c# - 将 ac# 代码预览显示为 UI 元素 (ISuggestedAction.GetPreviewAsync - Visual Studio 扩展)

Question

我想GetPreviewAsync在我的 clas 的方法中显示代码预览ISuggestedAction。

public class BaseAction : ISuggestedAction
{
    ...

    //
    // Summary:
    //     Gets an object visually representing a preview of the suggested action.
    //
    // Parameters:
    //   cancellationToken:
    //     A cancellation token that allows to cancel preview creation.
    //
    // Returns:
    //     A task whose result is an object visually representing a preview of the suggested
    //     action, or null if no preview can be provided.
    //
    // Remarks:
    //     The only currently supported type of preview object is System.Windows.UIElement.
    //     By default preview panel gets highlighted when focused by setting background
    //     color to Microsoft.VisualStudio.Language.Intellisense.LightBulbPresenterStyle.PreviewFocusBackgroundBrush.
    //     When providing a preview object make sure it doesn't set different background
    //     for the whole preview content, otherwise it's recommended that preview object
    //     indicates focused state using Microsoft.VisualStudio.Language.Intellisense.LightBulbPresenterStyle.PreviewFocusBackgroundBrush
    //     color.
    public async Task<object> GetPreviewAsync(CancellationToken cancellationToken)
    {
        // How do I return c# code to preview?
    }
    
    ...
}

根据文档，它需要一个UIElement用于预览的对象。

什么样的UIElement将用于预览代码？我想要与 Visual Studio 提供的现有代码片段生成相同类型的 UI。（见下文）

我也很好奇如何获得Preview Changes按钮，就像默认灯泡操作中存在的那样。