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PropertyGrid randomly loses toolbar items
See original GitHub issue.NET version
Microsoft.WindowsDesktop.App 6.0.16
Did it work in .NET Framework?
Yes
Did it work in any of the earlier releases of .NET Core or .NET 5+?
No idea
Issue description
I have an app with a PropertyGrid control, which is customised with few extra buttons.
I observed that the custom buttons randomly disappear. Here’s the trace of the issue:
DarcUI.dll!DarcUI.ExtendedPropertyGrid.ToolStripButton2.OnParentChanged(System.Windows.Forms.ToolStrip oldParent = {System.Windows.Forms.PropertyGridToolStrip}, System.Windows.Forms.ToolStrip newParent = null) Line 29 C#
> System.Windows.Forms.dll!System.Windows.Forms.ToolStripItem.SetOwner(System.Windows.Forms.ToolStrip newOwner) Line 3910 C#
System.Windows.Forms.dll!System.Windows.Forms.ToolStripItemCollection.OnAfterRemove(System.Windows.Forms.ToolStripItem item = {DarcUI.ExtendedPropertyGrid.ToolStripButton2}) Line 443 C#
System.Windows.Forms.dll!System.Windows.Forms.ToolStripItemCollection.Clear() Line 225 C#
System.Windows.Forms.dll!System.Windows.Forms.PropertyGrid.SetupToolbar(bool fullRebuild) Line 4302 C#
System.Windows.Forms.dll!System.Windows.Forms.PropertyGrid.OnSystemColorsChanged(System.EventArgs e = {System.EventArgs}) Line 4508 C#
System.Windows.Forms.dll!System.Windows.Forms.Control.OnSystemColorsChanged(System.EventArgs e = {System.EventArgs}) Line 11230 C#
System.Windows.Forms.dll!System.Windows.Forms.Control.OnSystemColorsChanged(System.EventArgs e = {System.EventArgs}) Line 11230 C#
System.Windows.Forms.dll!System.Windows.Forms.Control.OnSystemColorsChanged(System.EventArgs e = {System.EventArgs}) Line 11230 C#
System.Windows.Forms.dll!System.Windows.Forms.Control.OnSystemColorsChanged(System.EventArgs e = {System.EventArgs}) Line 11230 C#
System.Windows.Forms.dll!System.Windows.Forms.Control.UserPreferenceChanged(object sender, Microsoft.Win32.UserPreferenceChangedEventArgs pref) Line 13440 C#
The issue appears to be here: https://github.com/dotnet/winforms/blob/89fcc580afb06911254f00cfc6650b0496c033ad/src/System.Windows.Forms/src/System/Windows/Forms/PropertyGrid.cs#L3940-L3944
The buttonList is rebuilt from only pre-defined elements, completely ignoring any additional elements the toolstrip contained.
Steps to reproduce
I can craft a sample, if necessary.
Issue Analytics
- State:
- Created 4 months ago
- Reactions:1
- Comments:6 (6 by maintainers)
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Here’s the sample: https://github.com/RussKie/DarcUI/blob/930a9c8caac48a185e6bb277aeb2b7bc9fbe5741/src/DarcUI.WinForms/CustomControls/ExtendedPropertyGrid.cs#L51-L58 https://github.com/RussKie/DarcUI/blob/930a9c8caac48a185e6bb277aeb2b7bc9fbe5741/src/DarcUI.WinForms/CustomControls/ExtendedPropertyGrid.cs#L125-L137
I observed the issue to occur whenever I have my little app running and I launch VS, which triggers
OnSystemColorsChangedevent.@merriemcgaw I am fairly sure it would be an API change. So .NET9 makes the most sense.