[Mono-bugs] [Bug 76682][Nor] New - TreeView.Clear() disables click events

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Changed by atsushi at ximian.com.

http://bugzilla.ximian.com/show_bug.cgi?id=76682

--- shadow/76682	2005-11-12 10:34:50.000000000 -0500
+++ shadow/76682.tmp.32008	2005-11-12 10:34:50.000000000 -0500
@@ -0,0 +1,66 @@
+Bug#: 76682
+Product: Mono: Class Libraries
+Version: 1.1
+OS: 
+OS Details: 
+Status: NEW   
+Resolution: 
+Severity: 
+Priority: Normal
+Component: Windows.Forms
+AssignedTo: peter at novonyx.com                            
+ReportedBy: atsushi at ximian.com               
+QAContact: mono-bugs at ximian.com
+TargetMilestone: ---
+URL: 
+Cc: 
+Summary: TreeView.Clear() disables click events
+
+After TreeView.Clear(), click events (including non-user ones) are disabled.
+
+using System;
+using System.Drawing;
+using System.Windows.Forms;
+
+public class TestForm : Form
+{
+        public static void Main ()
+        {
+                Application.Run (new TestForm ());
+        }
+
+        TreeView tv = new TreeView ();
+
+        public TestForm ()
+        {
+                tv.Nodes.Add (new TreeNode ("node"));
+                tv.Nodes [0].Nodes.Add (new TreeNode ("child"));
+                Controls.Add (tv);
+                Click += new EventHandler (ResetTree);
+        }
+
+        void ResetTree (object o, EventArgs e)
+        {
+                tv.Nodes.Clear ();
+                tv.Nodes.Add (new TreeNode ("node-reset"));
+                tv.Nodes [0].Nodes.Add (new TreeNode ("child"));
+
+                // This will easily tell you what is happening here.
+                tv.ExpandAll ();
+        }
+}
+
+
+Steps to reproduce the problem:
+1. compile above and run.
+2. click the non-treeview area of the form.
+3. click tree expansion toggle ([+] or [-]).
+
+How often does this happen? 
+
+consistently.
+
+Additional Information:
+
+ExpandAll() in the source code is not required to reproduce the bug. It
+just tells you that the TreeView no longer changes its focus.