.net remove all whitespace from string code example

Example 1: c# remove spaces from string

string str = "This is a test";
str = str.Replace(" ", String.Empty);
// Output: Thisisatest

Example 2: how to remove all whitespace from a string in c#

using System.Linq;

  ... 

  string source = "abc    \t def\r\n789";
  string result = string.Concat(source.Where(c => !char.IsWhiteSpace(c)));

  Console.WriteLine(result);