Question

How do I return a collection of objects from a webmethod? And can this collection of objects be of different types – say of these 3 classes,

private class ClassA 
{
  int A1;
  int A2;
}

private class ClassB
{
  int B1;
}

private class ClassC
{
  int C1;
}

ClassA objA = new ClassA(...);
ClassB objB = new ClassB(...);
ClassC objC = new ClassC(...);

How can I return the objects, objA, objB and objC from a method?

Answer 1

Return them as an array or list. I don’t have an IDE in front of me, but it should be like

[WebMethod]
public object[] GetObjects()
{
   ...
   return new object[] { objA, objB, objC };
}

Even better if they inherit from the same base class or interface.