C# Why was exception raised inside try-catch block?

Asked Nov 13 '20 at 10:05

Active Jan 27 '21 at 10:29

Viewed 51 times

I have this code in ASP.NET form:

bool cont = true;
int i = 0;

while (cont)
{
    try
    {
        JToken token = tempJSON["temperature"]["tool" + i];
        temperature.Add(JsonConvert.DeserializeObject<Structures.Temperature>(token.ToString()));
        i++;
    }
    catch(NullReferenceException ex) { pokracovat = false; }
}
 
return new TemperatureAndState(temperature, state);

And after running code, program rais NullReferenceException inside try catch. How it is possible. I thought if exception is raised in try the program will call catch and program continue.

Error:

error image

Can you help me please?

edited Jan 27 '21 at 10:29

ChrisF

131,190
30
250
321

asked Nov 13 '20 at 10:05

Vítek Vohralík

1

This might help https://stackoverflow.com/questions/1630437/try-catch-block-not-catching-exception – IndieGameDev Nov 13 '20 at 10:08
This might also help: https://stackoverflow.com/questions/16921984/stop-visual-studio-from-breaking-on-exception-in-tasks – Marcos Arruda Nov 13 '20 at 10:20
If you are debugging, then Visual Studio will always stop on an error so you (the developer) will know it's there. However, when not debugging, this won't happen. – Casey Crookston Nov 13 '20 at 16:09
Thank you to everyone – Vítek Vohralík Nov 13 '20 at 16:41

C# Why was exception raised inside try-catch block?

0 Answers0