Question

I have class that has a property that is of type string[].

I need to create another array item, do I have to reset the size and copy all the previous items over?

Answer 1

You can use Array.Resize which will preserve the contents of the array.

e.g.

var array = myClass.SomeArrayProperty;
Array.Resize(ref array, newSize);
myClass.SomeArrayProperty = array;

You need to use a temporary variable because properties cannot be used as ref arguments.