实现记住密码,有效期等功能.cookie.
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cookie对象的expires属性和value属性.
下面是两部分实例:
/////////////////////////////////////////////////////////////////////////////////////////////////////
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;
public partial class admin : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (Session["username"] == null)
{
Response.Redirect("Default.aspx");
}
else
{
Response.Write("用户" + Session["username"] + "成功登录！");
}
}
}
///////////////////////////////////////////////////////////////////////////
using System;
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;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void Button2_Click(object sender, EventArgs e)
{
txtname.Text = "";
txtpwd.Text = "";
}
protected void Button1_Click(object sender, EventArgs e)
{
if (txtname.Text.Trim().Equals("mr") && txtpwd.Text.Trim().Equals("mrsoft"))
{
Session["username"] = txtname.Text.Trim();
if (ckbauto.Checked)
{
if (Request.Cookies["username"] == null)
{
Response.Cookies["username"].Expires = DateTime.Now.AddDays(30);
Response.Cookies["userpwd"].Expires = DateTime.Now.AddDays(30);
Response.Cookies["username"].Value = txtname.Text.Trim();
Response.Cookies["userpwd"].Value = txtpwd.Text.Trim();
}
}
Response.Redirect("admin.aspx");
}
else
{
ClientScript.RegisterStartupScript(this.GetType(),"","alert('用户名或密码错误！');",true);
}
}
protected void txtname_TextChanged(object sender, EventArgs e)
{
if (Request.Cookies["username"] != null)
{
if (Request.Cookies["username"].Value.Equals(txtname.Text.Trim()))
{
txtpwd.Attributes["value"] = Request.Cookies["userpwd"].Value;
}
}
}
}
