Professional UI Solutions
Site Map   /  Register


Please Log In to post a new message or reply to an existing one. If you are not registered, please register.

NOTE: Some forums may be read-only if you are not currently subscribed to our technical support services.

Forums » Prof-UIS Tech Support » Support please!!! Grid drag & drop - recycle bin Collapse All
Subject Author Date
Alastair Watts Nov 25, 2011 - 12:13 AM

How do I prevent cells being dragged from a grid and dropped into the recycle bin?

Alastair Watts Dec 14, 2011 - 12:44 PM

I’m not sure I fully understand what your saying.

All I want to do is to stop cells being deleted from the grid when a user drops them into the recycle bin, is this possible?

Alastair Watts Dec 12, 2011 - 6:44 AM

Do you have a sample showing how to prevent CExtGridWnd drag and drop from deleting cells into the recycle bin?

Technical Support Dec 14, 2011 - 11:24 AM

We tried to prevent drag-n-dropping into Recycle Bin and we can detect the drop event into it, but we cannot detect drag-enter/drag-over events. I.e. we cannot find a way to detect when drag-n-droped content is not dropped yet but the mouse cursor is already over Recycle Bin’s icon.

Alastair Watts Nov 29, 2011 - 4:17 AM

’.. & this seems to work’ ... just to clarify I still can’t stop a user from dragging cells to the recycle bin!

Alastair Watts Nov 29, 2011 - 4:09 AM

I call CExtGrid::AdvModifyStyle(_EGWS_ADV_ENABLE_DATA_DND_DRAG, 0, false) to enable grid drag.  I’ve implemented COleDropTarget in another control & this seems to work.  The methods you mention are not called, what could be wrong?


Technical Support Nov 28, 2011 - 1:45 PM

Here is how to detect Recycle Bin:
You can detect it in the overriden CExtGridWnd::OnGridDropTargetDragOver(), CExtGridWnd::OnGridDropTargetDrop() and CExtGridWnd::OnGridDropTargetDropEx() virtual methods.