Struggling to run a script to change colours in a drop down list

The code seems fine. Check the JS Console for errors when changing the field's value.

Also, make sure to set the option to commit the selected value immediately and to disable the Fields Highlighting option in the application to be able to see the new color.

It appears that you're attempting to use a script to change the background color of a dropdown list in a PDF form based on the selected answer. The script you've provided is on the right track, but there are a couple of issues with it. Below is a corrected version of your script:

```javascript
// Run the script when the dropdown selection changes
this.getField("YourDropDownFieldName").setAction("Keystroke", function() {
var selectedValue = event.value;
var dropdownField = event.target;

if (selectedValue === "New") {
dropdownField.fillColor = color.red;
} else if (selectedValue === "Renewal") {
dropdownField.fillColor = color.magenta;
} else if (selectedValue === "Set Up Only") {
dropdownField.fillColor = color.yellow;
} else {
dropdownField.fillColor = color.transparent;
}
});
```

Please make the following changes:

1. Replace `"YourDropDownFieldName"` with the actual name of your dropdown field in the `this.getField` method. You should use the name of the dropdown field as it appears in your PDF form.

2. This script is set to run when a keystroke event occurs in the dropdown field. It checks the selected value and changes the background color accordingly. This should help you achieve the desired behavior.

3. Make sure to place this script in the "Custom Calculation Script" section of the dropdown field's properties in Adobe Acrobat. This is where the script will be executed when the dropdown selection changes.

By making these adjustments and placing the script in the appropriate location, your dropdown list should update its background color based on the selected value as expected. Credit Infopulsepro [Link removed]

What happens when you use it?