avoid row selection on cell click in CellTable

[Torgeir]

I have a CellTable with a MultiSelectionModel, and a selection checkbox in the first column, just as the CellTree sample in the GWT ShowCase. I have a problem in that when clicking on a cell in the table, eg a Cell of type SafeHtmlCell, the row is selected.

I have tries using a different Column instance, and a different Cell instance, in order to avoid this selection, but nothing seems to work. Is there a way to only allow row selection through selecting items in the selection column?

[John LaBanca]

Selection is controlled by the selectionEventManager, which is is a CellPreviewEventHandler.  Use the following to limit selection to checkboxes:

DefaultSelectionEventManager selectionEventManager = DefaultSelectionEventManager.createCheckboxManager(0); // Limit selection to checkboxes in column 0.

cellTable.setSelectionModel(myMultiSelectionModel, selectionEventManager);

Thanks,
John LaBanca
jlab...@google.com

On Tue, Feb 1, 2011 at 7:39 AM, Torgeir <torgei...@gmail.com> wrote:

I have a CellTable with a MultiSelectionModel, and a selection checkbox in the first column, just as the CellTree sample in the GWT ShowCase. I have a problem in that when clicking on a cell in the table, eg a Cell of type SafeHtmlCell, the row is selected.

I have tries using a different Column instance, and a different Cell instance, in order to avoid this selection, but nothing seems to work. Is there a way to only allow row selection through selecting items in the selection column?

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[Torgeir]

Thx, I also just found that simply having my Cells implementing the handlesSelection method fixes it;

@Override public boolean handlesSelection() { return true; }

[David Sanders]

Thanks John!  -  I was looking to do something similar with a file download cell that I didn't want triggering selection events but pulled my hair out trying to find out how to disable the selection. Your suggestion worked a treat - I used the blacklist method.