c# quick if value null do this code example
Example 1: null coalescing operator c#
//the null coalescing operator for c# is ??
int? x = null;
int y = 9;
return x ?? y;
//Will return the value of x if x is not null else return y
Example 2: c# null conditional
//Return stirng representation of nullable DateTime
DateTime? x = null;
return x.HasValue == true ? x.Value.ToString() : "No Date";