VB.NET Language in a Nutshell, Second Edition

Error Handling

Element	Description
Erl function	Indicates the line number at which an error occurred
Err.Clear method	Clears the Err object
Err.Description property	Provides a textual description of an error
Err.GetException method	Returns the Exception object associated with the current error
Err.HelpContext property	Returns or sets the help file ID for the current error
Err.HelpFile property	Returns or sets the name and path of the help file containing information about the current error
Err.LastDLLError property	Returns the error number from an error raised by a system API DLL
Err.Number property	Returns or sets the current error code
Err.Raise method	Generates a user-defined error
Err.Source property	Returns or sets the source of an error
ErrorToString function	Converts an error number to the corresponding error message
Exception class	Base class for all exceptions
IsError function	Determines whether an object is an exception type
On Error statement	Enables or disables an error handler
Resume statement	Transfers control from an error handler
Throw statement	Throws an exception
Try...Catch...Finally statement	Handles particular errors that may occur in a block of code through structured exception handling