private void UsersToolStripMenuItem_Click(object sender, EventArgs e) { if (frmUsers == null) { frmUsers = new UsersFrm(); frmUsers.MdiParent = this; frmUsers.FormClosed += FrmUsers_FormClosed; frmUsers.Show(); } else { frmUsers.Activate(); } }
private void FrmUsers_FormClosed(object sender, FormClosedEventArgs e) { frmUsers = null; }