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Error Handling - on error goto Label?

Error Handling - on error goto Label?

Error Handling - on error goto Label?

(OP)
Within VBS, is it possible to provide my own error handling, such:

.
.
on error goto myerrorhandle
.
.
quit

myerrorhandle:
if Err.Number=3 then
  echo "Oh no, not good"
else
  echo "Not so bad, but not great."
end if
quit

RE: Error Handling - on error goto Label?

Hello MCubitt,

Vbs does not support On Error Goto Label directive. Instead, it is not difficult to implement the functionality. Something like this illustrate the idea.

set fso=createobject("scripting.filesystemobject")
on error resume next
set f=fso.opentextfile("nonexisting.txt")
errcode=err.number
err.clear
select case errcode
    case 53
                call errorhandle_53
        'case etc...
    case else
        msgbox err.number & vbcrlf & err.description
        'do something / call some routine
end select
'some other stuff
on error goto 0
'do some other stuff
set f=nothing
set fso=nothing

sub errorhandle_53    'file not found
    msgbox err.number & vbcrlf & err.description
        'do something useful
end sub

RE: Error Handling - on error goto Label?

On VBS you can only use this syntax:
On Error Resume Next
On Error GoTo 0

The Err object is available:
On Error Resume Next
Err.Raise 3
Msg="Error# " & CStr(Err.Number) & " " & Err.Description _
 & " from " & Err.Source
WScript.Echo Msg
Err.Clear

Hope This Help
PH.

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