C# – try/catch + using, right syntax

ctry-catchusing-statement

Which one:

using (var myObject = new MyClass())
{
   try
   {
      // something here...
   }
   catch(Exception ex)
   {
      // Handle exception
   }
}

try
{
   using (var myObject = new MyClass())
   {
      // something here...
   }
}
catch(Exception ex)
{
   // Handle exception
}

Best Answer

I prefer the second one. May as well trap errors relating to the creation of the object as well.

Related Solutions

C# – Catch multiple exceptions at once

Catch System.Exception and switch on the types

catch (Exception ex)            
{                
    if (ex is FormatException || ex is OverflowException)
    {
        WebId = Guid.Empty;
        return;
    }
    
    throw;
}

C# – Why catch and rethrow an exception in C#

First; the way that the code in the article does it is evil. throw ex will reset the call stack in the exception to the point where this throw statement is; losing the information about where the exception actually was created.

Second, if you just catch and re-throw like that, I see no added value, the code example above would be just as good (or, given the throw ex bit, even better) without the try-catch.

However, there are cases where you might want to catch and rethrow an exception. Logging could be one of them:

try 
{
    // code that may throw exceptions    
}
catch(Exception ex) 
{
    // add error logging here
    throw;
}

Best Answer

Related Solutions

C# – Catch multiple exceptions at once

C# – Why catch and rethrow an exception in C#

Related Topic