Form1主窗体：

	 

	复制代码 代码如下:

	

	public delegate void SetVisiableHandler();//定义委托类型
	

		 
	

		private void button1_Click(object sender,EventArgs e)//单击事件，打开子窗体

		{

		    Form2 frm = new Form2(new SetVisiableHandler(SetVisiable));

		    frm.Show();

		}
	

		private void SetVisiable()

		{

		    dataGridView1.Rows.Add("123","456","789");

		}


	 

	Form2子窗体：

	 

	复制代码 代码如下:

	

	private SetVisiableHandler m_setVisable;//声明委托变量

	public Form2(SetVisiableHandler  setvisiable)

	{

	    InitializeComponent();

	    this.m_setVisiable = setvisiable;

	}
	

		 
	

		public void butten1_Click(object sender,EventArgs e)

		{

		    if(this.m_setVisiable != null)

		    {

		        this.m_setVisiable();

		    }
	

		}