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强类型登录
(2010-12-05 13:39:35)
标签: it
分类: 努力学习.net using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using 强类型登录.DataSetUsersTableAdapters;
namespace 强类型登录
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
T_UsersTableAdapter adapter = new T_UsersTableAdapter();
强类型登录.DataSetUsers.T_UsersDataTable users = adapter.GetDataByUserName(txtUserName.Text);
if (users.Count <= 0)
{
MessageBox.Show("用户名不存在,请重新输入!");
return;
}
else
{
强类型登录.DataSetUsers.T_UsersRow user = users[0];
if (user.ErrorTime >= 3)
{
MessageBox.Show("登录错误次数过多,禁止登录!");
return;
}
if (user.Password == txtPassword.Text)
{
MessageBox.Show("登录成功!");