Javascript to display an alert on data change

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Posted on by Iain_C_54

112

Hi,

I need some help in correcting an error which is appearing when the postcode is being altered in CRM2013. There is javascript which is suppose to display an alert to advise this has been changed and to check correct.

To be honest I dont really know java but on reading a bit online about I would of expected to see the Xrm.Utility.alertDialog function on the field’s onChange but this is not there.

The code at present is

function PostCode_OnChange() {
var postCodeField = 'address1_postalcode';
var postCodeValue = Xrm.Page.getAttribute(postCodeField).getValue();
if (postCodeValue) {
alert("The post code has changed, please ensure correct");

The error message advised

Error:Unable to get property 'getValue' of undefined or null reference

Anyone able to point me in the direction of where the code is going wrong and how to fix?

Thanks

Iain

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Mahendar Pal 45,095 on at

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Hello,

Most probably field name is not correct or some has removed this field from entity form, so make sure your field name is correct and placed over form, you can change your code like below

var postCodeField = 'address1_postalcode';

if(Xrm.Page.getAttribute(postCodeField)!=null)

{

var postCodeValue = Xrm.Page.getAttribute(postCodeField).getValue();

if (postCodeValue) {

alert("The post code has changed, please ensure correct");

}

}

Thanks

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Aileen Gusni 44,524 on at

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Hmm Lain,

I think you should change the if here:

if (postCodeValue) -->because this is will not return true anyway, since this is field value, a string, not boolean

to if (postCodeValue != null)

So:

function PostCode_OnChange() {

var postCodeField = 'address1_postalcode';

var postCodeValue = Xrm.Page.getAttribute(postCodeField).getValue();

if (postCodeValue !=null) {

alert("The post code has changed, please ensure correct");

}

}

Hope this helps.

Thanks

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Mahendar Pal 45,095 on at

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Hi Aileen,

It will work

if (postCodeValue) // this will check if this field has some value or not.

Thanks

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Mohsin Ali 3,634 on at

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Iain, you cannot fire the onChange event for any of the field added in composite. As in this case 'address1_postalcode' is actually not in the form but in the composite field of address.

A better way to handle onchange events on individual fields of composite field, is to add a hidden section to your form, and add each of the individual address fields into this section. You can then add JavaScript event handlers to the individual fields which will also be applied to the fields in the composite fly-out menu.

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Iain_C_54 112 on at

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HI HIMBAP,

Thanks.

The field name was incorrect in the code, however putting in the correct name 'a_postcode'

I am now getting another error message advising of an error with the fields customized event

Field: a_postcode

Event :onchange

Error : 'PostCode_Onchnage' is undefined.

The fun of unwrapping someones code!

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Aileen Gusni 44,524 on at

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Iain

Seems you missed some bracket

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Iain_C_54 112 on at

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Hi Moshin Ali,

The way the form is set up the data is not entered in a composite. The address fields are all individually shown on the form.

but i understand what your saying if it were to be part of a composite

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Mahendar Pal 45,095 on at

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Please check if all brackets are there, otherwise share you code here for inquiry

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Iain_C_54 112 on at

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As far as i can see all the brackets are there.

function PostCode_OnChange() {

var postCodeField = 'a_postcode';

var postCodeValue = Xrm.Page.getAttribute(postCodeField).getValue();

if (postCodeValue) {

alert("The post code has changed, please ensure correct");

}

}

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Mohsin Ali 3,634 on at

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Iain, as the postal code is not bit field so you must change the 'if'

function PostCode_OnChange() {

var postCodeField = 'a_postcode';

var postCodeValue = Xrm.Page.getAttribute(postCodeField).getValue();

if (postCodeValue != null) {

alert("The post code has changed, please ensure correct");

}

}

Also, put valid function name into onChange event.

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