[Mono-bugs] [Bug 360666] New: PropertyGrid: messagebox infinite loop when unsupported type

bugzilla_noreply at novell.com bugzilla_noreply at novell.com
Mon Feb 11 11:51:31 EST 2008


           Summary: PropertyGrid: messagebox infinite loop when unsupported
           Product: Mono: Class Libraries
           Version: SVN
          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: ---

I presume it applies to all unsupported types but I've only seen it in the case
here.  Repro program is attached (in VB for variety -- easily convertible if

The repro creates a simple form with a PropertyGrid, ComboBox and StatusStrip. 
The combo changes the PG to display one of the controls.  Selecting the
StatusStrip control causes a sequence of message-boxes with content:
Properties Window
Unable to load UITypeEditor for property 'Items'.

Sometimes hitting OK simply displays the same dialog repeatdly, thus one has to
kill the program externally.  Sometimes the sequence is shorter, e.g. 4 long.

I guess there's always the possibility of an unsupported type and thus we need
to degrade gracefully.

BTW the property Items has type ToolStripItemCollection.  So implementation of
that required sometime...

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