private void HanghoabarButtonItem_ItemClick(object sender, ItemClickEventArgs e) { using (var f = new HanghoaForm()) { f.ShowDialog(); } }
private void hanghoaToolStripMenuItem_Click(object sender, EventArgs e) { //using (var form = new HanghoaForm()) //{ // form.ShowDialog(this); //} var form = new HanghoaForm(); form.MdiParent = this; form.Show(); }