如何在页面的基类执行的Page_Load()? [英] How to Execute Page_Load() in Page's Base Class?

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本文介绍了如何在页面的基类执行的Page_Load()?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

我有以下PerformanceFactsheet.aspx.cs页面类

I have the following PerformanceFactsheet.aspx.cs page class

public partial class PerformanceFactsheet : FactsheetBase
{
    protected void Page_Load(object sender, EventArgs e)
    {
        // do stuff with the data extracted in FactsheetBase
        divPerformance.Controls.Add(this.Data);
    }
}

在这里FactsheetBase被定义为

where FactsheetBase is defined as

public class FactsheetBase : System.Web.UI.Page
{
    public MyPageData Data { get; set; } 
    protected void Page_Load(object sender, EventArgs e)
    {
        // get data that's common to all implementors of FactsheetBase
        // and store the values in FactsheetBase's properties
        this.Data = ExtractPageData(Request.QueryString["data"]);            
    }
}

问题在于FactsheetBase的Page_Load中不执行

The problem is that FactsheetBase's Page_Load is not executing.

谁能告诉我什么,我做错了什么?有没有更好的办法得到的结果,我后?

Can anyone tell me what I'm doing wrong? Is there a better way to get the result I'm after?

感谢

推荐答案

我们所面临的类似问题,所有你需要做的就是注册在构造函数中的处理程序。 :)

We faced the similar problem, All you need to do is just register the handler in the constructor. :)

public class FactsheetBase : System.Web.UI.Page 
{ 

    public FactsheetBase()
    {
        this.Load += new EventHandler(this.Page_Load);
    }

    public MyPageData Data { get; set; }  
    protected void Page_Load(object sender, EventArgs e) 
    { 
        // get data that's common to all implementors of FactsheetBase 
        // and store the values in FactsheetBase's properties 
        this.Data = ExtractPageData(Request.QueryString["data"]);             
    } 
}

另一种方法是为覆盖的OnLoad()这是少preferred。

Another approach would be to override OnLoad() which is less preferred.

public class FactsheetBase : System.Web.UI.Page 
{ 

    public FactsheetBase()
    {
    }

    public MyPageData Data { get; set; }  
    protected override void OnLoad(EventArgs e)
    {
        //your code
        // get data that's common to all implementors of FactsheetBase 
        // and store the values in FactsheetBase's properties 
        this.Data = ExtractPageData(Request.QueryString["data"]);             

        base.OnLoad(e);
    }
}

这篇关于如何在页面的基类执行的Page_Load()?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!

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