multiple conditions with if else

December 28, 2021

var car = repository.Get(id);
if(car != null)
{
  if(car.AdditionalInfo != null)
  {
     if(car.AdditionalInfo.CarOwner.Status == "USA")
     {
        ...
     }
     else
     {
       .. do something for
     }
  }
  else
  {
     // create additional info and save
  }
}
else
{

}

Having following situation in mind with multiple if conditions, is there some cleaner way to write this?
Don’t focus on the Status property, rather to the flow of if else.

>Solution :

You can use the null conditional operator ?.

if (car?.AdditionalInfo?.CarOwner?.Status == "USA")
{
...
}

If car, or AdditionalInfo, or CarOwner are null, then everything on the left will resolve to null, otherwise you will get the status, and then you can make your comparison.