[Mono-bugs] [Bug 376081] New: Control should Invalidate children with transparent BackColor

[bugzilla_noreply at novell.com]

https://bugzilla.novell.com/show_bug.cgi?id=376081


           Summary: Control should Invalidate children with transparent
                    BackColor
           Product: Mono: Class Libraries
           Version: 1.9.0
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: Normal
          Priority: P5 - None
         Component: Windows.Forms
        AssignedTo: mono-bugs at lists.ximian.com
        ReportedBy: alex.conway at linea-research.co.uk
         QAContact: mono-bugs at lists.ximian.com
          Found By: ---


Description of Problem:

when a Control has children which have BackColor set to Color.Transparent or a
Colour with an alphablend component, the children do not get invalidated when
the parent is.


Steps to reproduce the problem:
1. compile and run the test case:
mcs -r:System.Windows.Forms,System.Drawing TransparentInvalidate.cs


Actual Results:
The Child label doesn't invalidate when the parent Form does


Expected Results:

The Chlid label should be invalidated when it's parent is


How often does this happen? 

always on mono


Additional Information:


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