[Mono-bugs] [Bug 399582] New: TabControl: rows of tabs disappear in Bottom and Right alignment modes

[bugzilla_noreply at novell.com]

https://bugzilla.novell.com/show_bug.cgi?id=399582


           Summary: TabControl: rows of tabs disappear in Bottom and Right
                    alignment modes
           Product: Mono: Class Libraries
           Version: 1.9.0
          Platform: Other
        OS/Version: Other
            Status: NEW
          Severity: Normal
          Priority: P5 - None
         Component: Windows.Forms
        AssignedTo: mono-bugs at lists.ximian.com
        ReportedBy: andyhume32 at yahoo.co.uk
         QAContact: mono-bugs at lists.ximian.com
          Found By: ---


Created an attachment (id=221716)
 --> (https://bugzilla.novell.com/attachment.cgi?id=221716)
Repro app

In Bottom and Right alignment modes, when tab buttons are clicked a rows of
tabs disappears.

I *presume* that the previous 'first' row is appended to the new first row,
instead it being moved to a row 'above'.  At least, each of the original tabs
can be selected by right-arrow keypresses.

Present in SVN but can't easily test in 1.9 or earlier as PropertyGrid there
can't load a TabControl object ((bug 374334)).


Repro in PropGridFormControlsTabView app.
1. Select the second item in the combobox on the grid window -- it controls the
main window's TabControl.
2. Set Aligment=Bottom.
See multiple rows of tab buttons at the bottom of the main window.
3. Now click on some of the tab buttons.
Every click of a button (except on the first i.e. bottom row) causes a row of
tabs to disappear!!
4. Ends with only one row visible.

Same for Alignment=Right, ends up with one row at the the left of the
sub-panel.


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