Cookie和Session

Cookie例子

HttpCookie cookie = new HttpCookie("mjsclient");
if (cb_remeberme.Checked)
{
cookie.Expires = System.DateTime.Now.AddDays(7);
}
cookie.Values["Company"] = Server.UrlEncode(sCompany);
cookie.Values["UserName"] = Server.UrlEncode(sUsername);
cookie.Values["PWD"] = Server.UrlEncode(sPwd);
cookie.Values["NickName"] = Server.UrlEncode(ds.Tables[0].Rows[0]["nickname"].ToString());
Response.Cookies.Add(cookie);


//接收

if (Request.Cookies["mjsclient"] != null)
{
rm.a_id = Convert.ToInt32(Request.Cookies["mjsclient"]["UserName"]);
}

Session例子

 Session["UserName"] = txtUser.Text;
if (Session["UserName"] != null)
{   
    lblWelcome.Text = "Welcome : " + Session["UserName"];
}
else
{
 
}


我们也能存储其他对象，下面的例子展示了如何存储一个DataSet到Session里

//Storing dataset on Session
Session["DataSet"] = _objDataSet;
下面的代码展示了如何从Session内读取DataSet

//Check weather session variable null or not
if (Session["DataSet"] != null)
{
    //Retrieving UserName from Session
    DataSet _MyDs = (DataSet)Session["DataSet"];
}
else
{
    //Do Something else
}