C # Custom Exceptions

2. Inherits from the System.ApplicationException class and uses exception as the end of the custom exception class name
3. Three constructors: A parameterless constructor, a constructor for a string argument, a string argument, an inner exception as a parameter constructor

   1   Public classmyexception:applicationexception2  {3     Private stringerror;4     PrivateException innerexception;5     //parameterless Constructors6      Publicmyexception ()7     {8         9     }Ten     //a constructor with a string argument that passes the custom exception information when the programmer uses the exception class to get exception information rather than MyException One       PublicMyException (stringMSG):Base(msg) A     { -   　      This. error=msg; -     } the     //constructor with a string argument and an inner exception information parameter -      PublicMyException (stringMsg,exception innerexception):Base(msg) -     { -          This. innerexception=innerexception; +          This. error=msg; -     } +      Public stringGetError () A     { at   　     returnerror; -     } -}

   Custom Exceptions
5. Throw a custom exception

throw new MyException ("message");

Capture Custom exception: catch (MyException) {}

C # Custom Exceptions