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"); } }