C＃-在常规类中公开静态类？

Question

Here is an easy example:

ASP.NET provides several static classes based around the membership provider. We are forever using them in our pages. We also have a need to extend the base System.Web.UI.Page class. So, one thought we had was to expose the various static classes in our OurCompany.Web.UI.Page implementation.

We cannot use a variable:

System.Web.Security.Roles myRoles;

We cannot expose it as a property:

internal System.Web.Security.Roles Roles { get { return System.Web.Security.Roles; } }

We cannot inherit it:

internal class Roles : System.Web.Security.Roles

Is it possible to expose the static class?

Answer 1

What do you mean by "expose"? The static classes are already available to whoever wants to use them.

It sounds like you're possibly trying to derive from a class or use a property just to avoid typing as much - that's a bad idea. Inheritance is for specialization, not to make names easier to reach :) Just have a using directive:

using System.Web.Security;

and then you can use Roles.XXX wherever you want in that code.

Answer 2

我不一定知道为什么要这样做，但是您可以做的一件事是创建自定义Roles类，并从Static类中克隆方法，然后在这些方法中仅调用static类中的方法。

Answer 3

Are you trying to extend System.Web.UI.Page with your own extra methods/etc.? If so, why not use inheritance and make your Page inherit from System.Web.UI.Page. Then all you have to do is change your various ASPX pages to use your Page instead of the default. If this is what you want, check out this article for a decent example.