Bug 33183 - Unexpected behavior can occur when horizontal or vertical scrollbar value changes in TreeView
Summary: Unexpected behavior can occur when horizontal or vertical scrollbar value cha...
Status: RESOLVED FIXED
Alias: None
Product: Class Libraries
Classification: Mono
Component: Windows.Forms ()
Version: 3.4.0
Hardware: PC Linux
: --- normal
Target Milestone: Community
Assignee: Bugzilla
URL:
Depends on:
Blocks:
 
Reported: 2015-08-18 01:20 UTC by daspits
Modified: 2017-09-01 12:16 UTC (History)
3 users (show)

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

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Status:
RESOLVED FIXED

Description daspits 2015-08-18 01:20:05 UTC
When the horizontal or vertical scrollbar value is changed in TreeView, the EndEdit() method is always called even if not currently editing a node. EndEdit() always calls Application.DoEvents() which can cause strange behavior in some cases. It seems that the Application.DoEvents() call is necessary to deal with a focus issue when editing a label, which is not happening in this case. The proposed solution would be to only call EndEdit() in the VScrollBarValueChanged() or HScrollBarValueChanged() methods if the edit_node variable is not null.
Comment 1 eb1 2016-01-29 22:03:48 UTC
Suggested fix in https://github.com/mono/mono/pull/2547