private void buttom1_Click(object sender, EventArgs e)
        {
            if (textBox1.Text != "" && textBox1.Text != "Username")
            {
                UpdateDBLin ul = new UpdateDBLin();
                User        ui = ul.AdminGetUser(textBox1.Text);

                if (ui.UserName != null)
                {
                    AdminCUser ac = new AdminCUser(this, ui, ai);
                    this.Hide();
                    ac.Show();
                }
                else
                {
                    MessageBox.Show("User Not Found");
                }
            }
            else
            {
                MessageBox.Show("Enter Valid Username");
            }
        }