The USING keyword in C#: How to clean unnecessary using directives in Visual Studio

The Autodidactic Hacker

Using keyword in C#

There are two ways of using the using keyword in C#:

  1. As a statement
  2. As a directive

Using keyword as a statement

MSDN says the using keyword

Provides a convenient syntax that ensures the correct use of IDisposable objects.

This is also a way of saying that this is the standard way of releasing unmanaged resources. The following is an example of its usage:

Using keyword as a directive

This is the most common usage of the using keyword. The following example shows how using keyword is used to access types in a namespace. This practice of using the using directives to access types in a namespace allows the developer to avoid fully qualifying the type. This save a lot of time and typing.

Another use of using is to create aliases. An excellent discussion on this topic can be found in this Stackoverflow thread.

Cleaning…

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