/// <summary> /// '登录'按钮事件 /// </summary> private void bt_Login_Click(object sender, EventArgs e) { ArrayList arr = new ArrayList(); String CommandText = "select count(ID) from t_admin where UName = " + textBox_UserName.Text.Trim() + ""; arr = SQLHelp.ExecuteReArrList(CommandText); if (arr[0].ToString().Equals("0")) { MessageBox.Show("用户名不存在!"); } else { CommandText = "select * from t_admin where UName = " + textBox_UserName.Text.Trim() + ""; arr = SQLHelp.ExecuteReArrList(CommandText); if (TextBox_Pass.Text.Trim().Equals(arr[2])) { Constants.AdminID = textBox_UserName.Text.Trim(); this.Close(); login = true; } else { MessageBox.Show("密码不正确!!"); } } }