ถามเรื่องวิธีส่งค่าคืนจาก child window ครับ ใช้ (vs 2005 )

private void ShowOptionsForm()
{
	dynamic options = new frmOptions();

	// Did the user click Save?
	if (options.ShowDialog() == Windows.Forms.DialogResult.OK) {
		// Yes, so grab the values you want from the dialog here
		string textBoxValue = options.txtMyTextValue.Text;
	}
}

public class frmOptions
{
	private void btnSave_Click(object sender, EventArgs e)
	{
		// Set the result to pass back to the form that called this dialog
		this.DialogResult = Windows.Forms.DialogResult.OK;
	}
}