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OnChange event handler in Dataverse entity form

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Hello Guys,

have you used event handlers in entity form?

My requirement is to on text changed of field on entity form I wanted to disable few fields on the same form. To test with I have added simple javascript code to print "hello world" on change of a field.

but , Javascript function doesn't trigger , so it doesn't happen anything.

can you able to share some of your suggestions.

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Power Apps portals

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oliver.rodrigues 9,368 Most Valuable Professional on at

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Hi, these threads might help:

https://community.dynamics.com/crm/f/microsoft-dynamics-crm-forum/292094/how-do-you-implement-an-on-change-event-for-a-text-field-in-the-dynamics-365-portal

https://powerusers.microsoft.com/t5/Power-Apps-Portals/Portals-Javascript-Changes-you-made-may-not-be-saved/td-p/800231

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OOlashyn 3,496 Most Valuable Professional on at

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Hi @Anonymous,

Event handlers in the form itself will not work on the Portal, they work only inside model-driven apps. You would need to add on change triggers in the Custom Javascript section of the form. Your code would look something like this:

$(document).ready(function () { // id of the field is its logical name $("#title").change(onTitleChange); }); function onTitleChange() { console.log("My title changed"); }

You can find more about working with Javascript for portal in this official doc. In general, I would advise you to google example on using code specifically on entity forms as code design to work inside dataverse won't work on the portal.

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Fubar 8,352 Super User 2025 Season 2 on at

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Its done often - as per the previous posts.
Not, sure if it is still the case but we came across an issue for an Entity Form popup (actually inline) rather than on a Web Page, where we had to change the (document).ready to another keyword than 'ready'.

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