private void manageUserToolStripMenuItem_Click(object sender, EventArgs e) { if (formManageUser == null) { formManageUser = new FormManageUser(); formManageUser.MdiParent = this; formManageUser.FormClosed += FormManageUser_FormClosed; formManageUser.Show(); } else { formManageUser.Activate(); } }
private void FormManageUser_FormClosed(object sender, FormClosedEventArgs e) { formManageUser = null; //throw new NotImplementedException(); }