dotnet/winforms

[DarkMode]The Form1 title bar change to white color when set the RightToLeft to Yes in PropertyGrid control

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#12,582 建立於 2024年12月4日

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 (1 留言) (0 反應) (1 負責人)C# (4,100 star) (922 fork)batch import
area-DarkModehelp wanted

描述

.NET version

.NET 10.0.100-alpha.1.24573.1

Did it work in .NET Framework?

No

Did it work in any of the earlier releases of .NET Core or .NET 5+?

No, also repro in .NET 9.0 which it started to be supported.

Issue description

The Form1 title bar change to white color when set the RightToLeft to Yes in PropertyGrid control. Image

Steps to reproduce

Repro steps:

  1. Create a WinForms .NET application with PropertyGrid control
  2. Set PropertyGrid's selectedObject property to Form1
  3. Enable DarkMode by Application.SetColorMode(SystemColorMode.Dark) in Program.cs file
  4. Run the application
  5. In PropertyGrid control, set the RightToLeft property to Yes

More Info:

  1. If repro the issue, then set RightToLeft property to No, the Form1 title bar also be white color.

貢獻者指南

技術棧
csharp
領域
frontend
議題類型
bug
難度面向新貢獻者的預計實作難度，1 表示很小改動，5 表示專家級工作。
3
預計時間有經驗貢獻者完成調查、實作、測試並準備 pull request 的粗略時間範圍。
half day
活動狀態議題目前的可參與程度：新鮮、活躍、陳舊、阻塞或等待維護者輸入。
active
清晰度議題是否清楚說明預期改動、驗收標準和下一步。
clear
前置要求
Familiarity with WinFormsUnderstanding of dark mode themingC# programming
新手友善度1-100 的估計分數，表示該議題對首次貢獻者的友善程度。
50
研究方向
This issue is about a dark mode bug in Windows Forms where setting RightToLeft to Yes in a PropertyGrid causes the Form1 title bar to turn white. The repro steps are clear and include setting dark mode via Application.SetColorMode. The assignee is likely already working on it. To contribute, investigate the WinForms source code, specifically how the PropertyGrid control interacts with the title bar color during RightToLeft property changes. Look for relevant updates in the dark mode theming logic, possibly in the PropertyGrid control or the Form class. Check the existing comments on issue #12582 for any additional insights.