[Mono-bugs] [Bug 82040][Nor] New - [Win32] TableLayoutPanel: NullReferenceException when no children are added

[bugzilla-daemon at bugzilla.ximian.com]

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Changed by gert.driesen at pandora.be.

http://bugzilla.ximian.com/show_bug.cgi?id=82040

--- shadow/82040	2007-07-08 08:12:12.000000000 -0400
+++ shadow/82040.tmp.11268	2007-07-08 08:12:12.000000000 -0400
@@ -0,0 +1,67 @@
+Bug#: 82040
+Product: Mono: Class Libraries
+Version: 1.2
+OS: 
+OS Details: Windows XP SP2
+Status: NEW   
+Resolution: 
+Severity: 
+Priority: Normal
+Component: Windows.Forms
+AssignedTo: toshok at ximian.com                            
+ReportedBy: gert.driesen at pandora.be               
+QAContact: mono-bugs at ximian.com
+TargetMilestone: ---
+URL: 
+Cc: 
+Summary: [Win32] TableLayoutPanel: NullReferenceException when no children are added
+
+When no child controls are added to a TableLayoutPanel, then a NRE is 
+thrown when it s painted.
+
+To reproduce, compile and run the attached code snippet.
+
+Expected result:
+
+Successful execution.
+
+Actual result:
+
+Unhandled Exception: System.NullReferenceException: Object reference not 
+set to an instance of an object
+
+at System.Windows.Forms.TableLayoutPanel.OnPaintBackground 
+(System.Windows.Forms.PaintEventArgs) <0x001c9>
+at System.Windows.Forms.Control.WmPaint (System.Windows.Forms.Message&) 
+<0x000e9>
+at System.Windows.Forms.Control.WndProc (System.Windows.Forms.Message&) 
+<0x00165>
+at System.Windows.Forms.ScrollableControl.WndProc 
+(System.Windows.Forms.Message&) <0x0000d>
+at ControlWindowTarget.OnMessage (System.Windows.Forms.Message&) <0x00014>
+at ControlNativeWindow.WndProc (System.Windows.Forms.Message&) <0x00023>
+at System.Windows.Forms.NativeWindow.WndProc 
+(intptr,System.Windows.Forms.Msg,intptr,intptr) <0x0015a>
+at System.Windows.Forms.XplatUIWin32.InternalWndProc 
+(intptr,System.Windows.Forms.Msg,intptr,intptr) <0x00046>
+at (wrapper native-to-managed) 
+System.Windows.Forms.XplatUIWin32.InternalWndProc
+ (intptr,System.Windows.Forms.Msg,intptr,intptr) <0x0004d>
+in (unmanaged) 7E418733
+at (wrapper managed-to-native) 
+System.Windows.Forms.XplatUIWin32.Win32DispatchMessage 
+(System.Windows.Forms.MSG&) <0x00004>
+at System.Windows.Forms.XplatUIWin32.DispatchMessage 
+(System.Windows.Forms.MSG&)
+ <0x0000a>
+at System.Windows.Forms.XplatUI.DispatchMessage 
+(System.Windows.Forms.MSG&) <0x00015>
+at System.Windows.Forms.Application.RunLoop 
+(bool,System.Windows.Forms.ApplicationContext) <0x0091a>
+at System.Windows.Forms.Form.ShowDialog 
+(System.Windows.Forms.IWin32Window) <0x00299>
+at System.Windows.Forms.Form.ShowDialog () <0x0000c>
+at (wrapper remoting-invoke-with-check) 
+System.Windows.Forms.Form.ShowDialog ()
+<0x00038>
+at Program.Main () <0x00191>