How to add images in 2005 windows programming

Any suggestions on how do I add images to a treeview.And also on how images change when tree node is expanded or closed.

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Luis PérezSoftware Architect in .NetCommented:
Use an ImageList component. Bind the ImageList to the treeview by setting the ImageList property of the Treeview. Of course, the images are set inside the ImageList control.

Each node of the treeview has 4 properties:
... that determines which image of the ImageList contents shows the node. You can set 1 global image (ImageIndex/ImageKey) and 1 for when the node is selected (SelectedImageIndex/SelectedImageKey).

Hope that helps.
RIASAuthor Commented:
Is it necessary to set SelectedImageKey?

Luis PérezSoftware Architect in .NetCommented:
No, if you don't set it then the ImageKey is used for both modes (selected / unselected). In fact, where you add nodes to the treeview, several of the many constructors of Treeview.Nodes.Add function admits directly an ImageIndex (but none of them admits SelectedImageIndex, if I remember it well).
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RIASAuthor Commented:
Cheers mate will give a try
RIASAuthor Commented:
The images are fine but still can't expanded and closed nodes images to change
Luis PérezSoftware Architect in .NetCommented:
Well, the node has ImageIndex and SelectedImageIndex. This means that each node admits 2 images, one for selected and one for not selected. The selected image is not necessary.

But "selected" is not the same as "expanded". You can expand a node and not select it. If you want to change the node image specifically when it expands/collapse, the you must to do programatically, using the "AfterExpand" and "AfterCollapse" events:

    Private Sub TreeView1_AfterExpand(ByVal sender As Object, ByVal e As System.Windows.Forms.TreeViewEventArgs) Handles TreeView1.AfterExpand
        e.Node.ImageIndex = [index_of_the_image_you_want_when_node_is_expanded]
    End Sub

    Private Sub TreeView1_AfterCollapse(ByVal sender As Object, ByVal e As System.Windows.Forms.TreeViewEventArgs) Handles TreeView1.AfterCollapse
        e.Node.ImageIndex = [index_of_the_image_you_want_when_node_is_collapsed]
    End Sub

Hope that helps.

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RIASAuthor Commented:
Cheers mate
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