Given following nullable
int? i = 10;
In case default value is needed, you can assign one using null coalescing operator,
GetValueOrDefault method or check if nullable int
HasValue before assignment.
int j = i ?? 0; int j = i.GetValueOrDefault(0); int j = i.HasValue ? i.Value : 0;
The following usage is always unsafe. If
i is null at runtime, a
System.InvalidOperationException will be thrown. At design time, if a value is not set, you'll get a
Use of unassigned local variable 'i' error.
int j = i.Value;