How to create a reusable method to check null or an empty string.
This Function shows how to pass a String value and check if it is null or empty. This is the most optimized and fastest way to check this. You can also wrap this in a separate utility class.
////// IsNullOrEmpty method will check for if a string is empty or Null /// /// ///returns Boolean /// public static bool IsNullOrEmpty(string stringVar) { bool b = false; if (stringVar == null || stringVar.Length == 0 || stringVar == " ") { b = true; } return b; }
How to use this method?
string UserName = "";
// Check if UserName is empty or null
if (!IsNullOrEmpty(UserName))
{
//Place your code logic when it is not null or empty
}
