Bug 19818 - Parent changed when trying to remove control that is not a child control
Summary: Parent changed when trying to remove control that is not a child control
Status: RESOLVED FIXED
Alias: None
Product: Class Libraries
Classification: Mono
Component: Windows.Forms ()
Version: 3.4.0
Hardware: PC Linux
: --- normal
Target Milestone: Untriaged
Assignee: Bugzilla
URL:
Depends on:
Blocks:
 
Reported: 2014-05-15 11:14 UTC by eb1
Modified: 2014-05-15 16:10 UTC (History)
2 users (show)

Tags:
Is this bug a regression?: ---
Last known good build:

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Status:
RESOLVED FIXED

Description eb1 2014-05-15 11:14:01 UTC
When trying to remove a control from a controls collections and the control is not part of the controls collection then nothing should happen. However the parent of the control still gets set to null.

var c1 = new Control();
var c2 = new Control();
var c3 = new Control();

c2.Controls.Add(c3);
c1.Controls.Add(c2);

Debug.Assert(c3.Parent == c2);

c1.Controls.Remove(c3);
Debug.Assert(c3.Parent == c2); // this assertion currently fails
Comment 1 eb1 2014-05-15 11:31:56 UTC
Suggested fix in PR #1038
Comment 2 Miguel de Icaza [MSFT] 2014-05-15 16:10:34 UTC
Thanks, the patch has been applied