Checkbox TreeGrid

[dhphuoc]

If you have a need to use a checkbox TreeGrid that works similarly as the TreePanel, and can't wait for the GXT v3.0, you may want to consider the attached custom TreeGrid. I am not aware of any issues with it at this time. You would use the CheckboxTreeGrid as you normally would with a TreeGrid, with the following difference configuration for the first column that contains the check boxes.

ColumnConfig name = new ColumnConfig("name", "Name", 300);
name.setRenderer(new CheckboxTreeGridCellRenderer<ModelData>(true));

Thanks,
Phil

[jonas sabu]

Hey,

I used your CheckBoxTreeGrid and it compiles and runs without errors.
The problem is that it doesn't show any checkboxes...

I do :

ColumnConfig name = new ColumnConfig("name", "Name", 100);
name.setRenderer(new CheckboxTreeGridCellRenderer<ModelData>());
ColumnModel cm = new ColumnModel(columns);

CheckboxTreeGrid<ModelData> tree = new CheckboxTreeGrid<ModelData>(store, cm);

Do i have to do anything else to show the checkboxes? Like in TreePanel we do .setCheckable(true) or something..

[dhphuoc]

Yes, you need to pass "true" to the renderer constructor:
name.setRenderer(new CheckboxTreeGridCellRenderer<ModelData>(true));

Phil

[jonas sabu]

Thanks alot, that was the problem.
You know if is it possible to add a checkbox to the grid's columns to select all the elements?

[dhphuoc]

Right now the checkbox tree grid follows the same cascade behaviors in a TreePanel, i.e. if you check a root node, all child nodes will be checked. So you may consider this feature as you build your tree store. Other than that, I don't know if what you are looking to do is possible or if it should be done that way. Good luck.

Phil

[denu]

Great work with the Checkboxes! Is there a way to set any other column renderer to return Widget?

greetz