Dropping a row where indicator is, and shifting rest of rows downward

[Arnaud_N]

@Niles_Mitchell

Seems to be a good match for Xojo’s Highlight color in a listbox.

As long as the user’s highlight colour is actually blue.
See here:

The problem with listbox.CellBackgroundPaint

That is not true. With the introduction of the ColorGroup class in 2019r3, it is possible to access the native color values. ' Highlight Color (active) g.DrawingColor = ColorGroup.NamedColor("selectedContentBackgroundColor") ' Highlight Color (inactive) g.DrawingColor = ColorGroup.NamedColor("unemphasizedSelectedContentBackgroundColor")

@Niles_Mitchell

My issues: At launch, there is a row already highlighted on the left.

You mean “on the right”, correct? Your screenshot doesn’t show a selection in your left listbox.

@Niles_Mitchell

Next, when I drop a row, it stays highlighted. I’d like to figure out how to remove the highlight after the drop.

What about setting me.Listindex=-1 in the DropObject?

@Niles_Mitchell

ClearRectangle changes the row color to the window color instead of the Listbox color, which is white.

Then add argue you could fill a white rectangle

@Niles_Mitchell

not sure how to trigger that after the drop, because I can’t call graphics from something like the MouseUp event.

Maybe I’ve not followed all this thread, but you could do this in the drop event, at the very end:
DroppedRow=-1
me.invalidateCell(-1,-1) 'Or was it “RefreshCell(-1,-1)” in API1? I don’t remember.

The listbox would refresh, and since DroppedRow=-1, your code is responsible to not draw the blue highlight.