Question

我遇到的问题是我使用母版页设置会话变量，然后使用这些会话变量来处理占位符中的内容。但是，会话变量未在内容中显示为已更新。我在下面做了一个小例子。

我需要在母版页和内容中更新会话变量。现在，好像内容代码隐藏在母版页之前或同时运行。我假设主页代码隐藏首先运行，从而设置会话变量。任何帮助将不胜感激。谢谢！（使用C＃构建.NET 2.0）

testmass.master

<%@ Master Language="C#" inherits="gpworklist.testmass"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">

    <html> 
    <head runat="server">
    </head>
    <body>
    <form id="testthisform">
    <select id="test1sel" name="test1" runat="server"></select>
    <select id="test2sel" name="test2" runat="server"></select>
    <input type="submit" value="Submit" />
    </form>
    <div id="testsess" runat="server"></div>
    <asp:ContentPlaceHolder id="cntnt_phldr" runat="server">
    </asp:ContentPlaceHolder>
    </body>
</html>

testmass.cs

using System;
using System.Web;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;
using System.Web.UI.WebControls;

namespace gpworklist
{
    public class testmass: MasterPage
    {
        public string defProv;

        public testmass()
        {
        }

        public void Page_Load()
        {
            Response.Cache.SetCacheability(HttpCacheability.NoCache);
            Response.Cache.SetNoStore();
            Response.Cache.SetExpires(DateTime.MinValue);

            HtmlSelect sel1 = (HtmlSelect)this.FindControl("ctl00$test1sel");
            HtmlSelect sel2 = (HtmlSelect)this.FindControl("ctl00$test2sel");
            HtmlGenericControl div = (HtmlGenericControl)this.FindControl("ctl00$testsess");

            string def1;
            string def2;

            ListItem item;

            if (Request["ctl00$test1sel"] != null && Request["ctl00$test1sel"] != "")
            {
                Session["test1"] = Request["ctl00$test1sel"];
            }
            if (Request["ctl00$test2sel"] != null && Request["ctl00$test2sel"] != "")
            {
                Session["test2"] = Request["ctl00$test2sel"];
            }

            if (Session["test1"] != null)
            {
                def1 = Session["test1"].ToString();
            }
            else
            {
                def1 = "";
            }
            if (Session["test2"] != null)
            {
                def2 = Session["test2"].ToString();
            }
            else
            {
                def2 = "";
            }

            for (int i = 0; i <= 10; i++)
            {
                item = new ListItem(i.ToString(), i.ToString());
                if (i.ToString() == def1)
                {
                    item.Selected = true;
                }
                sel1.Items.Add(item);
            }
            //Session["test1"] = sel1.Value;

            for (int i = 0; i <= 10; i++)
            {
                item = new ListItem(i.ToString(), i.ToString());
                if (i.ToString() == def2)
                {
                    item.Selected = true;
                }
                sel2.Items.Add(item);
            }
            Session["test2"] = sel2.Value;

            div.InnerHtml = Session["test1"] + " - " + Session["test2"];

        }
    }
}

testpage.aspx

<%@ Page Language="C#" MasterPageFile="testmass.master" Inherits="gpworklist.testpage"%>
<asp:content ID="contentstuff" contentplaceholderid="cntnt_phldr" runat="server">
    <div id="testpagesess" runat="server"></div>
</asp:content>

testpage.cs

using System;
using System.Web;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;
using System.Web.UI.WebControls;

namespace gpworklist
{
    public class testpage: Page
    {
        public testpage()
        {
        }

        public void Page_Load()
        {
            Response.Cache.SetCacheability(HttpCacheability.NoCache);
            Response.Cache.SetNoStore();
            Response.Cache.SetExpires(DateTime.MinValue);

            HtmlGenericControl div = (HtmlGenericControl)this.FindControl("ctl00$cntnt_phldr$testpagesess");

            div.InnerHtml = Session["test1"] + " - " + Session["test2"];
        }
    }
}

Answer 1

内容页面的事件在同一母版页的事件之前触发。见http://msdn.microsoft.com/en-us/library/vstudio/dct97kc3(v=vs.100).aspx

Answer 2

您应该使用Init的{{1}}事件，而不是MasterPage事件。这将在Load之前调用。

Master.cs在页面内容代码后面运行

2 个答案: