user/usermod.aspx.cs

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using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using dao;
public partial class user_usermod : System.Web.UI.Page
{
    string id = "";
    protected void Page_Load(object sender, EventArgs e)
    {
        id = Request.QueryString["id"].ToString();
        if (!IsPostBack)
        {

            string sql = "select * from usert where id='" + id + "'";
            DataTable dt = DBHelper.GetDataSet(sql);
            if (dt.Rows.Count > 0)
            {
               this.username.Text =dt.Rows[0]["username"].ToString();
this.userpwd.Text =dt.Rows[0]["userpwd"].ToString();
this.addTime.Text =dt.Rows[0]["addTime"].ToString();
this.email.Text =dt.Rows[0]["email"].ToString();


     
            }
        }
    }
    protected void Button1_Click(object sender, EventArgs e)
    {
      string username=this.username.Text;//用户名
string userpwd=this.userpwd.Text;//用户密码
string addTime=this.addTime.Text;//修改时间
string email=this.email.Text;//用户邮箱地址

		if(username.Length==0){
MessageBox.Show(this.Page,"用户名不能为空");
return ;
}

if(userpwd.Length==0){
MessageBox.Show(this.Page,"用户密码不能为空");
return ;
}


     
        string sql = "update usert set  username='"+username+"',userpwd='"+userpwd+"',addTime='"+addTime+"',email='"+email+"' where id ='"+id+"'";
        int row = 0;
        try
        {
            row = DBHelper.ExecuteCommand(sql);