Help with XML Serialization in C#

Hi Everyone,

I was wondering if someone could help me with this. I am sending requests and getting responses from a server using XML serialization. I have to make an XML request that looks like this.....

               My Name

                       My Street
                       My City
                       My State
                       12345

                                FAX

                                         123-456-7890



                                  HOME

                                           321-654-9870



                                   CELL

                                             500-894-4569

I need to populate this request with information to send to the server. Now, I already have the seialization and deserialization already programmed and working. My issue is that the tags need to be put in some kind of array. This wouldn't be that bad but some of the tags are nested deeper like the tags. I have the Contacts part in a class and the Telephone part as another class instantiated inside the Contacts class. Bottom line is I think I need to insert the group of Contact tags into an array to have a multiple group of Contact tags as needed for more than 1 contact.

My c# code looks like.......

EntityRequest request = new EntityRequest();

request.entityRequest.entity.entityName = "My Name";

request.entityRequest.entity.address.streetLineOne = "My Street";

request.entityRequest.entity.address.city = "My City";

request.entityRequest.entity.address.state = "My State";

request.entityRequest.entity.address.postalCode = "12345";

//The above code works fine, but when I try to use the array..

request.entityRequest.entity.contactList.contacts[0].description = "FAX";

request.entityRequest.entity.contactList.contacts[0].telephone.number = "123-456-7890";

I get the error "Object reference not set to an instance of an object" pointed at the array.

Could anyone help me put this in a proper array? I will provide more code and explainations if needed. Thanks to everyone in advance.

Regards,

Jay