dotnet/winforms

[Dark Mode] Different Icon Display for Expanding Nodes with Child Items in TreeView

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#11,932 创建于 2024年8月20日

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 (1 评论) (0 反应) (0 负责人)C# (4,100 star) (922 fork)batch import
area-DarkModehelp wanted

描述

.NET version

9.0.0-rc.1.24414.1 + build private dll from winforms repo main branch

Did it work in .NET Framework?

No

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

This is a new feature Dark Mode: https://github.com/dotnet/winforms/pull/11857

Issue description

The icon for expanding nodes with child items in TreeView appears differently in Dark Mode compared to Classic. Please confirm if this is the expected behavior. Below are the results in Classic and Dark Mode

Classic Screenshot 2024-08-20 055045

Dark Mode Screenshot 2024-08-20 054838

Steps to reproduce

  1. Create a WinForms .NET Core application with TreeView control.
  2. Populate the TreeView with a parent node that contains several child nodes.
  3. Enable DarkMode by Application.SetColorMode(SystemColorMode.Dark) in Program.cs file.
  4. Run the application.
  5. Observe the expand icon

贡献者指南

技术栈
csharp
领域
desktop
议题类型
bug
难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。
3
预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。
1-3 hours
活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。
fresh
清晰度议题是否清楚说明期望改动、验收标准和下一步。
clear
前置要求
C#WinForms basics
新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。
60
研究方向
Investigate the TreeView expand icon rendering in dark mode. Compare the Classic and Dark Mode glyph drawing logic. The relevant code is likely in the TreeView control's painting methods. Check the recent dark mode changes in PR #11857.