Asieh Asieh - 1 month ago 5
C# Question

Difference between IsNullOrEmpty and IsNullOrWhiteSpace in c#

what Difference between this commands in c#

string text= " ";
1-string.IsNullOrEmpty(text.Trim())

2-string.IsNullOrWhiteSpace(text)

Answer

http://msdn.microsoft.com/en-us/library/system.string.isnullorwhitespace.aspx

IsNullOrWhiteSpace is a convenience method that is similar to the following code, except that it offers superior performance:

return String.IsNullOrEmpty(value) || value.Trim().Length == 0;

White-space characters are defined by the Unicode standard. The IsNullOrWhiteSpace method interprets any character that returns a value of true when it is passed to the Char.IsWhiteSpace method as a white-space character.