Cookie 的写入与读取

private void SaveCookie(string CookieName,string CookieValue)
{
HttpCookie myCookie = new HttpCookie(CookieName);
DateTime now = DateTime.Now;

// Set the cookie value.
myCookie.Value = CookieValue;
// Set the cookie expiration date.
myCookie.Expires = now.AddYears(1);
if(this.Response.Cookies[CookieName]!=null)
this.Response.Cookies.Remove(CookieName);
// Add the cookie.
this.Response.Cookies.Add(myCookie);
}
private string GetCookie(string CookieName)
{
HttpCookie myCookie = new HttpCookie(CookieName);
myCookie = Request.Cookies[CookieName];

// Read the cookie information and display it.
if (myCookie != null)
return myCookie.Value;
else
return null;
}

#region Web 窗体设计器生成的代码
override protected void OnInit(EventArgs e)
{
//
// CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。
//
InitializeComponent();
base.OnInit(e);
}

///

1<summary>   
2/// 设计器支持所需的方法 - 不要使用代码编辑器修改   
3/// 此方法的内容。   
4/// </summary>

private void InitializeComponent()
{
this.Button1.Click += new System.EventHandler(this.Button1_Click);
this.Button2.Click += new System.EventHandler(this.Button2_Click);
this.Load += new System.EventHandler(this.Page_Load);

}
#endregion

private void Button1_Click(object sender, System.EventArgs e)
{
SaveCookie("mycookie","网际浪子");
}

private void Button2_Click(object sender, System.EventArgs e)
{
Response.Write(GetCookie("mycookie"));
}