如何实现整个项目page重载？

Question

为了实现更换皮肤，我要每页都加上 这段代码？请问如何实现整个项目 重载呢？
    protected void Page_PreInit(object sender, EventArgs e)
    {        if (Request.Cookies["Skin_Name"]==null)
        {
            Page.Theme = "Blue";
            Response.Cookies["Skin_Name"].Value = "Blue";
            Response.Cookies["Skin_Name"].Expires = DateTime.Now.AddYears(1);
        }
        else
        {
            Page.Theme = Request.Cookies["Skin_Name"].Value;
        }
        if (Request.QueryString["skin"]!=null)
        {
            SetSkin(Request.QueryString["skin"]);
        }
    }

Answer 1

写一个基类
public class BasePage:Page
{
   protected override void Page_PreInit(object sender, EventArgs e)
    {         
        if (Request.Cookies["Skin_Name"]==null)
        {
            Page.Theme = "Blue";
            Response.Cookies["Skin_Name"].Value = "Blue";
            Response.Cookies["Skin_Name"].Expires = DateTime.Now.AddYears(1);
        }
        else
        {
            Page.Theme = Request.Cookies["Skin_Name"].Value;
        }
        if (Request.QueryString["skin"]!=null)
        {
            SetSkin(Request.QueryString["skin"]);
        }
        base(sender,e);
    }
以后都继承BasePage就可以了}

Answer 2

定义一个基类.对protected void Page_PreInit(object sender, EventArgs e)
进行重写....然后继承