WinForm子表單訪問父表單控制項的實現方法_C#教程

Form1主表單：

複製代碼 代碼如下:

public delegate void SetVisiableHandler();//定義委託類型

private void button1_Click(object sender,EventArgs e)//單擊事件，開啟子表單
{
    Form2 frm = new Form2(new SetVisiableHandler(SetVisiable));
    frm.Show();
}

private void SetVisiable()
{
    dataGridView1.Rows.Add("123","456","789");
}

Form2子表單：

複製代碼 代碼如下:

private SetVisiableHandler m_setVisable;//聲明委託變數
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();
    }
}