private void btButton_Click(object sender, EventArgs e) { if (bt == null) { bt = new Btree.Form1(); bt.FormClosed += btClose; bt.Show(); } }
private void btClose(object sender, EventArgs e) { bt = null; }
private void btButton_Click(object sender, EventArgs e) { if (bt == null) { bt = new Btree.Form1(); bt.FormClosed += btClose; bt.Show(); } }
private void btClose(object sender, EventArgs e) { bt = null; }