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Restricting Event Handlers for ARInvoiceEntry and SOInvoiceEntry in Acumatica

Introduction

When working with Acumatica, developers often encounter challenges when dealing with shared DACs across multiple screens. One common scenario involves the ARInvoice DAC, which is used by both ARInvoiceEntry and SOInvoiceEntry graphs. If you need to differentiate event handler behavior between these two screens—for example, hiding custom fields on one screen but not the other—you may face complications, as events like RowSelected are triggered for both screens.

In this article, we’ll explore a practical solution using the BatchModule property to restrict event handlers based on the context of the graph.

The Challenge

Suppose you have a custom field on the ARInvoice DAC that you want to hide when the user is working in ARInvoiceEntry, but you want the field visible in SOInvoiceEntry. Since both graphs use the same DAC, any logic defined in the RowSelected or RowPersisting events will apply to both screens by default.

This shared behavior can lead to unintended consequences. For instance, a SetVisible call in RowSelected to hide the field in ARInvoiceEntry would also hide it in SOInvoiceEntry, which is not what we want.

The Solution

To restrict the event handlers to a specific graph, we can use the BatchModule property, which helps us determine the screen context. The BatchModule.SO is associated with SOInvoiceEntry, while BatchModule.AR is associated with ARInvoiceEntry. This allows us to tailor the behavior for each graph.

Below is an example implementation:

Explanation

  1. Event Identification:

The RowPersisting and RowSelected events are overridden. These are common triggers where such restrictions might be needed.

  1. Screen Context Detection:

The PXSiteMap.CurrentScreenID helps identify the current screen's context. By checking whether the ScreenID starts with BatchModule.SO, we can differentiate between SOInvoiceEntry and ARInvoiceEntry.

  1. Custom Logic:

In the RowSelected event, we used the PXUIFieldAttribute.SetVisible method to hide or show a field (yourCustomField) based on the graph context.

  1. Early Exit:

For the RowPersisting event, we exit early if the current screen is SOInvoiceEntry, ensuring the logic applies only to ARInvoiceEntry.

 

Benefits of This Approach

Context-Specific Logic: Ensures that your customizations are applied to the intended screen only.

Code Reusability: Leverages shared DACs without duplication of code.

Maintainability: Keeps the code organized and reduces unintended side effects.

Key Takeaways

     Use BatchModule and PXSiteMap.CurrentScreenID to determine the graph context when dealing with shared DACs.

     Always test your event handlers in both screens to ensure correct behavior.

     Keeping your logic modular and specific to the graph improves both performance and clarity.

By following this approach, you can handle event customization more effectively in Acumatica, providing tailored functionality for your users while maintaining clean and manageable code.

Thank you for reading! If you have any questions or need further guidance, feel free to leave a comment below.