如何强制PropertyGrid显示特定属性的自定义对话框?

你需要设置一个 [Editor(...)] 为了财产,给它一个 UITypeEditor 这样编辑;就像这样(用你自己的编辑器…)

using System;
using System.ComponentModel;
using System.Drawing.Design;
using System.Windows.Forms;
using System.Windows.Forms.Design;


static class Program
{
    static void Main()
    {
        Application.Run(new Form { Controls = { new PropertyGrid { SelectedObject = new Foo() } } });
    }
}



class Foo
{
    [Editor(typeof(StringEditor), typeof(UITypeEditor))]
    public string Bar { get; set; }
}

class StringEditor : UITypeEditor
{
    public override UITypeEditorEditStyle GetEditStyle(ITypeDescriptorContext context)
    {
        return UITypeEditorEditStyle.Modal;
    }
    public override object EditValue(ITypeDescriptorContext context, IServiceProvider provider, object value)
    {
        IWindowsFormsEditorService svc = (IWindowsFormsEditorService)
            provider.GetService(typeof(IWindowsFormsEditorService));
        if (svc != null)
        {
            svc.ShowDialog(new Form());
            // update etc
        }
        return value;
    }
}

您可能无法通过查看按您希望的方式工作的现有属性来跟踪现有的编辑器。