Question

I’m getting an exception and I’m not seeing what I’m missing.

I have an object model called MyComposedModel and I’m creating a list of these by adding each element as they’re built.

I have this:

List<MyComposedModel> TheListOfModel = null;
MyComposedModel ThisObject = new MyComposedModel();

foreach (MyComposedModel in some list)
{
 ThisObject.Reset() //clears all properties
 ....
 TheListOfModel.Add(ThisObject)
}

And I’m getting Object reference not set to an instance of an object. on the Add(ThisObject) line.

What am I missing?

Thanks.

Answer 1

You have to initialize TheListOfModel first. Instead of:

List<MyComposedModel> TheListOfModel = null;

do this:

List<MyComposedModel> TheListOfModel = new List<MyComposedModel> ();