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D365 JavaScript: Navigating Autocomplete Control and Address Copying Challenges


Microsoft Dynamics 365 (D365) is a powerful platform that allows businesses to manage various aspects of their operations. Leveraging JavaScript in D365 enables developers to enhance user experience and tailor the application to specific needs. In this blog, we’ll delve into a real-world scenario involving D365 JavaScript, where we encounter an intriguing challenge involving an autocomplete control and address copying.

The Challenge:

Imagine you’re customizing a D365 form, and you have a requirement to provide a user-friendly way for users to select a country using an autocomplete control. Additionally, you’re tasked with creating a checkbox that, when selected, copies all fields from Address 1 to Address 2. While implementing this, you encounter an issue: the JavaScript code you’ve used works seamlessly for all fields except the autocomplete control. Let’s explore this challenge further and discuss the solution you devised.

The JavaScript Code:

The JavaScript code you’ve provided attempts to handle the country field’s autocomplete control and the copying of fields from Address 1 to Address 2. While the code successfully copies field values for text fields, the autocomplete control poses a unique problem. This code works fine for copying the text address fields. For the autocomplete control, we have to save and refresh the page to see the updates.


To get around this problem, I added the following code:

try {
  const element = parent.document.querySelector('[data-id="address2_country.fieldControl_container"] .wj-form-control[aria-label="Country"]');

  if (element) {
      element.outerHTML ='<input class="wj-form-control" style="font-weight: 600; color: rgb(0, 0, 0);" aria-label="Country" readonly type="text" value="' + newFieldValue + '">';
} catch (e) {

In this snippet, you use the `setValue` method to set the value of the ‘address2_country’ attribute to `newFieldValue`. Subsequently, you attempt to manipulate the autocomplete control by locating the corresponding element and replacing it with an input element containing the new value.

The Autocomplete Control Challenge:

The issue you’re encountering with the autocomplete control stems from its complex nature. Autocomplete controls in D365 often involve intricate components and interactions that standard text input fields do not exhibit. My approach was to directly manipulating the element’s HTML element.


Working with D365’s JavaScript capabilities can be immensely rewarding, but it can also present unique challenges, as demonstrated by the scenario of the autocomplete control and address copying. While your initial approach exhibited promise, autocomplete controls often require more intricate handling. By refining your strategy and exploring D365’s native methods and community resources, you can conquer this challenge and unlock the full potential of JavaScript customization in D365. Remember, JavaScript in D365 is a powerful tool – with a bit of creativity and perseverance, you can overcome any obstacle it presents.

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