[Mono-bugs] [Bug 512128] New: Scrolling a Listbox actualizes only bottom (or top) lines, not all

[bugzilla_noreply at novell.com]

http://bugzilla.novell.com/show_bug.cgi?id=512128


           Summary: Scrolling a Listbox actualizes only bottom (or top)
                    lines, not all
    Classification: Mono
           Product: Mono: Class Libraries
           Version: 2.4.x
          Platform: x86
        OS/Version: Windows XP
            Status: NEW
          Severity: Normal
          Priority: P5 - None
         Component: Windows.Forms
        AssignedTo: mono-bugs at lists.ximian.com
        ReportedBy: andreas.flucke at t-online.de
         QAContact: mono-bugs at lists.ximian.com
          Found By: ---


Created an attachment (id=297416)
 --> (http://bugzilla.novell.com/attachment.cgi?id=297416)
test.cs

User-Agent:       Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1;
Trident/4.0; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR
3.0.4506.2152; .NET CLR 3.5.30729)

When scrolling within a ListBox with up/down keys only the bottom (or top)
lines are actualized.
This leads to wrong mixing of items.
This applies also to ownerdraw modes.


Reproducible: Always

Steps to Reproduce:
1.compile and run attached test.cs
2.scroll down the ListBox with down key till end, scroll up till end
3.notice that the items get mixed up

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