[Mono-bugs] [Bug 76161][Maj] New - Handles for control containers
are created too early.
bugzilla-daemon at bugzilla.ximian.com
bugzilla-daemon at bugzilla.ximian.com
Tue Sep 20 02:53:23 EDT 2005
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Changed by miguel at ximian.com.
http://bugzilla.ximian.com/show_bug.cgi?id=76161
--- shadow/76161 2005-09-20 02:53:23.000000000 -0400
+++ shadow/76161.tmp.17312 2005-09-20 02:53:23.000000000 -0400
@@ -0,0 +1,65 @@
+Bug#: 76161
+Product: Mono: Class Libraries
+Version: unspecified
+OS:
+OS Details:
+Status: NEW
+Resolution:
+Severity:
+Priority: Major
+Component: Windows.Forms
+AssignedTo: peter at novonyx.com
+ReportedBy: miguel at ximian.com
+QAContact: mono-bugs at ximian.com
+TargetMilestone: ---
+URL:
+Cc:
+Summary: Handles for control containers are created too early.
+
+The following program should not print anything, instead it throws an
+exception.
+
+This is a reduced version of a more complex case which is making a popular
+Windows application crash on Mono as it never initializes completely before
+the handle is created.
+
+using System;
+using System.Drawing;
+using System.Windows.Forms;
+
+ class SearchBar : UserControl {
+ TextBox filterTextBox;
+ bool ready = false;
+
+ public SearchBar()
+ {
+ this.filterTextBox = new TextBox();
+ this.filterTextBox.TabIndex = 1;
+ this.filterTextBox.Dock = DockStyle.Fill;
+ this.Controls.Add(this.filterTextBox);
+ ready = true;
+ }
+
+ protected override void OnHandleCreated(EventArgs e)
+ {
+ base.OnHandleCreated(e);
+
+ if (!ready){
+ throw new Exception ("The handle is created
+before we are ready!");
+ }
+ }
+ }
+
+ class MainWindow : System.Windows.Forms.Form {
+ public MainWindow() {
+ SearchBar b = new SearchBar ();
+ ClientSize = new System.Drawing.Size (250, 250);
+ b.Dock = DockStyle.Fill;
+ this.Controls.Add(b);
+ }
+
+ public static void Main(string[] args) {
+ Application.Run(new MainWindow());
+ }
+ }
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