Fomr 为什么总是提示这个错误 1“CreateWindows.Form1.Dispose(bool)”: 没有找到适合的方法来重写 如何修改

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
namespace CreateWindows
{
    /// <summary>
    ///myform的摘要说明
    /// </summary>
    public class TestForm : System.Windows.Forms.Form
    {
        /// <summary>
        /// 必须的容器变量设置
        /// </summary>
        private System.ComponentModel.Container components = null;
        public TestForm()
        {
            InitializeComponent();
        }
        /// <summary>
        /// 清除所有正在被使用的资源
        /// </summary>
        protected override void Dispose(bool disposing)
        {
           if (disposing)
           {
               if (components != null)
               {
                   components.Dispose();                }
            }
           base.Dispose(disposing);
        }
        # region Windows Form Designer generated code
        /// <summary>
        /// 设计器所支持的方法 不要使用代码编辑器修改
        /// </summary>
        private void InitializeComponent()
        {
            this.autoScaleBaseSize = new System.Drawing.Size(5, 15);
            this.BackColor = System.Drawing.Color.Brown;
            this.ClientSize = new System.Drawing.Size(292, 273);
            this.Cursor = System.Windows.Forms.Cursors.Hand;
            this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle;
            this.Name = "TestForm";
            this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
            this.Text = "测试窗体";
            this.MouseDown += new System.Windows.Forms.MouseEventHandler(this.TestForm_MouseDown);
            this.Move += new System.EventHandler(this.TestForm_Move);
        }
        #endregion
        /// <summary>
        /// 应用程序主程序介入点
        /// </summary>
       // public static void Main()
       // {
       //     Application.Run(new TestForm());
       // }
        private void TestForm_MouseDown(object sender, System.Windows.Forms.MouseEventHandler e)
        {
            this.Text = "鼠标被按下";
        }
        private void TestForm_Move(object sender, System.EventHandler e)
        {
            this.Text = "窗体被移动";
        }
    }
}