We use cookies to give you the best experience on our website. If you continue to browse, then you agree to our privacy policy and cookie policy.
Unfortunately, activation email could not send to your email. Please try again.

Exception thrown

Thread ID:





125745 Sep 8,2016 08:28 AM Sep 13,2016 12:40 PM Xamarin.Forms 2
Tags: SfBarcode
Asked On September 8, 2016 08:28 AM

Getting the following exception after leaving a page that has a barcode displayed on it.

Terminating app due to uncaught exception 'System.AggregateException', reason: 'System.AggregateException: A Task's exception(s) were not observed either by Waiting on the Task or accessing its Exception property. As a result, the unobserved exception was rethrown by the finalizer thread. ---> System.NullReferenceException: Object reference not set to an instance of an object at Syncfusion.SfBarcode.XForms.iOS.SfBarcodeMapping

Any ideas as what this could be.

Subburaj Pandian Veluchamy [Syncfusion]
Replied On September 9, 2016 02:25 AM

Hi Bob,

Thank you for your interest in Syncfusion products.

We have checked and we are unable to reproduce the mentioned issue “Throws exception in Barcode Xamarin Forms” from our side. We have prepared a simple barcode sample, please find the sample link below.

Sample Link: BarcodeSample

Could you please modify the provided sample with more details along with its issue reproducing procedure? It will be helpful for us to analyze your requirement and provide you a solution.

Subburaj Pandian V.

Replied On September 13, 2016 12:40 PM

Ok thanks for trying.
Given that we are just in trial mode at this point, I don't have the time to try and recreate this because it requires basically our entire app to demonstrate.

So I will just use the ZXING library to render the barcode.

You can consider this closed.


This post will be permanently deleted. Are you sure you want to continue?

Sorry, An error occured while processing your request. Please try again later.

You are using an outdated version of Internet Explorer that may not display all features of this and other websites. Upgrade to Internet Explorer 8 or newer for a better experience.