Can't compare T value1 with T value2 = default(T). Why and how to do that on C#?

Question

I\'m trying the following:

T value1 = el.value; // it\'s of type T already
T value2 = default(T);
if (value1 != value2) // gives the following error: Operato         


        

Answer 1

if you use value1.equals(value2) then you have a problem with null values. Better:
object.equals(value1,value2)

Or for reference types (be careful):
object.referenceEquals(value1,value2)