arrays indices, xml schema, web services, C#

[turnips11]

Hi All,
I have an xml schema exposed through a web service and I am testing it with entering different values into 3 array indices. But when I run it it just enters the last array index values 3 times instead. Can anyone tell me how I am supposed to enter all the values at once into each of the different indices? Here is the onButton_Click function I wrote with C#:

localhost.PurchaseOrder oPO;
localhost.PurchaseOrderArticlesArticle oPOAA;

localhost.ApprovePurchaseOrder_Orchestration_1_WS_ PO_Port oWSMethodCall;

oPO = new localhost.PurchaseOrder();
oPOAA = new localhost.PurchaseOrderArticlesArticle();
oPO.Articles = new localhost.PurchaseOrderArticlesArticle[10];
oWSMethodCall = new localhost.ApprovePurchaseOrder_Orchestration_1_WS_ PO_Port();

oPO.PONum = System.Guid.NewGuid().ToString();
oPO.Total = 2.00M;
oPO.ToSupplier = System.Guid.NewGuid().ToString();
oPO.ApprovalState = 0;
oPO.IssuedBy = "[e-mail]";


oPOAA.SupplierArticleGUID = System.Guid.NewGuid().ToString();
oPOAA.SupplierArticlePriceGUID = System.Guid.NewGuid().ToString();
oPOAA.Quantity = 9;
oPO.Articles[0] = oPOAA;

oPOAA.SupplierArticleGUID = System.Guid.NewGuid().ToString();
oPOAA.SupplierArticlePriceGUID = System.Guid.NewGuid().ToString();
oPOAA.Quantity = 2;
oPO.Articles[1] = oPOAA;

oPOAA.SupplierArticleGUID = System.Guid.NewGuid().ToString();
oPOAA.SupplierArticlePriceGUID = System.Guid.NewGuid().ToString();
oPOAA.Quantity = 55;
oPO.Articles[2] = oPOAA;

oWSMethodCall.Operation_1(oPO);

I would appreciate any help!
Thanks

[jkmyoung]

Since you have 3 different localhost.PurchaseOrderArticlesArticle oPOAA;
you either need to declare 3 different variables, or initialize a new one each time you add it. I suggest initializing each one before you use it:

oPOAA = new localhost.PurchaseOrderArticlesArticle();
oPOAA.SupplierArticleGUID = System.Guid.NewGuid().ToString();
oPOAA.SupplierArticlePriceGUID = System.Guid.NewGuid().ToString();
oPOAA.Quantity = 9;
oPO.Articles[0] = oPOAA;
 
oPOAA = new localhost.PurchaseOrderArticlesArticle();
oPOAA.SupplierArticleGUID = System.Guid.NewGuid().ToString();
oPOAA.SupplierArticlePriceGUID = System.Guid.NewGuid().ToString();
oPOAA.Quantity = 2;
oPO.Articles[1] = oPOAA;
 
oPOAA = new localhost.PurchaseOrderArticlesArticle();
oPOAA.SupplierArticleGUID = System.Guid.NewGuid().ToString();
oPOAA.SupplierArticlePriceGUID = System.Guid.NewGuid().ToString();
oPOAA.Quantity = 55;
oPO.Articles[2] = oPOAA;

[turnips11]

Hi,
Well I did what you said and it worked, then I incorporated it with a datagrid and that also worked, but now I was wondering if it is possible the other way around, using this exact example from a web service exposing an xml schema to populate a datagrid?

I appreciate any advice!!
Shaz