String IsNullOrEmpty C# Example

C# > String > Methods > IsNullOrEmpty

With this method you can test simultaneously test whether a String is null or its value is Empty.

Example

string s = "test";

bool b = String.IsNullOrEmpty(s); // false

           

s = null;

b = String.IsNullOrEmpty(s); // true

           

s = "";

b = String.IsNullOrEmpty(s); // true

s = " ";

b = String.IsNullOrEmpty(s); // false