MasterPage.master.cs

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using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;

public partial class MasterPage : System.Web.UI.MasterPage
{
    SqlHelper data = new SqlHelper();
   public DataSet ds = new DataSet();
    protected void Page_Load(object sender, EventArgs e)
    {

            string strsql = "select * from fenlei";;
            ds = data.GetDs(strsql, "ds");

    }
    protected string CutChar(string strChar, int intLength)
    {
        //取得自定义长度的字符串
        if (strChar.Length > intLength)
        { return strChar.Substring(0, intLength); }
        else
        { return strChar; }

    }
    protected void Button3_Click(object sender, EventArgs e)
    {
        if (yonghuhao.Text == "" && mima.Text == "")
        {
            Alert.AlertAndRedirect("没有输入账号和密码！", "Default.aspx");
        }
        else
        {
            SqlDataReader dr;
            dr = data.GetDataReader("select * from  yonghu where yonghuhao='" + yonghuhao.Text.Trim() + "'and mima='" + mima.Text.Trim() + "'");
            if (dr.Read())
            {
                Session["id"] = dr["id"].ToString();
                Session["yonghuhao"] = dr["yonghuhao"].ToString();
                Session["xingming"] = dr["xingming"].ToString();
                Response.Redirect("Default.aspx");
            }
            else
            {
                Alert.AlertAndRedirect("账号或者密码不对请重新登陆！", "Default.aspx");
            }
        }
    }
    protected void Button2_Click(object sender, EventArgs e)
    {
        string guanjianzi = this.guanjianzi.Text;
        Response.Redirect("tiezisousuo.aspx?zhuti="+guanjianzi+"");
    }