Re: Extension Object : Javascript error - Qlik Community

Report Inappropriate Content · ‎2013-01-23

Hi All,

I am creating an extension object in QlikView 11 to refresh the web page. I am using the following code -

Qva.AddDocumentExtension('QlikView/Examples/Refresh', function () {

function ReloadPage(){

location.reload();

};

$(document).ready(function() {

setTimeout("ReloadPage()", 10000);

});

However I am getting error - "Unable to get value of the property 'prototype': object is null or undefined".

Can anyone tell me how to fix this error ?

Thanks,

Samir Prasadi

alex_nerush · ‎2013-01-23

try to change following line

setTimeout("ReloadPage()", 10000);

to

setTimeout(ReloadPage, 10000);

Report Inappropriate Content · ‎2013-01-28

Hi,

The setTimeout function is now getting called but it is refreshing the page ignoring the "timeout" value of 10000. The refresh rate is approximately 2-3 seconds and page is getting refreshed indefinitely (not once). Any ideas why it is working in this manner and the possible workaround ?

Thanks,

Samir.

alex_nerush · ‎2013-02-02

Because when you call ReloadPage your extension's javascript code called each time the page is getting refreshed.

Report Inappropriate Content · ‎2014-03-31

Hi Samir,

I had the same error you had but with the Hello World extension : "Unable to get value of the property 'prototype': object is null or undefined"

I managed to get rid of it by naming the folder containing the js and xml the same way it is in Definition.xml under the "Path" attribute.

Maybe it's a little bit too late for you (the post is one year old) but since this is the only link the search engines return when you type the error associated with "QlikView" I hope this will help beginners to build their first extensions.

Report Inappropriate Content · ‎2014-06-17

I was getting the same error while using D3 library. I was able to fix that by adding these 2 lines at the top of Properties.qvpp file

<!DOCTYPE html>