Tree Drag & Drop to a Multicolumn List Box

[Alwin_Capsys]

Hi,

I am trying to drag from a tree & drop to a multicolumn listbox.

While dragging, am getting the parameters and am adding those to the data.

               

But when am trying to drop it to the multicolumn listbox, it is showing elements in "Available data names". But, when when try to decode it, it is showing some error.

                

What will be the reason for this error? How can i rectify it?

[zou]

In image1, the drag data is a variant.

In image4, the data type is an array of string?

[Kyle97330]

Can you post your actual code?  Preferably back-saved to 2019 or so.

If the actual code is too large, maybe you could make a small example VI containing only the tree, listbox, and the drag code copied from your real code?