using?System;
using?System.Collections.Generic;
using?System.ComponentModel;
using?System.Data;
using?System.Drawing;
using?System.Text;
using?System.Windows.Forms;
using?System.Data.SqlClient;

namespace?SMS
{
????public?partial?class?frmLogin?:?Form
????{
????????public?static?string?M_str_name;//記錄登錄用戶名字
????????public?static?string?M_str_pwd;//記錄登錄用戶密碼
????????public?static?string?M_str_right;//記錄登錄用戶的權限
????????baseClass.DataCon?datacon?=?new?SMS.baseClass.DataCon（）;
????????baseClass.DataOperate?doperate?=?new?SMS.baseClass.DataOperate（）;
????????public?frmLogin（）
????????{
????????????InitializeComponent（）;
????????}
?
????????private?void?frmLogin_Load（object?sender?EventArgs?e）
????????{
????????????doperate.cboxBind（“select?UserName?from?tb_User“?“tb_User“?“UserName“?cboxUName）;
????????}

????????private?void?btnLogin_Click（object?sender?EventArgs?e）
????????{
????????????int?P_int_returnValue?=?doperate.UserLogin（cboxUName.Text.Trim（）?txtPwd.Text.Trim（））;
????????????if?（P_int_returnValue?==?100）
????????????{
????????????????M_str_name?=?cboxUName.Text;
????????????????M_str_pwd?=?txtPwd.Text.Trim（）;
????????????????frmMain?fmain?=?new?frmMain（）;
????????????????this.Hide（）;
????????????????fmain.Show（）;
????????????}
????????????if?（P_int_returnValue?==?-100）
????????????{
????????????????MessageBox.Show（“用戶名或密碼錯誤！“?“提示“?MessageBoxButtons.OK?MessageBoxIcon.Information）;
????????????????txtPwd.Text?=?““;
????????????????cboxUName.Focus（）;
????????????}?
????????}

????????private?void?btnExit_Click（object?sender?EventArgs?e）
????????{
????????????Application.Exit（）;
????????}

????????private?void?cboxUName_SelectedIndexChanged（object?sender?EventArgs?e）
????????{
????????????SqlDataReader?sqlread?=?datacon.getread（“select?UserNameUserRight?from?tb_User?where?UserName=‘“?+?cboxUName.Text?+?“‘“）;
????????????if?（sqlread.Read（））
????????????{
????????????????labURight.Text?=?sqlread[“UserRight“].ToString（）;
????????????????M_str_right?=?labURight.Text;
????????????}
????????????sqlread.Close（）;
????????}

????????private?void?frmLogin_FormClosing（object?sender?FormClosingEventArgs?e）
????????{
????????????Application.Exit（）;
????????}
????}
}