private void 폼간데이터전송나머지타입의데이터ToolStripMenuItem_Click(object sender, EventArgs e)
{
frmDataTransferEx2 fetfe2 = new frmDataTransferEx2();
fetfe2.MdiParent = this;
fetfe2.Show();
}
private void btnSend_Click(object sender, EventArgs e)
{
frmDataTransferEx2 fdte = (frmDataTransferEx2)Owner; //부모폼을 지정해야 한다.
fdte.Msg = txtMessage.Text;
this.Dispose(); // 자원해제
this.Close();
}