c# - 调试器可视化工具和 "Type is not marked as serializable"

Question

我正在尝试创建一个调试器可视化工具，它会显示任何 Control 的控件层次结构。它已完成，但我收到异常“类型未标记为可序列化”。

我该如何克服呢？控件是 .NET Windows 窗体框架类型，我无法将其标记为可序列化。

Answer 1

您还需要实现 VisualizerObjectSource执行自定义序列化。

例子:

public class ControlVisualizerObjectSource : VisualizerObjectSource
{
    public override void GetData(object target, Stream outgoingData)
    {
        var writer = new StreamWriter(outgoingData);
        writer.WriteLine(((Control)target).Text);
        writer.Flush();
    }
}
public class ControlVisualizer : DialogDebuggerVisualizer
{
    protected override void Show(
        IDialogVisualizerService windowService,
        IVisualizerObjectProvider objectProvider)
    {
        string text = new StreamReader(objectProvider.GetData()).ReadLine();
    }
    public static void TestShowVisualizer(object objectToVisualize)
    {
        var visualizerHost = new VisualizerDevelopmentHost(
            objectToVisualize,
            typeof(ControlVisualizer),
            typeof(ControlVisualizerObjectSource));
        visualizerHost.ShowVisualizer();
    }
}
class Program
{
    static void Main(string[] args)
    {
        ControlVisualizer.TestShowVisualizer(new Control("Hello World!"));
    }
}

您还需要使用适当的 VisualizarObjectSource 注册可视化工具，对于此示例，它可能是这样的:

[assembly: DebuggerVisualizer(
    typeof(ControlVisualizer),
    typeof(ControlVisualizerObjectSource),
    Target = typeof(System.Windows.Forms.Control),
    Description = "Control Visualizer")]