联C＃code VS Page

本文介绍了联C＃code VS Page_Load方法的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我工作的ASP.NET Web应用程序。结果我有两个文件 - > example.aspx和example.aspx.cs其背后code

我想知道有什么区别将内嵌C＃code。在example.aspx顶部

之间

＆LT;％    如果（会话[页]！= NULL）    {        //映射会话方法瓦尔形成元素        loadSessionData（）;    }％GT;

和把code文件example.aspx.cs背后的code

的的Page_Load（）方法

保护无效的Page_Load（对象发件人，EventArgs的发送）{     如果（会话[页]！= NULL）     {         //映射会话方法瓦尔形成元素         loadSessionData（）;     }}

根据在哪里我把code中的应用程序的行为在关于会话的数据加载到表单元素不同。

任何帮助将大大AP preciated。

更新：我想通了，为什么不同的地方，我把code表现不同应用。如果我把内联C＃的方法调用时在.aspx顶不上回发运行。如果我把C＃方法调用中的.aspx.cs code的的Page_Load（）方法隐藏文件它不回发上运行。所以，如果我想要把方法在Page_Load方法，但不能在回发运行它，我需要把它包在

如果（！的IsPostBack）{    loadSessionData（）;}

解决方案

我想执行code时，最大的区别是在时刻。当（我认为）执行内联code这是Page_Render之前的Page_Load occurres。

I am working on an ASP.NET Web Application. I have two files -> example.aspx and its code behind example.aspx.cs

I am wondering what the difference is between putting inline C# code at the top of example.aspx

<% if (Session["Page"] != null) { //method that maps session vars to form elements loadSessionData(); } %>

and putting the code in the Page_Load() method of the code behind file example.aspx.cs

protected void Page_Load(object sender, EventArgs e) { if (Session["Page"] != null) { //method that maps session vars to form elements loadSessionData(); } }

Depending where I put the code the application behaves different in regards to loading the session data into the form elements.

Any help on this would be greatly appreciated.

Update: I figured out why depending on where I put the code the application behaved differently. If I put the inline C# method call at the top of the .aspx it does not run on postbacks. If I put the C# method call in the Page_Load() method of the .aspx.cs code behind file it does run on postbacks. So if I want to put the method in the Page_Load method but not run it on postbacks I would need to wrap it in:

if (!IsPostBack) { loadSessionData(); }

解决方案

I would think the biggest difference would be the moment when the code is executed. Page_Load occurres before the Page_Render which is when (I think) inline code is executed.