ClickEvent : Cannot read Propery 'value' of null

[AndersonSOS]

Hi, I'm getting the following error (in browser console) "Cannot read Propery 'value' of null".

what happens is this, i try from a uniLabel, i put a simple "Showmessage('1'); " just for testing purposes.

by the attached video to understand the problem. it happens that it works randomly sometimes and simply stops working the event and starts displaying the message in the browser console (but in debug nothing appears in delphi). I checked if it could have an influence from somewhere else, but we isolated the form and the bug persisted. any idea how to solve? in this case we need the click to display the information in a panel on the side, that's all, call a simple function.

 

[Hayri ASLAN]

2 hours ago, AndersonSOS said:

Hi, I'm getting the following error (in browser console) "Cannot read Propery 'value' of null".

what happens is this, i try from a uniLabel, i put a simple "Showmessage('1'); " just for testing purposes.

by the attached video to understand the problem. it happens that it works randomly sometimes and simply stops working the event and starts displaying the message in the browser console (but in debug nothing appears in delphi). I checked if it could have an influence from somewhere else, but we isolated the form and the bug persisted. any idea how to solve? in this case we need the click to display the information in a panel on the side, that's all, call a simple function.

 

Hello

Can you create a test case? 

[AndersonSOS]

34 minutes ago, Hayri ASLAN said:

Hello

Can you create a test case? 

I'll try again, copy the form to another project, test and so I can attach it here

[AndersonSOS]

On 9/13/2021 at 11:55 AM, Hayri ASLAN said:

Hello

Can you create a test case? 

I copied the form to a new project, but in the new, the problem doesn't appear (work fine).

any suggestions for finding the error?