How to define data types directly in a namespace

M3rein Published at Dev

M3rein

What I'm trying to find out whether you can have something like underneath or not:

namespace myNamespace
{
    public string myString;
}

I couldn't find anything that explained this, probably because of my terrible searching keywords. Could anyone tell me if there is a way to do this or not?

If this is possible, I may have goofed up something. Either way, I'd like to know.

I wanted to know how to do this because I want to have access to this in the whole namespace without having to go something.myString when I'm inside a different class. This was something that seemed logical in my eyes, but it's apparently not possible.

Dmitry Bychenko

You can't declare field directly in the namespace:

    // doesn't compile
    namespace myNamespace
    {
        public string myString; // <- syntax error
    }

but you can emulate such a syntax with a help of using static (C# 6.0+):

    namespace MyLibrary 
    {
        // put myString within a static class
        public static class MyStorage 
        {
            // let turn field into property
            public static string myString {get; set;}
        }
    }

Then use the static class with using static:

    // please, notice "using static"
    using static MyLibrary.MyStorage;

    namespace myNamespace
    {
        public class MyClass 
        {
            public void MyMethod() 
            {
                myString = "abc"; // as if it has been declared in the namespace

                string test = myString;  
                ...
            }
        } 

    }

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