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I would like to be able to change grid cells with the cursor keys, while editing a cell, but not have the new cell go in to edit mode. I’ve tried using __EGWS_BSE_WALK, which when set turns on edit mode in the new cell and when not set disables movement with the cursor keys. How do I enable moving cells with the cursor keys, but not re-enable edit mode?

We are sorry for the delay with this reply. Unfortunately this behavior of focus/editing is not supported explicitly in CExtGridWnd. You can override the CExtGridWnd::OnGridCellInplaceControlWindowProc() virtual method in your CExtGridWnd-derived class to intercept messages of the inplace active cell editor window. This will allow you to receive WM_KEYDOWN messages with wParam set to VK_UP or VK_DOWN. If these keys are pressed, then you should set the WM_CANCELMODE message to the hWndInplaceControl window handle specified in the parameters and set a new focused cell by invoking CExtGridWnd::FocusSet().