Index.master.cs

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

public partial class Index : System.Web.UI.MasterPage
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!this.IsPostBack)
        {
            if (Session["studentid"] != null)
            {
                nologin.Visible = false;
                islogin.Visible = true;
                Literal1.Text = "<span style='color:red'>您好：" + Session["uname"].ToString() + "！</span>";
            }
            if (Session["qxuserid"] != null) 
            {
                nologin.Visible = false;
                islogin.Visible = true;
                Literal1.Text = "<span style='color:red'>您好：" + Session["qxuname"].ToString() + "！</span>";
            }
            //bind();
        }
    }

    public string ReturnLink() 
    {
        if (Session["studentid"] != null) { return "UserInfo.aspx"; }
        else if (Session["qxuname"] != null) { return "CompanyCenter.aspx"; }
        else { return ""; }
    }

    protected void LinkButton1_Click(object sender, EventArgs e)
    {
        Session["studentid"] = null;
        Session["uname"] = null;
        Session["mima"] = null;
        Session["quanxian"] = null;
        Session["qxuname"] = null;
        Session["qxmima"] = null;
        Session["qxquanxian"] = null;
        Session["userid"] = null;
        Session["qxuserid"] = null;
        Literal1.Text = "";
        nologin.Visible = true;
        islogin.Visible = false;
        Response.Redirect("Index.aspx");
    }
}