standards-c-sharp

Be specific in what you catch

• When catching an exception, be as specific as possible to the type of exception you are handling. Avoid catching System.Exception if you only plan to handle a System.IO.FileNotFoundException.

Don’t

try
{
    OpenFile("myfile.txt");
}
catch (System.Exception)
{
    // some generic handling code
}

Do

try
{
    OpenFile("myfile.txt);
}
catch (System.IO.DriveNotFoundException)
{
    // inform the user they specified an invalid drive
}
catch (System.IO.FileNotFoundException)
{
    // create the file and retry
}
// etc.

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