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OnChange event handler in Dataverse entity form

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Posted on by Community Power Pla... Microsoft Employee

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 9,482 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
OOlashyn 3,498 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.
Fubar 17 Super User 2026 Season 1 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'.