hello I'm using Visual Studio 2008 to write a windows program in C#, how can I make my tree view item movable in program? I've made a tabControl which currently has only one tab, and I've inserted a tree view control in this tab, but when I run program, I cannot move this tabControl (which contains my tree view), how can I make it movable? should I write code? or can I change some options? please help me, any tutorial or sample would also be well appreciated

Maybe u can try this "TabIndex" property to programmatically change the order:
http://msdn.microsoft.com/en-us/library/system.windows.forms.control.tabindex.aspx