Thank you for writing.
In order to make the RadTreeView
transparent and display the BackgroundImage
of the form, you can use the following code snippet:
.BackgroundImage = Properties.Resources.Koala;
.radTreeView1.BackColor = Color.Transparent;
.radTreeView1.TreeViewElement.BackColor = Color.Transparent;
I hope this information helps. Should you have further questions I would be glad to help.
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