Err object:
Returns or sets a
descriptive string associated with an error.
Syntax:
object.Description [= stringexpression]
object-Always
the Err object.
Description-consists
of a short description of the error.
stringexpression-A
string expression containing a description of the error.
Properties of Err
object:
Description-Syntax:
object. Description [ =string]
This property returns or sets a string containing a brief textual
description of an error.
HelpContext-Syntax:
object.HelpContext [ =contextID]
This property is used to set or return a context ID for a Help
topic specified with the HelpFile property.
HelpFile-Syntax:
object. HelpFile [ = contextID]
This property is used to get or define the path to a Help file.
Number-Syntax:
object.Number [ =errnumber]
This property is used to retrieve or set the value that relates to
a specific runtime error.
Source-Syntax:
object. Source [ =string]
This property lets us determine the object or application that
caused an error, and returns a string that contains its Class name or
programmatic ID.
Methods of Err
object:
Clear-Syntax:
object.Clear
This method is used to clear teh settings of the Error object.
Raise-Syntax:
object.Raise(number[, source, description, helpfile, helpcontext])
This method is used to generate a VBScript runtime error.
Example:
<html>
<body>
<script
language=”vbscript”>
dim
numerr, abouterr
On Error Resume Next
Err.Raise 6
numerr
= Err.number
abouterr = Err.description
If numerr <> 0
Then
Response.Write "An Error has occured! Error number "
numerr " of the type '" abouterr "'."
End If
</script></body></html>Output:"An
Error has occured! Error number 6 of the type 'Overflow'."
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