Use query parameter to automatically select a checkboxes choice?

[Sheila-SEMI]

We have a form with a "interests" field that is being shown as checkboxes. We'd like to be able to use a link to the page with a query parameter that would automatically check one of the boxes on the form based on the value of the query parameter. This would happen when the page/form is first displayed.

Here's the page with the "interests" field: https://discover.semi.org/technology-communities-subscription-registration.html

Usage example would be, if there is an email talking about cyber security (or a web page)  then there could be a link to the above subscription page and the "cyber security" checkbox would automatically be checked. 

Is there a way to do this with Javascript? Any help is appreciated!

Thanks,

Sheila

[SanfordWhiteman · Accepted solution]

You can use the all-purpose auto-fill code at

MktoForms2 :: KV HTML w/Auto-Fill and Cascade v1.1.2

Download the FormsPlus::Util JS and upload it to your Design Studio and then include it as shown in the HTML pane.

Then after FormsPlus::Util, include the local <script> as shown in the JS pane.

Your config block would be like

var fieldFillRules = [      
  {
    name : "Interest_Tech_Community__c",
    channel: "query",
    selector: "interest"
  }
];

[Sheila-SEMI]

@SanfordWhiteman Thank you!

[Sheila-SEMI]

@SanfordWhiteman I'm so sorry for the delay in fully responding. I finally was able to implement today and all is working like a champ. Thank you for this great code - and for all you do for so many of us in the community! 

Sheila