I assumed the solution will be like that answer
Delete rows from Nattable
but I can't edit doCommand to add one more argument for the object needed to be inserted as doCommand is an override method
public boolean doCommand(ILayer targetLayer, AddRowCommand command) {
//convert the transported position to the target layer
if (command.convertToTargetLayer(targetLayer)) {
//remove the element
this.bodyData.remove(command.getRowPosition());
//fire the event to refresh
targetLayer.fireLayerEvent(new RowInsertEvent(targetLayer, command.getRowPosition()));
return true;
}
return false;
}
You don't have to modify doCommand(). You need to modify your AddRowCommand to transport the objects you want to add.
Related
We have a NatTable with no header and I treated the 1st row as a Header,
- Register CELL_PAINTER to change the visualization to look this row similar to header.
Also registered the CustomCommandHandler which implements ILayerCommandHandler to prevent cell/row selection for the 1st row.
selectionLayer.registerCommandHandler(new CustomCommandHandler());
Cell selection is working fine for other cells.
public boolean doCommand(final ILayer layer, final ILayerCommand command)
{
if (command instanceof ViewportSelectRowCommand)
{
return ((ViewportSelectRowCommand) command).getRowPosition() <= 1;
}
else if (command instanceof SelectCellCommand)
{
return ((SelectCellCommand) command).getRowPosition() <= 1
}
return false;
}
Now how can I select the entire column on selecting cells on 1st row. So that it should not affect the cell selection for other row cells.
Clicking any cells on 1st row should select entire column.
Clicking any cells on other rows should select the same cell. (currently this is happening)
Although I am not quite sure what sense it makes to only have a body that is configured in a complicated way to look and behave like it has headers without really having headers (IMHO this does not make any sense), you need to register a custom handler that checks for the column position and transform the SelectCellCommand into a SelectColumnCommand.
this.selectionLayer.registerCommandHandler(new SelectCellCommandHandler(this.selectionLayer) {
#Override
public boolean doCommand(ILayer targetLayer, SelectCellCommand command) {
if (command.convertToTargetLayer(targetLayer)
&& command.getColumnPosition() == 0) {
return targetLayer.doCommand(
new SelectColumnCommand(
targetLayer,
command.getColumnPosition(),
command.getRowPosition(),
command.isShiftMask(),
command.isControlMask()));
}
return super.doCommand(targetLayer, command);
}
});
But I expect there will be more issues on the way as the immitated headers do not behave like real headers also in other scenarios. You could also try to override getRegionLabelsByXY(int, int) but I am not sure if this would work or cause more problems.
I have a problem with validation on form actually sub-form.
In my website I have some kind of table and "Add row" button (BlockingAjaxSubmitLink).
When I try add let say 2 rows, I get validation error (because row in this table has Required=True parameter) and I can't add another row. I tried use simple AjaxLink but it doesn't have reference to form in onClick method and when I complete some rows and click "Add row" this data get lost.
I want to enable validation only after "save" button click.
Any idea how to deal with this problem?
I do something like you want using an AjaxLink.
My AjaxLink:
private AjaxLink addNewRow = new AjaxLink("addNewRow") {
#Override
public void onClick(AjaxRequestTarget target) {
MyEntityObject newTableRowObject = new MyEntityObject(irrelevantParameter);
entityObjectTableService.createNewRowInDB(newTableRowObject );
target.add(listViewContainer);
}
};
In this code the listViewContainer is a WebMarkupContainer which contains a ListView holding the table rows.
When i click this AjaxLink a new object representing a row in my table is added to the database and then the container containing the ListView is being refreshed refreshing the ListView and the new empty object is being fetched from the DB and shown as a new row in my table at the end.
Depending on your structure maybe you are looking after disabling validation using setDefaultFormProcessing(true); - http://ci.apache.org/projects/wicket/apidocs/6.x/org/apache/wicket/markup/html/form/AbstractSubmitLink.html#setDefaultFormProcessing%28boolean%29
For now I write some kind of hack
First I set
addKnowledgeLink.setDefaultFormProcessing(false);
and next
BlockingAjaxSubmitLink<Object> addKnowledgeLink = new BlockingAjaxSubmitLink<Object>(
"link_knowledge_add") {
#Override
protected void onSubmit(AjaxRequestTarget target, Form<?> form) {
ChangeDataForm.this.process(this);
/* some code */
target.add(form.get(MY_CONTAINER_ID));
}
(...)
and my hack...
//HACK
public void process(IFormSubmitter object){
if (!isEnabledInHierarchy() || !isVisibleInHierarchy())
{
return;
}
// run validation
validate();
/*if (hasError())
{
// mark all children as invalid
markFormComponentsInvalid();
// let subclass handle error
callOnError(object);
}
else
{*/
// mark all children as valid
markFormComponentsValid();
// before updating, call the interception method for clients
beforeUpdateFormComponentModels();
// Update model using form data
updateFormComponentModels();
// validate model objects after input values have been bound
onValidateModelObjects();
if (hasError())
{
callOnError(object);
return;
}
// Form has no error
delegateSubmit(object);
//}
}
and I ovveride one method
#Override
protected void onError(){
super.onError();
this.updateFormComponentModels();
}
I know it is ugly solution but I couldn't figure out anything better..
And I couldn't shutdown feedback messages
I'm using GXT 3 to build a GridView that will display "incidents".
What I want to do is that when it renders it, I want some checkboxes to be checked, others to empty, according to the boolean in the database.
Below you have my code:
CheckBoxSelectionModel<IncidentDto> isIncidentCM = new CheckBoxSelectionModel<IncidentDto>(incidentProperties.incident());
allColumns.add(isIncidentCM.getColumn());
ColumnModel<IncidentDto> columnModel = new ColumnModel<IncidentDto>(allColumns);
final Grid<IncidentDto> grid = new Grid<IncidentDto>(store, columnModel);
grid.setSelectionModel(isIncidentCM);
add(grid);
And the IncidentProperties value provider:
IdentityValueProvider<IncidentDto> incident();
I'm not sure if you can bind the selection value to a boolean property, but you could add a listener to the Grid to update the checkboxes based on the boolean condition.
grid.addBeforeShowHandler(BeforeShowEvent event) {
#Override
public void onBeforeShow(BeforeShowEvent event) {
List<IncidentDto> itemsToSelect = new ArrayList<IncidentDto>();
for (IncidentDto incident : store.getAll()) {
if (incident.getBooleanProperty()) { //whatever your property is called
itemsToSelect.add(incident);
}
}
isIncidentCM.setSelection(itemsToSelect);
}
}
There may be other implications in using a BeforeShowEvent depending on how/when you populate your store, render the grid, etc. but assuming your store is fully loaded and the property available from your store objects I believe this should accomplish your goal.
I have this situation , i want to delete the objects in this celltable whose checkbox is Check on the clik of this "Delete" Button ,
Any idea how to get those objects whose checkbox is checked in this cellTable, when i click the delte button ..
Thanks
#junaidp, As you haven't provided any code, I'm assuming that you have used CheckBoxCell to generate checkbox column and assigned MultiSelectionModel to your cellTable. You can use the following code:
Set<T> selectedObjects = ((MultiSelectionModel<T>)(cellTable.getSelectionModel())).getSelectedSet();
Here selectedObjects will be of type T, that you should have specified as CellTable<T>.
selectedObjects will be objects, associated to checked rows only.
You can check for a given cell's selected status with:
Column<CellInfo, Boolean> checkColumn =
new Column<MemberInfo, Boolean>(new CheckboxCell(true, false)) {
public Boolean getValue(CellInfo object) {
// Get the value from the selection model.
return selectionModel.isSelected(object);
}
};
If your requirement with delete single row, then You can use SingleSelectionModel otherwise MulitiSelectionModel in celltable. I have written some code with single selection model,It may give some idea. i.e.
selectionModel = new SingleSelectionModel<T>();
cellTable.setSelectionModel(selectionModel) //Set into your cellTable:
When you select a checkbox, then row will auto selected and object will set in to selection model.
CheckboxCell checkboxCell=new CheckboxCell(true, false);
Column<T, Boolean> boolColumn=new Column<T, Boolean>(
checkboxCell) {
#Override
public Boolean getValue(T object) {
return selectionModel.isSelected(object);
}
};
On delete button click,use selected object,It will provide you a object for delete.
selectionModel.getSelectedObject();
I am using the following constructor to create a checkboxcell in an editable data grid.
CheckboxCell(false, true)
When I use this and click at any place in the row, selection change event does not fire and I am using single selection model .
When I use,
CheckboxCell();
Selection change event fires on the row but,
1) We have click twice to check or uncheck the cell.
2) if we check or uncheck in the checkboxcell, the value will reverted as soon as I click anywhere.
I am trying to figure out the solution, but not successful yet. Any help would be appreciated.
Am using GWT 2.4.0
The problem is because of selection if possible do not use selection model. and add field updater for the column of check box. I have used this:
Column< GridReportFields, Boolean > cb = new Column< GridReportFields, Boolean >(new CheckboxCell() ) {
#Override
public Boolean getValue(GridReportFields object) {
// TODO Auto-generated method stub
return object.getCheckb();
}
};
cb.setFieldUpdater(new FieldUpdater<GridReportFields, Boolean>() {
#Override
public void update(int index, GridReportFields object, Boolean value) {
// TODO Auto-generated method stub
object.setCheckb(value);
dataGrid.redraw();
}
});
here gridReport Field is my model class. and setCheckb is is setter for the boolean variable that holds the value of checkbox.