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我们需要从库中的函数订阅下一页加载事件

问题是订阅工作的唯一地方是如果我们在 Page.OnInit 中这样做：

override protected void OnInit(EventArgs e)
    {
        if (!IsPostBack){
            this.Load += test; //this would work only the first time if you want the test function to be called in each pageload you have to remove the !ispostback condition
    }

protected void test(object sender, EventArgs e)
    {//enters correctly

    }

我们想要的是这样的：

In website proyect:

    buttonDoSomething_Click(object sender, EventArgs e)
    {
        Functions.CheckNextPageLoad(this);
    }

In function library proyect:

    CheckNextPageLoad(Page pagex)
    {
        pagex.Load+=CheckNextPageLoadEvent;
    }

CheckNextPageLoadEvent(object sender, EventArgs e)
{
   Page page = HttpContext.Current.Handler as Page; //or get it from the sender object

   //check especific property of the postback or change something especific

}

这将有助于作为我们相关问题的替代解决方案（所以 2x1）： ASP.NET c# Fix for the OK event of a custom ConfirmMessagebox inside a function library (Getting the button clicked on the postback/next pageload we can call委托方法）

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