumnWidth(priceMwColumn, 7, Unit.EM);
setColumnHorizontalAlignment(priceMwColumn, HasHorizontalAlignment.ALIGN_RIGHT);
}
protected Column<EnergyOfferDTO, String> generatePriceColumn(final int colIndex, final OfferPriceMwPair newOfferPriceMwPair, DisplayMode currentDisplayMode) {
Column<EnergyOfferDTO, String> priceColumn;
if (isInEditMode(currentDisplayMode)) {
priceColumn = new BigDecimalValidatableColumn<EnergyOfferDTO, OfferPriceMwPair>(nextTabIndex(), getGrid()) {
#Override
public String getValue(EnergyOfferDTO energyOffer) {
return obtainPriceValue(colIndex, energyOffer, false);
}
#Override
public void doUpdate(int index, EnergyOfferDTO energyOffer, String value) {
if (value != null && !value.isEmpty()) {
// number format exceptions should be caught and handled by event bus's handle method
final double valueAsDouble = NumberFormat.getDecimalFormat().parse(value);
final BigDecimal price = BigDecimal.valueOf(valueAsDouble);
final List<OfferPriceMwPair> offerPriceCurve = energyOffer.getCurve();
final OfferPriceMwPair offerPriceMwPair = offerPriceCurve.get(colIndex);
if (offerPriceMwPair == null) { // we have a new price value
newOfferPriceMwPair.setPrice(price);
offerPriceCurve.add(newOfferPriceMwPair);
} else {
offerPriceMwPair.setPrice(price);
}
}
}
#Override
protected String getPropertyName() {
return "price";
}
#Override
protected Class<OfferPriceMwPair> getPropertyOwner() {
return OfferPriceMwPair.class;
}
};
} else {
priceColumn = new Column<EnergyOfferDTO, String>(new TextCell()) {
#Override
public String getValue(EnergyOfferDTO energyOffer) {
final String result = obtainPriceValue(colIndex, energyOffer, true);
return result;
}
};
}
return priceColumn;
}
private String obtainPriceValue(final int colIndex, EnergyOfferDTO energyOffer, boolean withCurrency) {
String result = "";
if (energyOffer != null) {
final List<OfferPriceMwPair> offerPriceCurve = energyOffer.getCurve();
final int numberOfPairs = offerPriceCurve.size();
if (colIndex < numberOfPairs) {
final OfferPriceMwPair offerPriceMwPair = offerPriceCurve.get(colIndex);
if (offerPriceMwPair != null) {
final BigDecimal price = offerPriceMwPair.getPrice();
if (price != null) {
final double value = price.doubleValue();
if (withCurrency) {
result = NumberFormat.getCurrencyFormat().format(value);
} else {
result = NumberFormat.getDecimalFormat().format(value);
}
}
}
}
}
return result;
}
protected Column<EnergyOfferDTO, String> generateMwColumn(final int colIndex, final OfferPriceMwPair newOfferPriceMwPair, DisplayMode currentDisplayMode) {
Column<EnergyOfferDTO, String> mwColumn;
if (isInEditMode(currentDisplayMode)) {
mwColumn = new BigDecimalValidatableColumn<EnergyOfferDTO, PriceMwPair>(nextTabIndex(), getGrid()) {
#Override
public String getValue(EnergyOfferDTO energyOffer) {
return obtainMwValue(colIndex, energyOffer);
}
#Override
public void doUpdate(int index, EnergyOfferDTO energyOffer, String value) {
if (value != null && !value.isEmpty()) {
// number format exceptions should be caught and handled by event bus's handle method
final double valueAsDouble = NumberFormat.getDecimalFormat().parse(value);
final BigDecimal mw = BigDecimal.valueOf(valueAsDouble);
final List<OfferPriceMwPair> offerPriceCurve = energyOffer.getCurve();
final OfferPriceMwPair offerPriceMwPair = offerPriceCurve.get(colIndex);
if (offerPriceMwPair == null) { // we have a new price value
newOfferPriceMwPair.setMw(mw);
offerPriceCurve.add(newOfferPriceMwPair);
} else {
offerPriceMwPair.setMw(mw);
}
}
}
#Override
protected String getPropertyName() {
return "mw";
}
#Override
protected Class<PriceMwPair> getPropertyOwner() {
return PriceMwPair.class;
}
};
} else {
mwColumn = new Column<EnergyOfferDTO, String>(new TextCell()) {
#Override
public String getValue(EnergyOfferDTO energyOffer) {
final String result = obtainMwValue(colIndex, energyOffer);
return result;
}
};
}
return mwColumn;
}
private String obtainMwValue(final int colIndex, EnergyOfferDTO energyOffer) {
String result = "";
if (energyOffer != null) {
final List<OfferPriceMwPair> offerPriceCurve = energyOffer.getCurve();
final int numberOfPairs = offerPriceCurve.size();
if (colIndex < numberOfPairs) {
final PriceMwPair offerPriceMwPair = offerPriceCurve.get(colIndex);
if (offerPriceMwPair != null) {
final BigDecimal mw = offerPriceMwPair.getMw();
if (mw != null) {
result = NumberFormat.getDecimalFormat().format(mw);
}
}
}
}
return result;
}
}
All that custom work w.r.t. WrapperCell and CompositeValidatableColumn was unnecessary.
It turns out that there's a way you should not construct CompositeCells. See http://code.google.com/p/google-web-toolkit/issues/detail?id=5714. My CompositeCells were not receiving events. So, I changed the way I construct them in ToggleableGrid.
protected CompositeCell<T> generateCompositeCell(final List<HasCell<T, String>> hasCells) {
final CompositeCell<T> compositeCell = new CompositeCell<T>(hasCells) {
// to not run afoul of http://code.google.com/p/google-web-toolkit/issues/detail?id=5714
#Override
public void render(Context context, T value, SafeHtmlBuilder sb) {
sb.appendHtmlConstant("<div style=\"display: inline\">");
super.render(context, value, sb);
sb.appendHtmlConstant("</div>");
}
#Override
protected Element getContainerElement(Element parent) {
// Return the first element in the DIV.
return parent.getFirstChildElement();
}
};
return compositeCell;
}
After that change and incorporating my other validation-oriented classes: ValidatableFieldUpdater, AbstractValidatableColumn (and derivatives), ValidatableInputField and ConversionResult, life couldn't be more grand!