全能的数据库系统开发模块——登录
版权声明:原创作品,谢绝转载!否则将追究法律责任。 |
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 CRM
{ public partial class frmLogin : Form { public static string M_str_name;//记录登录用户名字 public static string M_str_pwd;//记录登录用户密码 public static string M_str_right;//记录登录用户的权限 CRM.BaseClass.BaseOperate boperate = new CRM.BaseClass.BaseOperate(); CRM.BaseClass.OperateAndValidate opAndvalidate = new CRM.BaseClass.OperateAndValidate(); public frmLogin() { InitializeComponent(); } private void frmLogin_Load(object sender, EventArgs e)
{ opAndvalidate.cboxBind("select UserName from tb_User", "tb_User", "UserName", cboxUName); } private void cboxUName_SelectedIndexChanged(object sender, EventArgs e)
{ SqlDataReader sqlread = boperate.getread("select UserName,UserRight from tb_User where UserName='" + cboxUName.Text + "'"); if (sqlread.Read()) { labURight.Text = sqlread["UserRight"].ToString(); M_str_right = labURight.Text; } sqlread.Close(); } private void btnLogin_Click(object sender, EventArgs e)
{ SqlDataReader sqlread=boperate.getread("select UserName,UserPwd from tb_User where UserName='"+cboxUName.Text.Trim()+"' and UserPwd='"+txtPwd.Text.Trim()+"'"); sqlread.Read(); if (sqlread.HasRows) { M_str_name = cboxUName.Text; M_str_pwd = txtPwd.Text.Trim(); frmMain fmain = new frmMain(); this.Hide(); fmain.Show(); } else { MessageBox.Show("用户名或密码错误!", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information); txtPwd.Text = ""; cboxUName.Focus(); } sqlread.Close(); } private void btnExit_Click(object sender, EventArgs e)
{ Application.Exit(); } private void frmLogin_FormClosing(object sender, FormClosingEventArgs e) { Application.Exit(); } } } 本文出自 “.net爱好者” 博客,谢绝转载! 本文出自 51CTO.COM技术博客 |


leoamin
博客统计信息
热门文章
最新评论
友情链接