Acumatica refer custom field to another custom field on different screen - customization

Question

I have created 2 custom fields(UsrFFA and UsrFreeFreightDay) as below in the Customers Screen.Customers Screen
Then I created similar fields on the Sales Order Screen as below
Sales Order
I want these fields on Sales Order screen to populate values for respective Customer ID.
I went through the training material T200 and found this code
protected void SOOrder_CustomerID_FieldUpdated(PXCache sender,PXFieldUpdatedEventArgs e)
{
SOOrder order = e.Row as SOOrder;
BAccount customer =
PXSelectorAttribute.Select<SOOrder.customerID>(sender, order)
as BAccount;
if (customer != null)
{
Contact defContact = PXSelect<Contact,
Where<Contact.bAccountID, Equal<Required<Contact.bAccountID>>,
And<Contact.contactID, Equal<Required<Contact.contactID>>>>>
.Select(Base, customer.BAccountID, customer.DefContactID);
if (defContact != null)
{
ContactExt contactExt = PXCache<Contact>
.GetExtension<ContactExt>(defContact);
sender.SetValue<SOOrderExt.usrCRVerified>(order,
contactExt.UsrCreditRecordVerified);
}
}
}
I am not able to understand this code and how should I use it in my customization.

Answer 1

You should subscribe to FieldUpdated handler for the SOOrder.CustomerID field and populate your custom fields on the Sales Order screen in the same way as shown in Example 5.2: Inserting a Default Detail Data Record of the T200 training class:
protected virtual void ShipmentLine_ProductID_FieldUpdated(PXCache sender, PXFieldUpdatedEventArgs e)
{
// Obtain the new data record that contains the updated
// values of all data fields
ShipmentLine line = (ShipmentLine)e.Row;
line.Description = string.Empty;
if (line.ProductID != null)
{
Product product = PXSelectorAttribute.Select<ShipmentLine.productID>(sender, line) as Product;
if (product != null)
{
// Copy the product name to the description of the shipment line
line.Description = product.ProductName;
}
}
}
You might also check Step 3.1: Adding the FieldUpdated Event Handler (CustomerMaint) and Step 5.2: Customizing Business Logic for the Sales Orders form (SOOrderEntry) from the T300 training class for additional samples.
The code snippet below should accomplish desired results on the Sales Orders screen. If you still have issues understanding the code below, I highly recommend you to go through the T300 training class for very detailed hands-on exercises with step-by-step instructions.
public class SOOrderEntryExt : PXGraphExtension<SOOrderEntry>
{
public void SOOrder_CustomerID_FieldUpdated(PXCache sender, PXFieldUpdatedEventArgs e)
{
var order = e.Row as SOOrder;
if (order.CustomerID != null)
{
var customer = PXSelectorAttribute.Select<SOOrder.customerID>(sender, order) as BAccountR;
if (customer != null)
{
var customerExt = customer.GetExtension<BAccountExt>();
var orderExt = order.GetExtension<SOOrderExt>();
orderExt.UsrFFA = customerExt.UsrFFA;
orderExt.UsrFreeFreightDay = customerExt.UsrFreeFreightDay;
}
}
}
}

Answer 2

Customize the attributes on the SOOrder field in the following way:
For UsrFFA field
[PXDBString(100)]
[PXUIField(DisplayName="FFA", Visible = true, Enabled = false)]
[PXFormula(typeof(Selector<SOOrder.customerID, BAccountExt.usrFFA>))]
For UsrFreeFreightDay field
[PXDBString(100)]
[PXUIField(DisplayName="Free Freight Day", Visible = true, Enabled = false)]
[PXFormula(typeof(Selector<SOOrder.customerID, BAccountExt.usrFreeFreightDay>))]