using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

internal class FindSpecificControls
{
    public static List<T> FindControlsByInterface<T>(Control parent) where T : class
    {
        var controlsWithInterface = new List<T>();
        foreach (Control control in GetAllControls(parent))
        {
            if (control is T interfaceControl)
            {
                controlsWithInterface.Add(interfaceControl);
            }
        }
        return controlsWithInterface;
    }

    // 递归获取所有嵌套控件
    private static IEnumerable<Control> GetAllControls(Control container)
    {
        foreach (Control control in container.Controls)
        {
            yield return control;

            if (control.HasChildren)
            {
                foreach (Control child in GetAllControls(control))
                {
                    yield return child;
                }
            }
        }
    }

}