Forum

Hi.

I would like to be notified when the user selects a property (either by clicking, or with arrow keys) in the property grid.
How do you do that?

Thanks.

The CExtPropertyGridCtrl control works like a container for all its child windows. When the selection changes in the active tree grid window, the property grid control performs selection synchronization in all the inactive tree grid windows and finally invokes the CExtPropertyGridCtrl::RedrawFocusDependentChildren() virtual method which you can override in your CExtPropertyGridCtrl-derived class. Your method should invoke the parent class method and analyze the focused property item in the active tree grid window using the following code:

CExtPropertyGridCtrl * pPGC = . . .
CExtPropertyGridWnd * pActiveTreeGrid = pPGC->GetActiveGrid();
       if( pActiveTreeGrid == NULL )
              return . . .
HTREEITEM hTreeItem = pActiveTreeGrid->ItemFocusGet();
       if( hTreeItem == NULL )
              return . . .
CExtPropertyItem * pPropertyItem =
              pActiveTreeGrid->PropertyItemFromTreeItem( hTreeItem );
       ASSERT_VALID( pPropertyItem );

Please note the pPropertyItem pointer variable can be either CExtPropertyValue or CExtPropertyCategory.

Thanks.