Condition in Conditional (Ternary) Operator

Question

How can I implement this using ternary operator?

if(UnitType == null)
{
    a = ElevationType
}
else
{
    a = UnitType
}

Ternary operator

a = UnitType == null ? ElevationType : UnitType;

Now I want something like this

if(UnitType == null)
{
   if(ElevationType == null)
   {
    a = StructureType
   }
   else{
    a = ElevationType
   }
}
else
{
    a = UnitType
}

Can I achieve this using ternary operator? If not, what should be done?

Answer 1

a = (UnitType == null) ? (ElevationType ?? StructureType) : UnitType;

But I stand by my comment: this is harder to understand than the if-else would be.

Or, possibly,

a = UnitType ?? ElevationType ?? StructureType;

That's reasonably clear if you're familiar with the ?? operator.