Application-wide Error Handling

Feb 21, 2007

I am creating a rather large system that is as OOP as I am able to with VBA (Please let the next version of VBA use .NET!).

I have created an ErrorHandler object that deals with all logic/user errors and I have decided to include runtime errors in it's scope as well.

Now I have an object function to catch all errors as such:

Public Function CatchAll(E As ErrObject)

Select Case E.Number

Case xxx

...

Case Else
MsgBox E.Number & ": " & E.Description & vbCrLf & E.Source

End Select

End Function

Now I have added the following to every single procedure and function in my application, and have realised how ridiculous it is.

On Error Goto ErrorHandling

...

ErrorHandling:
ErrorHandler.Catchall Err

Is there a way to add a single global ErrorHandling statement somewhere in my code that will be called whenever an error is raised?

Perhaps in my main module that fires all code, can I put a small procedure that will handle the errors? Or as a function in my ErrorHandler class that I call on initialisation?

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So the issue I am having is that I have a worksheet with two long rows of value. If the user enters the incorrect value, the program gives a error case of 1004. If and when this error occurs I want the program to send a MessageBox to the user then end the program. The problem that I am running into is that whenever I write On Error Goto... It Goes to the label whenever any runtime error occurs. My belief is that there has to be a way to only check for a runtime error on a single line of code rather than the entire sub.

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What I would like to add is an error handler that would remove the directory (delete that cell) that caused the error and continue with the loop. I.e. resume importing data from the other directories.

CODE:
Dim wrkMyWorkBook As Workbook
Dim lngRow As Long: lngRow = 1
Dim lngColumn As Long: lngColumn = 2

Do Until Sheets("Sheet1").Range("A" & lngRow).Value = vbNullString
Set wrkMyWorkBook = Workbooks.Open(Filename:=Sheets("Sheet1").Range("A" & lngRow).Value & "" & "REPORT01.CSV")
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[Code] ......

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The part of the code where it stops is:

ActiveSheet.ExportAsFixedFormat Type:=xlTypePDF, Filename:= _
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Dim pt As PivotTable
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'the code is looping through the values in an array called NBArr

I have tried to handle this as follows:

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However, even this is not working (in case when the function finds no value).

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I'm looking for some direction with enhancing this code:

Code:
Case "L18"
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[Code]...

With this code, wshmain.range("Y18") is populated with the value associated with the vlookup. However, problems exist when the vlookup fails. If the vlookup fails, I don't want to try to populate wshmain.range, just simply .protect and abandon.

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I am working on a worksheet with quite a few advisors who will be using the sheet, because of this reason I am trying to cover my back with as much error handling with my VBA script as possible. Where I am struggling is the following line:

Code:
Set cb = Workbooks.Open("wilm-dchome"UserName"DesktopCurrent projectPipeline Grouped.xlsm")

I want to have an error handler that says if this file cannot be found use the following line of code instead:

Code:
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Consider this snippit of
'
' courts
'
Courts:
Dim lcrtcopy As Long
End_RowDest = 0
wshV.Activate
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On Error GoTo NoIncCol
Line using MATCH
On Error GoTo Exiting
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In another part of the code, I need to check for another column heading, which so far has turned up in two different forms. At the moment I'm doing this as follows:

With Sheets("Sheet1").Range("1:1")
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This feels a bit clunky, and I don't really like having what is essentially error-handling in the middle of my code. But the only other way I can think of to do it is to use a GoTo, and I believe that's not really considered good practice either.

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Mar 1, 2007

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Private Sub Workbook_Open()
Application.CommandBars("Worksheet Menu Bar").Controls("File").Controls("Save As...").Enabled = False
Application.CommandBars("Worksheet Menu Bar").Controls("File").Controls("Save").Enabled = False
End Sub

Sub SaveMe()
'
' Keyboard Shortcut: Ctrl+z
'
Dim BaseDir As String
Dim NewName As String
BaseDir = "p:dataprc" ...........

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The basic code works fine, but did not account for the user entering a Job# that was not in the system, so I added an If/Else to account for this...
The additional code took the If (Job# not found) route every time...
Following many hours of searching this site and variations of the error handling code, I still can not get it to work.

So I'm asking for your assistance to point out why the error handling (based on other successful code found here) is not working for me.

'Insert Link
Private Sub CommandButton3_Click()

If TextBox1.Value = "" Then
MsgBox "Please Insert a Job#"
Exit Sub
ElseIf TextBox2.Value = "" Then
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If I remove the 'On Error Resume Next', it stops on the find block, where on inspection FindR = Nothing.

So if FindR does = Nothing, how did it manage to select the cell?

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I was wanting to create an error-handling procedure that displayed a message box, and then closed any workbooks that I've opened during the course of the macro. Obviously the error could trigger at any point, so not all workbooks may have been opened at the time

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Code:
On Error GoTo ReportError
code
code
code
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With ThisWorkbook.Sheets("price").Range(ActiveCell.Address)
If .Value = "" Then
UserForm2.TextBox1.Value = "No Trade Selected"
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I have a excel document that is very heavy with Data Validation List Boxes. Below is just one example. Error handling is what I am trying to figure out.
Description:
I have 3 List Boxes.
One list box data is based on data selected in the previous list box.

1st List Box uses this formula: =Series
2nd List Box uses this formula: =INDIRECT($C$2)
3rd List Box uses this formula: =INDIRECT($C$3)

It all works! HOWEVER....
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I have written a VBA procedure which loops through excel files in an array: in turn it opens the file, refreshes the data, saves the file and closes. I would like to write an error handler which stores the file which errored (copied from the loop iteration) and the error description to an array. The error handler should then close the file and continue with the next iteration - e.g.

Code:
If ActiveWorkbook.ReadOnly Then
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Next i
*Although a generic if error may be better.

My idea is that all files which errored in some way will be stored in an array which I can automatically print/send to a user so they can manually figure out the problem. (This element falls outside the range of this query).

Below is a simple example of my efforts which only contains one file in the array to make things simpler: the error handler section won't work, it's just there to show my thinking

Code:
Sub Refresh_CRIS()
On Error GoTo Errorhandler
Dim routepath As String
routepath = "
chdfsSharedAreaPrivateTest"
ChDir routepath

[Code] ........

Errorhandler:
On Error Resume Next
Failed = Array(i)
If ActiveWorkbook.ReadOnly Then 'Just an example for testing
ActiveWorkbook.Close
Else
MsgBox "Pivots which failed to refresh:" & Failed '& ", ", 0, "Debug" 'Test with msgbox
End If
End Sub

Using Excel 2010

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As you can imagine, the worksheet does not like it when the worksheet name input by the user, is the same as one already existing and so throws up a 1004 error.

In order to resolve this error I have included an error handling code to request the user to input a differnet worksheet name, as the one previously inserted exists.

My problem: It all works fine until the user types in an existing worksheet name twice, so once initially and again when the error handler has prompted a second attempt. On the second incorrect input a 1004 error warning is displayed.

I would like the error handler to keep repeating until a worksheet name that doesn't exist is inserted by the user. Is this possible?

My code so far:

Sub NewTrancheSheet()
'
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Sheets("Tranche Sheet Template").Select

Sheets("Tranche Sheet Template").Copy Before:=Sheets(1)

Sheets("Tranche Sheet Template (2)").Select
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Private Sub ParseInjuryPage()
On Error Goto ErrorHandl
Dim strPage As String
Dim webIE As SHDocVw.InternetExplorer
Dim myURL As String
Dim tableBeg As Long
Dim tableEnd As Long
Dim RowBeg As Long
Dim rowEnd As Long
Dim cellBeg As Long
Dim cellEnd As Long
Dim strBeg As Long
Dim strEnd As Long
Dim myCell As Range
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DoEvents
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Dim lCount As Long
Dim wbResults As Workbook
Dim wbCodeBook As Workbook

Set wbCodeBook = ThisWorkbook

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.NewSearch
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VB:
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[Code].....

use code tags around code. Posting code without them makes your code hard to read and difficult to be copied for testing. Highlight your code and click the # at the top of your post window.

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