如何通过页面作为参考参数的函数 [英] How to pass Page as ref parameter to a function

问题描述

我想知道我怎么能PAAS页为参考参数的函数

这就是我想要做的。

 
  公共部分类主页：System.Web.UI.Page
{
    保护无效的Page_Load（对象发件人，EventArgs的发送）
    {
        如果（！SetupUserPermission.isSessionExpired（））
        {
            字符串userid =会话[用户ID]的ToString（）。
            SetupUserPermission.SetupUserRights（REF this.Page，Convert.ToInt32（用户ID））;
        }
    }
}
 

解决方案

您不能在C＃中引用传递属性。你为什么想通过引用在此情况下通过网页？

在VB中你可以的通过引用传递性，以及在这种情况下，相当于将是：

 网​​页TMP =页;
SetupUserPermission.SetupUserRights（REF TMP，Convert.ToInt32（用户ID））;
页= tmp目录;
 

您真的确定要这么做？

我怀疑你真的不希望通过引用传递它，你只是稍微困惑参数的传递。请参见我的话题文章以了解更多信息。

I would like to know how Can I paas Page as Ref Parameter to a function

This is what I want to do

 
  public partial class HomePage : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if(!SetupUserPermission.isSessionExpired())
        {
            string UserId = Session["UserId"].ToString();
            SetupUserPermission.SetupUserRights(ref this.Page, Convert.ToInt32(UserId));
        }


    }
}
 

解决方案

You can't pass a property by reference in C#. Why do you want to pass Page by reference in this case?

In VB you can pass a property by reference, and the equivalent in this case would be:

Page tmp = Page;
SetupUserPermission.SetupUserRights(ref tmp, Convert.ToInt32(UserId));
Page = tmp;

Are you really sure you want to do that?

I suspect you don't really want to pass it by reference, and you're just slightly confused about parameter passing. See my article on the topic for more information.

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