Bug 1212 - [PATCH] CheckBoxes do not show indeterminate state properly
Summary: [PATCH] CheckBoxes do not show indeterminate state properly
Alias: None
Product: Class Libraries
Classification: Mono
Component: Windows.Forms ()
Version: 2.10.x
Hardware: PC Linux
: --- normal
Target Milestone: Untriaged
Assignee: Bugzilla
Depends on:
Reported: 2011-10-03 18:51 UTC by Stephen McConnel
Modified: 2011-10-17 06:34 UTC (History)
2 users (show)

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

sample program that displays the problem (5.94 KB, application/x-compressed-tar)
2011-10-03 18:51 UTC, Stephen McConnel
proposed patch (845 bytes, patch)
2011-10-03 19:38 UTC, Stephen McConnel

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Description Stephen McConnel 2011-10-03 18:51:18 UTC
Created attachment 571 [details]
sample program that displays the problem

The standard CheckBox control shows only the Checked and Unchecked states.  If you try to display the Indeterminate state, it looks the same as the Checked state.
Comment 1 Stephen McConnel 2011-10-03 19:38:39 UTC
Created attachment 572 [details]
proposed patch
Comment 2 Stephen McConnel 2011-10-03 19:41:09 UTC
The proposed patch uses SystemColors.ControlDark instead of SystemColors.ControlDarkDark to draw a checkbox for the Indeterminate state.  This doesn't exactly match the Microsoft .Net behavior, but it does distinguish much better between Checked and Indeterminate.  (SystemColors.ControlDarkDark is too close to Color.Black!)
Comment 3 Tom Hindle 2011-10-17 06:34:49 UTC
commit 305cfa33acd9b7ec99504711f4fe39dbb11e5f6f