Javascript error: TypeError: Cannot readt property '0' of null at

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Posted on by yleclerc

1,549

We just migrated from CRM 2011 to CRM 2016.

We are having a problem with one script that throws an error. The script is called on the case form when the contact is updated and when the form is saved. The script works fine if the contact field has a value, but it the field is empty, we get the error:

Javascript error: TypeError: Cannot readt property '0' of null at UpdateCourriel.

I'm not really good with javascript so any help is appreciated.

Here are both scripts that are called:

VideCourriel = function () {
window.Xrm.Page.getAttribute('new_courriel').setSubmitMode('always');
window.Xrm.Page.getAttribute("new_courriel").setValue(null);
};

UpdateCourriel = function () {
var contactid = window.Xrm.Page.getAttribute('responsiblecontactid').getValue()[0].id;

if (contactid !== null) {
var contact = $.odata.getOne("/ContactSet(guid'" + contactid + "')/EMailAddress1");

var courriel = "";
if (typeof contact !== 'undefined' && contact !== null && typeof contact.EMailAddress1 !== 'undefined') {
courriel = contact.EMailAddress1;
}

window.Xrm.Page.getAttribute('new_courriel').setSubmitMode('always');
window.Xrm.Page.getAttribute('new_courriel').setValue(courriel);
}
};

Thanks!

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Verified answer

Georgy on at

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Your problem is with following line:

window.Xrm.Page.getAttribute('responsiblecontactid').getValue()[0].id;

change it to

var contactIdValue = window.Xrm.Page.getAttribute('responsiblecontactid').getValue(); if (contactIdValue != null && contactIdValue.length > 0) { var contactId = contactIdValue[0].id; ... your code goes here. }

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Verified answer

a33ik 84,331 Most Valuable Professional on at

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Hello,

Try to use following code:

VideCourriel = function () {

window.Xrm.Page.getAttribute('new_courriel').setSubmitMode('always');

window.Xrm.Page.getAttribute("new_courriel").setValue(null);

};

UpdateCourriel = function () {

if (window.Xrm.Page.getAttribute('responsiblecontactid').getValue() == null)

return;

var contactid = window.Xrm.Page.getAttribute('responsiblecontactid').getValue()[0].id;

if (contactid !== null) {

var contact = $.odata.getOne("/ContactSet(guid'" + contactid + "')/EMailAddress1");

var courriel = "";

if (typeof contact !== 'undefined' && contact !== null && typeof contact.EMailAddress1 !== 'undefined') {

courriel = contact.EMailAddress1;

}

window.Xrm.Page.getAttribute('new_courriel').setSubmitMode('always');

window.Xrm.Page.getAttribute('new_courriel').setValue(courriel);

}

};

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jlattimer 24,562 on at

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You'd need to check if contact has a value before trying to extract the id. As you've seen if contact is null, trying to get the id returns an error

var contact = window.Xrm.Page.getAttribute('responsiblecontactid').getValue(); if (!contact)
return; var contactid = window.Xrm.Page.getAttribute('responsiblecontactid').getValue()[0].id;

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yleclerc 1,549 on at

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Thank you all!! I really should learn JS. Tried all 3 and they all work.

You guys are the best!!!

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