C# Programming/Keywords/global

< C Sharp Programming < Keywords

The global keyword is useful in some contexts to resolve ambiguity between identifiers. If you have a conflict between a class name and a namespace, for example, you can use the global keyword to access the namespace:

namespace MyApp
{
    public static class System
    {
        public static void Main()
        {
            global::System.Console.WriteLine("Hello, World!");
            // if we had just used System.Console.WriteLine, 
            // the compile would think that we referred to a 
            // class named "Console" inside our "System" class.
        }
    }
}

global does not work in the following situation, however, as our System class does not have a namespace:

public static class System
{
    public static void Main()
    {
        global::System.Console.WriteLine("Hello, World!");
        // "System" doesn't have a namespace, so the above
        // would be referring to this class!
    }
}

C# Keywords

`abstract`	`as`	`base`	`bool`	`break`
`byte`	`case`	`catch`	`char`	`checked`
`class`	`const`	`continue`	`decimal`	`default`
`delegate`	`do`	`double`	`else`	`enum`
`event`	`explicit`	`extern`	`false`	`finally`
`fixed`	`float`	`for`	`foreach`
`goto`	`if`	`implicit`	`in`	`int`
`interface`	`internal`	`is`	`lock`	`long`
`namespace`	`new`	`null`	`object`	`operator`
`out`	`override`	`params`	`private`	`protected`
`public`	`readonly`	`ref`	`return`	`sbyte`
`sealed`	`short`	`sizeof`	`stackalloc`
`static`	`string`	`struct`	`switch`	`this`
`throw`	`true`	`try`	`typeof`	`uint`
`ulong`	`unchecked`	`unsafe`	`ushort`	`using`
`var`	`virtual`	`void`	`volatile`	`while`

Special C# Identifiers

`add`	`alias`	`get`	`global`	`partial`
`remove`	`set`	`value`	`where`	`yield`

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