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Home » Eclipse Projects » Standard Widget Toolkit (SWT) » Do not allow to check grayed checkboxes in CheckboxTableViewer
Do not allow to check grayed checkboxes in CheckboxTableViewer [message #465929] Fri, 23 December 2005 02:15
Vladimir Grishchenko is currently offline Vladimir GrishchenkoFriend
Messages: 7
Registered: July 2009
Junior Member
Howdy,

Not exactly a SWT question but I thought I'd ask it here. What is the best
way to prevent checking of grayed elements when using a CheckboxTableViewer?
My solution below which seem to work is to revert the state to unchecked for
grayed elements. Is there a more elegant way of doing it? I want to avoid
subclassing CheckboxTableViewer as "it is not intended to be subclassed
outside the viewer framework".

cbTableViewer.addCheckStateListener(new ICheckStateListener() {
public void checkStateChanged(CheckStateChangedEvent event) {
if (cbTableViewer.getGrayed(event.getElement()) && event.getChecked()) {
cbTableViewer.setChecked(event.getElement(), false);
return;
}
//process check state change
}
});

Thanks,
Vlad.
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