Repositioning SelectedNode After Reordering TreeView Nodes in AfterLabelEdit Event

Question

This was a very helpful link for sorting TreeView Nodes in AfterLabelEdit event. It works great. The only problem is that it changes SelectedNode and TopNode to the Root. How can I get it to be the Node that was originally selected (now with a new text value) AND with TopNode set as it was before sorting?

Here is what my code looks like now:

Private Sub tvInventory_AfterLabelEdit(sender As Object, e As System.Windows.Forms.NodeLabelEditEventArgs) Handles tvInventory.AfterLabelEdit
        tvInventory.BeginInvoke(New MethodInvoker(AddressOf tvInventory.Sort))
        e.CancelEdit = False
End Sub

I tried adding code to set the tvInventory.SelectedNode and tvInventory.TopNode values inside the AfterLabelEdit event handler but they are just ignored.

Ebassador Ebassador · Accepted Answer · 2014-05-01T22:37:07

The answer was staring me in the face all along! Use the same BeginInvoke method to restore my place outside the AfterLabelEdit event handler! Final code looks like this:

Private Sub tvInventory_AfterLabelEdit(sender As Object, e As System.Windows.Forms.NodeLabelEditEventArgs) Handles tvInventory.AfterLabelEdit
    SaveMyPlace()
    tvInventory.BeginInvoke(New MethodInvoker(AddressOf tvInventory.Sort))
    tvInventory.BeginInvoke(New MethodInvoker(AddressOf RestoreMyPlace))
    e.CancelEdit = False
End Sub

Private Sub SaveMyPlace()
    SavedSelectedNode = tvInventory.SelectedNode
    SavedTopNode = tvInventory.TopNode
End Sub

Private Sub RestoreMyPlace()
    tvInventory.SelectedNode = SavedSelectedNode
    tvInventory.TopNode = SavedTopNode
End Sub

Repositioning SelectedNode After Reordering TreeView Nodes in AfterLabelEdit Event

1 Answers