C# isnull or empty

If you want to check the property value or string which is Null or not using the following code in c# .Net.

Employee emp = new Employee();
emp.firstname = "Thivan";
if (!string.IsNullOrEmpty(emp.firstname.ToString())) 
            {
             //your code here
               return true;
            }
            else {
                //your code here
               return false;
            }

The above example clears how to use IsNullOrEmpty, which will return true or false. It indicates whether the property value or string is empty or null.