Help with dragging from listview to treeview

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I am trying to adapt some code that I have where I drag and drop from two
treeview controls. Now I want to drag and drop from a listview to a treeview.
Whatever I do does not work and I cannot find any good articals on the net on
how to do so. I have attached my original code for the two treeview
controls. Can anybody point out where I need to make changes?


Dim NewNode As Windows.Forms.T reeNode
Dim imgIndex As Windows.Forms.T reeNode
If e.Data.GetDataP resent("System. Windows.Forms.T reeNode", False) Then
Dim pt As Drawing.Point
Dim destinationNode As Windows.Forms.T reeNode
pt = CType(sender, Windows.Forms.T reeView).PointT oClient(New
Drawing.Point(e .X, e.Y))
destinationNode = CType(sender,
Windows.Forms.T reeView).GetNod eAt(pt)
NewNode = CType(e.Data.Ge tData("System.W indows.Forms.Tr eeNode"),
Windows.Forms.T reeNode)
If Not destinationNode .Equals(NewNode ) Then

'now adding to the shs tree view
destinationNode .Nodes.Add(CTyp e(NewNode.Clone ,
Windows.Forms.T reeNode))
imgIndex = destinationNode
imgIndex.ImageI ndex = 2
imgIndex.Select edImageIndex = 2
'imgIndex.Tag = "U" & strStatus
destinationNode .Expand()

End If
End If

[Phill W.]

Re: Help with dragging from listview to treeview

Andrew wrote:

I am trying to adapt some code that I have where I drag and drop from two
treeview controls. Now I want to drag and drop from a listview to a treeview.

Can anybody point out where I need to make changes?

Imports System.Windows. Forms

Private Sub X_Drag*( ... ) Handles X.Drag*

Dim tv as TreeView = DirectCast( sender, TreeView )

' For a ListViewItem, you need to look for a /different/ Type
' (S.W.F.ListView Item) here

If e.Data.GetDataP resent("System. Windows.Forms.T reeNode", False) Then

' Isn't it annoying there's no e.Location?
Dim pt As Drawing.Point _
= tv.PointToClien t(New Drawing.Point(e .X, e.Y))

Dim destinationNode As TreeNode _
= tv.GetNodeAt( pt )

' You can't cast a ListViewItem into a TreeNode.
' You'll have to create a /new/ TreeNode and set it up
' based on the given ListViewItem (or TreeNode, if you
' want to support Drag-and-Drop within the Tree as well!
Dim NewNode As TreeNode _
= CType(e.Data.Ge tData("System.W indows.Forms.Tr eeNode") _
, TreeNode)

' Everything else should work as given ...

If Not destinationNode .Equals( NewNode ) Then

' If you're creating a new Node from a ListViewItem,
' the above will never be True, but anyway ...

Dim newIndex as Integer _
= destinationNode s.Nodes.Add( NewNode.Clone() )
NewNode = destinationNode .Nodes( newIndex )

With NewNode
.ImageIndex = 2
.SelectedImageI ndex = 2
End With

destinationNode .Expand()

End If
End If
End Sub

HTH,
Phill W.