Step 1: Adding a Graph Action

In this step, you will create an extension of a graph of the Invoices (SO303000) form. In the extension, you will add an action that opens a repair work order. Do the following:

1. Learn the name of the graph where the action should be added:
   1. On the Invoices form, click Ctrl + Alt, and click the Summary area of the form.
   2. In the Element Properties dialog box, notice the name in the Business Logic box: SOInvoiceEntry.
2. In the PhoneRepairShop_Code project, create an extension of the SOInvoiceEntry graph, as the following code shows.

   namespace PhoneRepairShop
   {
       public class SOInvoiceEntry_Extension : PXGraphExtension<SOInvoiceEntry>
       {
       }
   }

   Tip:

   Use Acuminator to suppress the PX1016 error in a comment. In this activity, for simplicity, the extension is always active.
3. In the graph extension, implement the viewOrder action, as the following code shows.

           public PXAction<ARInvoice> ViewOrder;
           [PXButton, PXUIField(DisplayName = "View Repair Work Order")]
           protected virtual IEnumerable viewOrder(PXAdapter adapter)
           {
               var orderEntry = PXGraph.CreateInstance<RSSVWorkOrderEntry>();
               var order = orderEntry.WorkOrders.Search<RSSVWorkOrder.invoiceNbr>(
                   Base.Document.Current.RefNbr);
               if (order == null)
                   return adapter.Get();
   
               orderEntry.WorkOrders.Current = order;
               throw new PXRedirectRequiredException(orderEntry, true,
                   nameof(ViewOrder))
               {
                   Mode = PXBaseRedirectException.WindowMode.NewWindow
               };
           }

4. Add the following using directives.

   using PX.Data;
   using PX.Objects.AR;
   using System.Collections;
   using PX.Objects.SO;

5. Save your changes.