使用 enumValueExtension 对 combobox 进行数据绑定时，ui显示异常

[dodu2014]

Describe the bug

combobox的显示项异常，尝试设置 DisplayMemberPath = Key|Name|Label，都无效

Steps to reproduce

<ComboBox x:Name="themeMode"
          xmlns:ui="using:CommunityToolkit.WinUI"
          xmlns:enums="using:Microsoft.UI.Xaml"
          ItemsSource="{ui:EnumValues Type=enums:ElementTheme}"
          SelectedItem="{x:Bind ViewModel.ElementTheme, Mode=OneWay}"
          DisplayMemberPath="Name"
          >
</ComboBox>

Expected behavior

在ui层，能正常显示

Screenshots

Code Platform

• UWP
• WinAppSDK / WinUI 3
• Web Assembly (WASM)
• Android
• iOS
• MacOS
• Linux / GTK

Windows Build Number

• Windows 10 1809 (Build 17763)
• Windows 10 1903 (Build 18362)
• Windows 10 1909 (Build 18363)
• Windows 10 2004 (Build 19041)
• Windows 10 20H2 (Build 19042)
• Windows 10 21H1 (Build 19043)
• Windows 10 21H2 (Build 19044)
• Windows 10 22H2 (Build 19045)
• Windows 11 21H2 (Build 22000)
• Other (specify)

Other Windows Build number

No response

App minimum and target SDK version

• Windows 10, version 1809 (Build 17763)
• Windows 10, version 1903 (Build 18362)
• Windows 10, version 1909 (Build 18363)
• Windows 10, version 2004 (Build 19041)
• Windows 10, version 2104 (Build 20348)
• Windows 11, version 22H2 (Build 22000)
• Other (specify)

Other SDK version

No response

Visual Studio Version

2022

Visual Studio Build Number

No response

Device form factor

Desktop

Additional context

No response

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[Poker-sang]

这里应该不需要设置DisplayMemberPath

ViewModel.ElementTheme是什么类型的？应该和ItemsSource绑定的数组的元素类型一致

[4broadcast]

@dodu2014 I just ran into this same issue on Windows 11.

See this explanation: https://stackoverflow.com/a/39379568/390982

Simply put, the ElementTheme enumeration is not a .net type, and does not act like a .net enum. You (and I) will need to define a custom enum, or devise another way to mock the enumeration.