[RESOLVED] Code for ERROR HANDLING !!!

How can I write the code if I don't know or don't want to write error number?

Private Sub cmdfirst_Click()
On Error GoTo FIRST
rs.MoveFirst
show_rec
FIRST:
If Err.Number = 3021 Then 'How can I modify the code here?
End If
End Sub

Not sure if I understand the question.
What has to be done when the error is raised?

Why not write the errors to a .txt file?

VB Code:

ErrorLog:
Open App.Path & "\errorlog.txt" For Append As #1
Write #1, Format(Now, "C"), Err.Number, Err.Description, " Your Descriptiion"   
Close #1

Quote:

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Originally Posted by vbcode1980

Not sure if I understand the question.
What has to be done when the error is raised?

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On Error GoTo FIRST (This is ok)
If Err.Number = 3021 Then (In this sentence what should I write in the place of Err.Number = 3021 if I dont want to write the error number like this "3021".

Quote:

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Originally Posted by seema_s

On Error GoTo FIRST (This is ok)
If Err.Number = 3021 Then (In this sentence what should I write in the place of Err.Number = 3021 if I dont want to write the error number like this "3021".

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could do this,

VB Code:

On Error GoTo FIRST
    rs.MoveFirst
    show_rec
 
Exit Sub
 
FIRST:
    MsgBox Err.Description & " " & Err.Number

Quote:

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Originally Posted by seema_s

How can I write the code if I don't know or don't want to write error number?

Private Sub cmdfirst_Click()
On Error GoTo FIRST
rs.MoveFirst
show_rec
FIRST:
If Err.Number = 3021 Then 'How can I modify the code here?
End If
End Sub

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What exactly do you want the error handler to do for you?

You have a couple of options. First, you don't have to use any If statment at all.

VB Code:

Private Sub Command1_Click()
On Error Goto ErrTrap
'code for click event
Exit Sub
ErrTrap:
'use eusty's example
Open "c:\ErrorLog.txt" For Append As #1
Print #1, Format(Now, "mm/dd/yyyy") & " " & Err.Number & " " & Err.Description
Close #1
End Sub

This will trap and log the error. Note, no code after the error will be executed.

If you want to trap for a specific error, as well as all other errors, then you can use the If statement

VB Code:

Private Sub Command1_Click()
On Error Goto ErrTrap
'code for click event
Exit Sub
ErrTrap:
If Err.Number = 3021 Then
   'do something for this specific error
Else
   'do something else regardless of what the error is
End If
End Sub

Again, no code will be executed after the line the error occurred on. If you want to trap and log the error, and continue code execution, then in your error trap, log the error, then add a Resume Next, which will continue executing the code after the line on which the error has occured.

Quote:

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Originally Posted by Hack

You have a couple of options. First, you don't have to use any If statment at all.

VB Code:

Private Sub Command1_Click()
On Error Goto ErrTrap
'code for click event
Exit Sub
ErrTrap:
'use eusty's example
Open "c:\ErrorLog.txt" For Append As #1
Print #1, Format(Now, "mm/dd/yyyy") & " " & Err.Number & " " & Err.Description
Close #1
End Sub

This will trap and log the error. Note, no code after the error will be executed.

If you want to trap for a specific error, as well as all other errors, then you can use the If statement

VB Code:

Private Sub Command1_Click()
On Error Goto ErrTrap
'code for click event
Exit Sub
ErrTrap:
If Err.Number = 3021 Then
   'do something for this specific error
Else
   'do something else regardless of what the error is
End If
End Sub

Again, no code will be executed after the line the error occurred on. If you want to trap and log the error, and continue code execution, then in your error trap, log the error, then add a Resume Next, which will continue executing the code after the line on which the error has occured.

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Thanks a lot.