Field Javascript OnChange event fired when form loaded

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Posted on by nwood

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This may seem like a simple one, but I cant find the right answer from all my searches

I have a JS function that is called form a field OnChange event that I only want to run when the user actually changes the values.

Currently it also calls the function when the form is loaded. Is there any way to ensure that this function is only called when the user performs the change in the form?

Nick

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ajyendra 1,738 on at

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Hi,

It probably because in load you set that field or you Change on that field on Form Load . So that it will call onChange function.

Can you share us webresources where you wrote both Onload and OnChange Code(full Code) that might help to figure out easily.

Thanks

Ajyendra

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Kalpavruksh D365 CoE 2,545 on at

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Hi,

Please go to onchange event of the desired field and call the function. Do not add it on onload event so that it will be triggered only on onchange event and not on onload event.

Please check the following link for your reference

https://gauravtempe.com/using-javascript-in-dynamics-365-beginners-part-1/

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Temmy Wahyu Raharjo 2,916 on at

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Hi,

ajyendra is correct. If in onload you have function that will change another property. That event will be triggered also. It's because since 2016, Crm adding function to trigger related event on the attribute also. So if you don't want to be triggered from OnLoad, you need to add flag to differentiate between called from onload or on the event itself. Example:

var isFromOnLoad; function onLoad() { isFromOnLoad = true; ... Xrm.Page.getAttribute('attribute1').setValue(1); isFromOnLoad = false; } function attribute1OnChanged() { if(isFromOnLoad) return; //do attribute1onchanged }

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nwood 102 on at

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I found the issue:

I am using the Dependant Optionset JS library to filter parent/child related optionsets. In order to set the filter on load, it calls:

parentAttribute.fireOnChange

I now need to figure out how to use this library with the onchange function for the target field

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