C# TreeView – CheckBox – Double Click – BUG – for VISTA and Win7

This bug arises in Vista and Win7 whenever you double click on the TreeView item checkbox. Double click will not fire any even but it will change the check status of that item which leads to inconsistent behavior of TreeView item checking.

Solution : use this  NewTreeView class instead of TreeView default class.

using System;
using System.Windows.Forms;

public class NewTreeView : TreeView {
protected override void WndProc(ref Message m) {
 if (m.Msg == 0x203) { m.Result = IntPtr.Zero; }
 else base.WndProc(ref m);
 }
}