MDI open tab on item drag

Question

so I'm having some trouble with opening the tab to where I want to drag some data.

I have 2 child MDI forms, with both a listview. I would like to drag a listviewitem from mdichild 1 to mdichild 2.

The problem is that I am not able to find the correct event that makes it possible to SHOW the second form when I drag my data to the corresponding MDI tab.

Right now the only thing I get when I drag data to a MDI tab is the standard black circle with a stripe through it.

Any ideas on how to open the tab?

All help is appreciated

Have you checked that the AllowDrop property is true for the target? — J...
Yes, but the tab doesn't belong to the target form it seems. — voluminat0
Yes. I can detect a dragover in the MDI now, but this gets triggerd as soon as i leave my first listview, not when I hover a tab — voluminat0
Perhaps show some code, then. You have to handle all of the drag events properly for this to work. Show us what you have so far - specifically what is in the ItemDrag, DragEnter, DragDrop, etc, handlers for the relevant controls. — J...

J... J... · Accepted Answer · 2013-03-26T13:56:50

It is difficult to tell without code where you problem is, but could it be as simple as this?

Private Sub MDIChildForm_DragEnter(sender As System.Object, e As _
              System.Windows.Forms.DragEventArgs) Handles MyBase.DragEnter
    Me.Activate()
    Me.WindowState = FormWindowState.Normal
End Sub

This will un-minimize and activate the child form when you drag over it. This is assuming your "Tab" is a minimized MDI child form...

MDI open tab on item drag

1 Answers