exception handling try catch block

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Hello,

We use try catch finally block to handle exception.

try
{ }
catch
{ }
finally
{ }

is it always necessary to execute finally block.... if not then how please explain with short example

Thanks & Regards
Srishti Gupta

Posted 19-Jun-14 19:08pm

srishti_

Updated 28-May-18 4:40am

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Raul Iloc · Answer 1 · 2014-06-19T19:24:00

1.The finally block should be used for executing code that is mandatory to be executed even there is no exception thrown, like disposing the used resources (disposable resources used in try block), in other cases the finally block is not mandatory.

2.You could see more details (including example source code) in my next article: MVC Basic Site: Step 2 - Exceptions Management[^]

Thanks7872 · Answer 2 · 2014-06-19T19:49:00

Solution 3

Try : Your code which you used to perform operations.

Catch : To handle exceptions(in very simple words 'Errors') that may occur while performing operations inside Try block.

Finally : Its guaranteed to be executed regardless of result of Try or Catch.

Finally is not mandatory block,but its useful in cases e.g. close database connections etc.

Regards..

Posted 19-Jun-14 19:49pm

Thanks7872

Comments

srishti_ 20-Jun-14 2:09am

i know this but i want to know how can we prevent to execute finally block this is my question

Member 14207397 2-Apr-19 2:16am

System.Exit(0);

Dinesh.V.Kumar · Answer 3 · 2014-06-19T19:28:00

Solution 2

Hi Srishti Gupta, Please check this article: Using Try... Catch..., Finally![^]

Gives you a good insight of exception handling..

It is not mandatory to have a finally block always. But it is advisable. You can dispose all the objects which you don't need. Also it can be used when you need to write some code that needs to be executed irrespective of an exception occurs or not.

Hope it helps.

Regards
Dinesh Kumar.V.

Posted 19-Jun-14 19:28pm

Dinesh.V.Kumar

Updated 19-Jun-14 19:40pm

v2

Comments

srishti_ 20-Jun-14 1:49am

how can we prevent to execute finally block

Member 14207397 2-Apr-19 2:42am

If you are using a Console Application -

Environment.Exit(0);
if you are using a Windows Forms based application

Application.Exit();