Best practice for denoting empty string - C# [duplicate]

This question already has answers here: Closed 12 years ago.

Possible Duplicates:

In C#, should I use string.Empty or String.Empty or “” ?

What is the difference between String.Empty and “”

Should I use:

 - string.Empty
 - String.Empty
 - ""

wh开发者_如何学编程en I want to return an empty string from a method (or anywhere else for that matter)

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String.Empty & string.Empty are exactly the same.