Step 2: Extend the ARDocStatus class

Before you add the Postponed state to the workflow, you need to add a string constant and class to the extension of the ARDocStatus class. You also need to add a corresponding value to the field that holds the record's status on the Invoices (SO303000) form. Do the following:

1. In the SOInvoiceRepairOrder_Workflow.cs file, extend the ARDocStatus class by adding the following code.

       public class ARDocStatus_Postponed : ARDocStatus
       {
           public const string Postponed = "O";
           public class postponed : BqlType<IBqlString, string>.Constant<postponed>
           {
               public postponed()
                   : base("O")
               {
               }
           }
       }

2. Add a combo box value to the Status box on the Invoices form by calling the WithFieldStates method in the lambda expression for the UpdateScreenConfigurationFor method, as the following code shows.

                   .WithFieldStates(fs =>
                   {
                       fs.Add<ARInvoice.status>(state =>
                           state.SetComboValue(ARDocStatus_Postponed
                             .Postponed, "Postponed"));
                   })

3. Save your changes.