private void đổiMậtKhẩuToolStripMenuItem_Click(object sender, EventArgs e) { if (frmdmk == null || frmdmk.IsDisposed) { frmdmk = new FrmDoiMatKhau(); } frmdmk.ShowDialog(); }
private void đổiMậtKhẩuToolStripMenuItem_Click(object sender, EventArgs e) { FrmDoiMatKhau frmdmk = new FrmDoiMatKhau(); frmdmk.Show(); }