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<TITLE> [Mono-bugs] [Bug 425342] New: ListView: Remove Item while enumerating
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<H1>[Mono-bugs] [Bug 425342] New: ListView: Remove Item while enumerating</H1>
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<B>bugzilla_noreply at novell.com</B>
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<A HREF="mailto:mono-bugs%40lists.ximian.com?Subject=%5BMono-bugs%5D%20%5BBug%20425342%5D%20New%3A%20ListView%3A%20Remove%20Item%20while%0A%09enumerating&In-Reply-To="
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TITLE="[Mono-bugs] [Bug 425342] New: ListView: Remove Item while enumerating">bugzilla_noreply at novell.com
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</A><BR>
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<I>Wed Sep 10 21:27:50 EDT 2008</I>
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<PRE><A HREF="https://bugzilla.novell.com/show_bug.cgi?id=425342">https://bugzilla.novell.com/show_bug.cgi?id=425342</A>
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Summary: ListView: Remove Item while enumerating
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Product: Mono: Class Libraries
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Version: 2.0
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Platform: i386
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OS/Version: All
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Status: NEW
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Severity: Normal
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Priority: P5 - None
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Component: Windows.Forms
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AssignedTo: <A HREF="http://lists.ximian.com/mailman/listinfo/mono-bugs">mono-bugs at lists.ximian.com</A>
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ReportedBy: <A HREF="http://lists.ximian.com/mailman/listinfo/mono-bugs">johnm at hlaustralia.com.au</A>
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QAContact: <A HREF="http://lists.ximian.com/mailman/listinfo/mono-bugs">mono-bugs at lists.ximian.com</A>
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Found By: DeveloperNet
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Description of Problem:
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If you are enumerating through the ListView.Items collection and remove an
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item, the next iteration will result in a System.InvalidOperationException
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Steps to reproduce the problem:
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using System;
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using System.Windows.Forms;
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public class test
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{
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static void Main ()
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{
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Form f = new Form ();
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ListView lv = new ListView();
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for (int i = 0; i < 20; i++)
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{
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ListViewItem item = lv.Items.Add("Item");
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if (i % 2 == 0)
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item.Tag = "DELETEME";
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else
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item.Tag = String.Empty;
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}
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foreach (ListViewItem item in lv.Items)
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{
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if (item.Tag.Equals("DELETEME"))
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{
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lv.Items.Remove(item);
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}
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}
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Console.Write(String.Format("Items = {0}, Expected=10",
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lv.Items.Count));
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lv.Parent = f;
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Application.Run (f);
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}
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}
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Actual Results:
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Exception is raised.
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Expected Results:
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The Item is Deleted (this works in MS.NET, Visual Studio 2005) and the
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iteration takes you to the next item.
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How often does this happen?
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Every Time.
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Additional Information:
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--
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Configure bugmail: <A HREF="https://bugzilla.novell.com/userprefs.cgi?tab=email">https://bugzilla.novell.com/userprefs.cgi?tab=email</A>
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------- You are receiving this mail because: -------
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You are the QA contact for the bug.
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You are the assignee for the bug.
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</PRE>
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