Get to Know the Dynamics Web API .fireOnchange () Function

In the world of Dynamics 365 and Power Apps, the .fireOnChange() function is a powerful tool for developers. This function is part of the Client API and is used to trigger the OnChange event for a specific column programmatically. This tool is integral to utilizing JavaScript web resources to their fullest potential. Let’s dive into what this function does, how it works, and some practical use cases.

What is the .fireOnChange() Function?

The .fireOnChange() function is used to simulate the OnChange event on a column. This means that any scripts or logic that are tied to the OnChange event of that column will be executed as if the user had manually changed the value of the column and then moved focus away from it.

Syntax

The syntax for using the .fireOnChange() function is straightforward:

formContext.getAttribute("columnName").fireOnChange();

Here, formContext is the context of the form where the column exists, and “columnName” is the logical name of the column you want to trigger the OnChange event for.

When to Use .fireOnChange()?

There are several scenarios where you might want to use the .fireOnChange() function:

• Data Validation: If you have custom validation logic tied to the OnChange event of a column, you can use .fireOnChange() to ensure that this logic is executed after setting the column’s value programmatically.

• Cascading Changes: When changes in one column hould trigger updates in other columns, you can use .fireOnChange() to ensure that all dependent logic is executed correctly. This is particularly useful if you are setting a field programmatically with another… (Read the full post on www.beringer.net)

The post Get to Know the Dynamics Web API .fireOnchange () Function appeared first on CRM Software Blog | Dynamics 365.