如何调用已实现的接口函数

Question

I have a "Page" that implement my own "Permission" interface.

public interface PagePermissions{
      Dictionary<string, Permission> readPermissions();
}


public partial class myWebPage: System.Web.UI.Page, PagePermissions
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }
     Dictionary<string, Permission> PagePermissions.readPermissions()
    {
        Dictionary<string, Permission> results = new Dictionary<string, Permission>();
        return results;
    }
}

In my master page, I get a reference to the current Page object.

  Page myPage = HttpContext.Current.Handler as Page;

But I can't call my function ReadPermission because it's not recognizing it:

  myPage.readPermissions();

How do I call my implemented function?

Answer 1

You need to cast myPage to PagePermissions .

PagePermissions myPage = HttpContext.Current.Handler as PagePermissions;
myPage.readPermissions();

Answer 2

尝试将myPage投射到您的界面。

PagePermissions myPagePermissions = (PagePermissions)myPage;

Answer 3

Why are you using explicit implementation of the interface function? Think about changing the code line

Dictionary<string, Permission> PagePermissions.readPermissions()
{

to

public Dictionary<string, Permission> readPermissions()
{