Yes, I found the property. It's the DrawBorderShadow = False property. I didn't see the property before because I didn't cast the Editor as an EmbeddableImageRenderer.

What images are you referring to?

If you have a column with image values and you are using an EmbeddableImageRenderer to display the cell value as an image, then I think the EmbeddableImageRenderer shows the shadow by default. But I'm sure there's a property on the EmbeddableImageRenderer to turn it off.

That works great. My images have a shadow? Where is the property to turn off the shadow?

Oops. Sorry, I was thinking you were using WinGrid instead of WinTree. :)

So I assume you are adding your unbound column in the ColumnSetGenerated event. The tree uses a GridBagLayout for it's nodes. So you would do something like this:

column.LayoutInfo.OriginX = 0;

What is a "column"? I can't find the Header property anywhere in the UltraTree object model.

For example, UltraTree.ColumnSet.Columns[0].Header doesn't exist.