Ok, I can't believe what I am seeing.  I am sure I do this other places with
no problems, but I sure can't here.

I have some code that is indexing into the ItemArray in a DataSet's DataRow.
I basically want to change the value of the data stored at a particular
index in the ItemArray.  Ideally, I would like for my code to look like this
(pay attention to the index of ItemArray):

row.ItemArray[(int)GridColumnIndexes.Part - 1] =
 itemArray[(int)GridColumnIndexes.Part - 1].ToString().Substring(3);

This would allow me to chop off the first 3 characters.

However, the expression (int)GridColumnIndexes.Part - 1 is not evaluating to
the correct index in the ItemArray!!!

First, here is my GridColumnIndexes enum:

       protected enum GridColumnIndexes : int
       {
           Select = 0,
           Line,
           Part,
           GroupCode,
           BackorderQuantity,
           OrderDate,
           PO,
           OrderNumber,
           OrderType,
       }

The Part value is 2, so I should be indexing into the 2nd element (with an
index of 1) in ItemArray.

So, the statement:

row.ItemArray[(int)GridColumnIndexes.Part - 1] =
 itemArray[(int)GridColumnIndexes.Part - 1].ToString().Substring(3);

should be the same as:

row.ItemArray[1] =
 itemArray[(int)GridColumnIndexes.Part - 1].ToString().Substring(3);

but it is not.

Please look at the following image from my debugger:  I am going to try to
encode an img link, but just in case, here is a link to the image:

http://www.netsplore.com/PublicPortal/Default.aspx?tabid=276

<img src='http://www.netsplore.com/PublicPortal/Default.aspx?tabid=276'>

Notice that in the watch window,

   row.ItemArray[(int)GridColumnIndexes.Part - 1]

and

   row.ItemArray[index]

are not accessing the same element of ItemArray even though I set index to
(int)GridColumnIndexes.Part - 1.

Anyone have any idea what is going on here?

Thanks.