Is it possible for multiple catch inside try block ? if so how ? and how to pass the particular exception to caller?

Tips for exception handling:


1. Don't log the exception in each catch block in the method. I would recommend to log the exceptions at the manager level classes only to avoid flooding of log files.

2. General exception catch should be last catch block to avoid wrapping of known exceptions. (Note that, all exceptions are inherited from "Exception" class)

3. Propagate exceptions to up/top level for logging and handling.

Example:

try
{
    // Add your logic here.
}
catch (IOException ex)
{
    Trace.TraceError("Message={0}\r\nStack={1}", ex.Message, ex.StackTrace);
    throw;
}
catch (Exception ex)
{
    Trace.TraceError("Message={0}\r\nStack={1}", ex.Message, ex.StackTrace);
    throw;
}
finally
{
    // Release resources here.
}

To propogate exceptions, have a look here.

As written in the previous answer you can write multiple catch blocks after try block with different parameters. Generally in bigger projects. We write custom exceptions for every class/database table.


using throw we can throw the caught exception to the called block.

try
{
//logic
}

catch(Exception ex)
{
throw ;//This exception is thrown to the called block.
}

Hi all ,

Thanks for answers...

Suppose an exception occurs ,and i want to display a user defined message ,rather than that that exception message ? how do i do that ?

Next does finally {} code runs ,even any catch exception occurs ???


Thanks in advance

Naveen...