add/delete listgrid by clicking +/- image button - gwt

I need a listgrid with +/- button so that I can use these buttons for adding or deleting list grid.
ListGrid listGrid = new ListGrid();
listGrid.setWidth(230);
listGrid.setHeight(224);
listGrid.setDataSource(coursesDS);
listGrid.setCanDragRecordsOut(true);
listGrid.setDragDataAction(DragDataAction.COPY);
In this way only listgrid will be created, but is there any implicity functionality for increment listgrid by providing button specific to listgrid?
Or I need to create explicitly image button and have to write code so that I can add number of listgrids when click on image(add) button?
Please help. Thanks.

Regarding the "-" icon:
listGrid.setCanRemoveRecords(true);
Creates an additional rightmost column with "-" icon to remove the current row of the listGrid.
The closest I could find to "+" is in this example:
http://www.smartclient.com/smartgwt/showcase/#grid_editing_new_row
listGrid.startEditingNew();
in the example the line is executed from onClick function inside ClickHandler for additional button.

Related

Ag-Grid expand row

Im using Ag-grid to control my table, but i want in my group that stores a list of rows instead of having to make the row group expand in 2 clicks, i want to be on 1 click.
If i click on the icon arrow it works, but if i click on the title row it only opens on 2 clicks.
I already tried to find in the documentation any information about it, but cant find nothing.
Here is a example from the documentation.
https://ag-grid.com/javascript-grid-tree/index.php
example image:
We are now recommended not to use the onGroupExpandedOrCollapsed, so this should now be...
This will also update the icons and animate the rows, which onGroupExpandedOrCollapsed won't.
onRowClicked(params) {
params.node.setExpanded(!params.node.expanded);
}
This will toggle the expansion, use params.node.setExpanded(true) if you want the rows to just stay open.
You can listen to events on either a row or cell clicked, and expand nodes accordingly.
For example to expand a row based on a click you could do the following:
onRowClicked: (params) => {
// update the node to be expanded
params.node.expanded = true;
// tell the grid to redraw based on state of nodes expanded state
gridOptions.api.onGroupExpandedOrCollapsed(params.rowIndex)
}
This should be in the documentation - I'll update it to reflect this information.
In the column definition, you can use the onCellClicked(params) function to tell it to do something when the cell is clicked. I tried looking for an expand function, but I could only find expandAll() which I don't think you will want. So what I would do is just use jquery or simple DOM selection to click on the expand icon inside of that cell.
this one works
onRowClicked(params) {
params.context.setExpand.onExpandClicked(params.rowIndex, params.node.rowHeight);
}

Not able add combobox as edittor for a combobox cell GXT 3.1.2

I want to add a combobox in my grid, which would populate its store(of grid) as user provide the word.
If i am adding a custom abstract cell in to grid, I can able to add combobox as edittor to it. But when i am trying to use combobox cell (need to display text in a input tag/ Editable), Combobox is not adding to Grid.
Mean to say when I click on that column, it's not converting to combobox.
Tried with adding keyuphandler to addHandler method. But It's not coming to that handler.

save data to popupmenu

I have a popup-menu that has an option, add own material, and when this is chosen, a pushbutton is enabled that say SAVE. I alose have a bunch of edit-boxes.
What I want to do is to make a callback so whenever I click the SAVE, the data from one of the textboxes will possible to select in the popupmenu. when this is selected, I want to set the other edit-boxes to contain the same data that they did when I clicked the save button.
Thanks in advance
I'm not quite sure to fully understand what you want, but you can use the handle of the popup menu to get the string/string array in contains at the time you press the pushbutton. Then you can put those inside the textboxes using their handles as well.
For instance:
MyStrings = get(handlesToYourPopupMenu,'String');
or
MyStringsArray = cellstr(get(handlesToYourPopupMenu,'String'));
which contains the content of the popup menu as a cell array.
and
set(handlesToYourEditBox,'String',MyString);
Is that what you mean? If not please ask :)
EDIT:
To add the new data to the existing content of your text box, use concatenation. Since the content is in a cell array, you can do the following:
NewString = [OldString {CurrentString}];
where CurrentString is obtained with
get(hanlesToYourEditBox,'String');
Therefore to update the content of the popup menu you could write this:
set(handlesToPopUpMenu,'String',[MyStringsArray {get(hanlesToYourEditBox,'String')}]):

In GWT need to set the value of list box to the one,that was was selected in other selection

I have a full search panel with listbox whose value are read from DB.when a item in listbox selected and search is made.If the results are not found the search panel is condensed (one more search panel) and in condensed search ,we can change the search criteria ,selected a different item in the list box .after changing the search criteria and if search is made ,when the full search panel appears,the value of the list box in full search panel should be same as the one changed/selected in the condensed search panel.
How can we accomplish this.
In simple - If i have two list boxes, load a list box and set the value of the listbox same the other listbox.If value of one listbox is changed, the other should be changed and the value of this listbox is set with the value selected in the previous one.
I would do the following
//you have something like this
ListBox listbox1;
ListBox listbox2;
//add a change handler
listbox1.addChangeHandler(new ChangeHandler() {
#Override
public void onChange(ChangeEvent event)
{
int index = listbox1.getSelectedIndex();
//do your update code here for listbox2
//like a listbox2.setSelectedIndex(index) or something
}
As far as I see its an easy implementation. Add a value change handler on the first listbox and do whatever you want in onChange method.
Regarding your panel need to be collapsed when there is no search results, you can always use vertical panel and set its height to 100% and add another panel to it or Use Dock Panel and add panels to south or best use disclosure panel and play around with it.

How to add a custom selection Handler to a celltable

I want to add a special selection model to the celltable. Basically the function i want to have is to select a row on the table which is located on left side, a corresponding form will pop up on the right side.
I know so many people will use the singleSelectionModel with SelectionChangeHandler.
But there is problem with this method.
For example, if I select row 1 on the table. the form pop up. I close the form by clicking the close-button. Later then, I select the row 1 again, the event is not fired, because it is SelectionChangeHandler. I have to select other row before doing this. This is no good.
So I think there are a few ways to do this:
Make the row deselected right after I select the row.
Use click handler to fire the event ( to pop up the form)
Use other selection model with other selection handler to do this. (I have no ideas about this though)
So my questions are,
Does anyone know what kind of other selection handler I can use for this.
If I use the click handler on celltable, will there be any problem?
I just want to learn more about this. So any ideas will be welcome.
Thanks a lot.
Best Regards.
Use NoSelectionModel. It won't update the table view after the row is selected. That is, even if the same row is selected, the change event is fired.
//Here 'Contact' is the datatype of the record
final NoSelectionModel<Contact> selModel = new NoSelectionModel<Contact>();
selModel.addSelectionChangeHandler(new Handler() {
#Override
public void onSelectionChange(SelectionChangeEvent event) {
Contact clickedObject = selModel.getLastSelectedObject();
GWT.log("Selected " + clickedObject.name);
}
});
table.setSelectionModel(selModel);
I have using cell table in my each project. The better way to just deselect row manually as u mention. and make change css such as selected cell table's row look not changed after selection.