P 675 addressList exercise

ChristopherFromBC · May 29th, 2007, 03:15 PM

I get an object reference not set to instance of object exception being thrown here in this sample code. This is when I set a Messagebox right after the catch statement Is there any reason why this might happen ? and then right after that appears the following:
An unhandled exception of type 'System.ArgumentNullException' occurred in system.windows.forms.dll

Additional information: Value cannot be null.

My current XML file has no information missing in any of the fields.
It looks like this:

Code:

 <?xml version="1.0" ?> 
- <Address xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <FirstName>Christopher</FirstName> 
  <LastName>Mais</LastName> 
  <CompanyName>None</CompanyName> 
  <Address1>853 east 229 St</Address1> 
  <Address2> 1st fl</Address2> 
  <City>Bronx</City> 
  <Region>New York</Region> 
  <PostalCode>10466</PostalCode> 
  <Country>US</Country> 
  <Email>[email protected]</Email> 
  </Address>

BrianWren · May 31st, 2007, 03:55 PM

The information you have provided is unhelpful. You have not given a clue as to what the code that throws the error is up to when you get this error.

You can increment a variable line by line as your Try part is running, and the value that this variable is left at when you enter the Catch will then give a clue what line is raising the error.

But at any rate, it will be hard to ascertain what is wrong with your code without knowing what the code is...