Value cannot be null exception with Radzen Tab Components

Radzen.Blazor Components
1

Tabs work fine until I try to fill out the data within the tab. Once the data is filled out, & I try to switch tabs I get this exception:

System.AggregateException: Exceptions were encountered while disposing components. (Value cannot be null. (Parameter 'obj')) (Value cannot be null. (Parameter 'obj'))

I can switch tabs when there is no data within the fields, but the second I add any information it throws this exception

2

Works normally on our demo:
https://blazor.radzen.com/tabs

3

Sorry, think I worded it a bit weird. I have user inputs within the tabs, and when the user inputs aren't filled out at all, switching between the tabs works fine. However if the user tries to fill out the form on one of the tabs, and then switch to the next tab - it throws that exception

4

We recently solved a similar issue. Make sure you are using the latest version.

1 Like
5

Hi, I have the same problem - when I switch the tabs I get "Value cannot be null. (Parameter 'source')" but in debug I can see that there is nothing which is null. - version 2.8.10