[Mono-bugs] [Bug 78821][Nor] New - Databound TextBox crashes

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Changed by roger.jakobsson at jorosoft.se.

http://bugzilla.ximian.com/show_bug.cgi?id=78821

--- shadow/78821	2006-07-11 14:16:03.000000000 -0400
+++ shadow/78821.tmp.9484	2006-07-11 14:16:03.000000000 -0400
@@ -0,0 +1,66 @@
+Bug#: 78821
+Product: Mono: Class Libraries
+Version: 1.1
+OS: other
+OS Details: Ubuntu
+Status: NEW   
+Resolution: 
+Severity: 
+Priority: Normal
+Component: Windows.Forms
+AssignedTo: peter at novonyx.com                            
+ReportedBy: roger.jakobsson at jorosoft.se               
+QAContact: mono-bugs at ximian.com
+TargetMilestone: ---
+URL: 
+Summary: Databound TextBox crashes
+
+Description of Problem:
+Simple DataTable bound to a TextBox crashes with NullReferenceException
+
+Steps to reproduce the problem:
+1. Compile the following:
+
+using System;
+using System.Drawing;
+using System.Windows.Forms;
+using System.Data;
+
+namespace BindingTest060711
+{
+	class Form1 : Form						
+	{
+		static void Main() 
+		{
+			Application.Run(new Form1());
+		}
+
+		public Form1()		 
+		{
+			TextBox txt = new TextBox();
+			this.Controls.Add(txt);
+
+			DataTable tb = new DataTable("TestTable");
+			tb.Columns.Add("Col1");
+			tb.Rows.Add(new string[] {"row 1"} );
+
+			txt.DataBindings.Add("Text", tb, "Col1");
+		}		
+	}
+}
+
+2. Run in Mono/Linux
+3. Click or drag the form
+
+Actual Results:
+System.NullReferenceException: Binding.SetPropertyValue
+
+Expected Results:
+No crash when moving/clicking in form.
+The textbox should display the bound value, it's empty now.
+
+How often does this happen? 
+Always
+
+Additional Information:
+Tested in Ubuntu 6.06 with Mono from SVN as of today