How to Create ProUITreeColumns
Hi guys,
I want create a model tree like this post mention.
In this few days study, I can create new nodes in ProUITree object via ProUITreeNodeAdd().
But, when i try to add column, ProUITreeColumnCreate("dialog","mytree","column1",label,PROUITREECOL_LEFT) doesn't add the new column as expected, api return PRO_TK_NO_ERROR, can anyone give me some tip?
thank for help in advance.

