从子窗口关闭父窗口

Question

I put button on parent window to go to child window . for closing the child window i use this.close() on button click , but i want to close both parent and child window by click button of child window .

Answer 1

Try this

If Child.ShowDialog = DialogResult.OK Then
          Parent.close
        End If

Child form close button

Me.diaglogresult=DialogResult.OK

Answer 2

将父窗体传递到子窗体中，然后在关闭的事件处理程序中调用其c​​lose方法。

Answer 3

    private void btnOpenForm_Click(object sender, EventArgs e)
    {
        Form2 frm2 = new Form2();
        frm2.FormClosed += new FormClosedEventHandler(frm2_FormClosed);
        frm2.Show();
        this.Hide();
    }


    private void frm2_FormClosed(object sender, FormClosedEventArgs e)
    {
        this.Close();
    }

Answer 4

You can do the close of the parent form from the child but to me that seems to break the encapsulation principle a little.

An alternative is to subscribe to the child form's closed event from the parent and then within the parent you can respond to that - see Winform form closed event for an implementation.