Problems using "using" to access static methods

Asked

Viewed 36 times

0

I created in C# a static class with the methods Decode() and Encode() as in the code below:

namespace Crypt {
    public static class CaesarCipher {
        public static string Decode(string text, byte key) {
            // Meu código...
        }
        public static string Encode(string text, byte key) {
            // Meu código...
        }
    }
}

In my main code - archive Program.cs - I am trying to simplify the calling of these methods using the Directive using.

On my first attempt, I tried to create an alias as follows:

using Decode = Crypt.CaesarCipher.Decode;
using Encode = Crypt.CaesarCipher.Encode;

The problem is that the compiler generates the following error:

Program.cs(29,26): error CS1001: Identificador esperado

Reading the documentation, I discovered about the use of using static, which serves precisely to access the static members of a type without needing to qualify access with the name of the same. I tried to apply it to my code that way:

using static Crypt.CaesarCipher.Decode;
using static Crypt.CaesarCipher.Encode;

However, the compiler again generated an error:

Program.cs(29,19): error CS0106: O modificador "static" não é válido para este item

What I’m doing wrong?

c# static using

1 answer

3


You must statically import the class and not the method:

using static Crypt.CaesarCipher;

public class Program {
    public static void Main() => Decode("", 0);
}

namespace Crypt {
    public static class CaesarCipher {
        public static string Decode(string text, byte key) => "";
        public static string Encode(string text, byte key) => "";
    }
}

Behold working in the ideone. And in the .NET Fiddle. Also put on the Github for future reference.

Browser other questions tagged c# static using

You are not signed in. Login or sign up in order to post.