Common programming mistakes in .Net when handling exceptions? [closed]

Answer 1

To log Exception.Message instead of Exception.ToString()

Many times, I see code logging only the exception message while it should log the return of ToString method. ToString provides much more information about the exception than the Message. It includes information like inner exception and stack trace besides the message.

Answer 2

Wrong

try
{
   // Do something stupid
}
catch
{
   // ignore the resulting error because I'm lazy, and later spend
   // a week trying to figure out why my app is crashing all over
   // the place.
}

Better

try
{
    /// do something silly.
}
catch (InvalidOperationException ex)
{
    /// respond, or log it.
}
catch (Exception e)
{
    /// log it.
}