Question

I’m creating an object for my database and I found a weird thing, which I don’t understand:

I’ve an object which should reference a “language” by an ID, but this can be null, so my property is a int?(Nullable<int>)

so firstly I tried to use the object initializer:

myObject = new MyObject() 
{
    myNullableProperty = language == null ? null : language.id;
}

but it doesn’t work! It tell me that null cannot be converted to int

But if I it in a if/else structure, I can put null in a var and then assign it to my properties.

Why is this acting like this?

Answer 1

You may try casting the null to int? as the ?: operator requires both operands to return the same type:

myNullableProperty = language == null ? (int?)null : language.id