System.NullReferenceException thrown despite of properly initialised object

Question

I'm trying to write an inventory system for an RPG. I have custom type called 'Item', and a class called 'Bag'. An item can be put into a bag with this function:

public Item aw = new Item();
public void PutIn(Item aw)
{
    Contents[Index]=aw;
    Index++;        
}

When I call the function with

Bag.PutIn(someItem);

in the main code it throws a System.NullReferenceException. By researching the issue I found out that this is usually caused by improperly initialised objects, but in this case I did initialise the object with Item aw = new Item();. What am I doing wrong?

Contents[Index]=aw; is throwing the System.NullReferenceException. How do you initialize Contents? — ray
– ray, Commented Mar 19, 2014 at 8:24
We need to see more of your code, what you've included is not enough. — user1413338
– user1413338, Commented Mar 19, 2014 at 8:26

semao · Accepted Answer · 2014-03-19 08:37:25Z

1

Its not the Item object that is not initialized. You probably didn't initialize "Contents" array.

answered Mar 19, 2014 at 8:37

semao

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