Step 1: Defining the Action in the Graph

To define the CreateInvoice action in the RSSVWorkOrderEntry graph, do the following:

1. In the RSSVWorkOrderEntry graph, add the following code:
   Tip: The CreateInvoice action performs an asynchronous operation. For details on implementing actions, see the T230 Actions training course.

           private static void CreateInvoice(RSSVWorkOrder workOrder)
           {
               using (var ts = new PXTransactionScope())
               {
                   // Create an instance of the SOInvoiceEntry graph.
                   var invoiceEntry = PXGraph.CreateInstance<SOInvoiceEntry>();
                   // Initialize the summary of the invoice.
                   var doc = new ARInvoice()
                   {
                       DocType = ARDocType.Invoice
                   };
                   doc = invoiceEntry.Document.Insert(doc);
                   doc.CustomerID = workOrder.CustomerID;
                   invoiceEntry.Document.Update(doc);
   
                   // Create an instance of the RSSVWorkOrderEntry graph.
                   var workOrderEntry = PXGraph.CreateInstance<RSSVWorkOrderEntry>();
                   workOrderEntry.WorkOrders.Current = workOrder;
   
                   // Add the lines associated with the repair items
                   // (from the Repair Items tab).
                   foreach (RSSVWorkOrderItem line in 
                    workOrderEntry.RepairItems.Select())
                   {
                       var repairTran = invoiceEntry.Transactions.Insert();
                       repairTran.InventoryID = line.InventoryID;
                       repairTran.Qty = 1;
                       repairTran.CuryUnitPrice = line.BasePrice;
                       invoiceEntry.Transactions.Update(repairTran);
                   }
                   // Add the lines associated with labor (from the Labor tab).
                   foreach (RSSVWorkOrderLabor line in workOrderEntry.Labor.Select())
                   {
                       var laborTran = invoiceEntry.Transactions.Insert();
                       laborTran.InventoryID = line.InventoryID;
                       laborTran.Qty = line.Quantity;
                       laborTran.CuryUnitPrice = line.DefaultPrice;
                       laborTran.CuryExtPrice = line.ExtPrice;
                       invoiceEntry.Transactions.Update(laborTran);
                   }
   
                   // Save the invoice to the database.
                   invoiceEntry.Actions.PressSave();
   
                   // Assign the generated invoice number and save the changes.
                   workOrder.InvoiceNbr = invoiceEntry.Document.Current.RefNbr;
                   workOrderEntry.WorkOrders.Update(workOrder);
                   workOrderEntry.Actions.PressSave();
   
                   ts.Complete();
               }
           }
   
           public PXAction<RSSVWorkOrder> CreateInvoiceAction;
           [PXButton]
           [PXUIField(DisplayName = "Create Invoice", Enabled = true)]
           protected virtual IEnumerable createInvoiceAction(PXAdapter adapter)
           {
               // Populate a local list variable.
               List<RSSVWorkOrder> list = new List<RSSVWorkOrder>();
               foreach (RSSVWorkOrder order in adapter.Get<RSSVWorkOrder>())
               {
                   list.Add(order);
               }
   
               // Trigger the Save action to save changes in the database.
               Actions.PressSave();
   
               var workOrder = WorkOrders.Current;
               PXLongOperation.StartOperation(this, delegate () {
                   CreateInvoice(workOrder);
               });
   
               // Return the local list variable.
               return list;
           }

2. Add the following using directives to the RSSVWorkOrderEntry graph (if they have not been added yet).

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