Using C#.

How can I access another class in a different .cs file.

For example, how can I get myclass2 in namespace2 to access something in myclass1 namespace1?

////////////////////////////////
//one.cs
using System;

namespace namespace1
public class myclass1
{
public string mystring = ""
}
////////////////////////////////

////////////////////////////////
//two.cs
using System;

namespace namespace2
public class myclass2
{

public static void Main ()
{
///Access namespace1.myclass1 in one.cs here.
}

}
////////////////////////////////