I'm trying to capture the worksheet change event when a table heading is cleared by the user.
Private Sub Worksheet_Change(ByVal Target As Range)
application.EnableEvents = False
If Not Intersect(Target, Me.ListObjects("Table1").HeaderRowRange) Is Nothing Then
msgbox "Hello"
end if
application.EnableEvents = True
End Sub
If the user presses "delete" to clear a non-default heading name on the table, Excel automatically replaces the blank heading with the default heading name (eg. "Column1"). This seems to cause the worksheet change event to run multiple times. I'd like to figure out a way to have this event run only once when the user clears the a heading.
Any help is greatly appreciated.
The easiest workaround for this is to add an assertion at the beginning of your event, that checks that the target cell does not already contain a default column name.
I would do this with a simple if and like statement, which catches when a heading begins with "Column" and exits the event using Exit Sub. You could do all of this in one simple line of code. Something like...
Private Sub Worksheet_Change(ByVal Target As Range)
If Target.value Like "Column*" Then Exit Sub
application.EnableEvents = False
If Not Intersect(Target, Me.ListObjects("Table1").HeaderRowRange) Is Nothing Then
msgbox "Hello"
end if
application.EnableEvents = True
End Sub
This code is admittedly untested but it should provide you with a good base to start from.
Related
I am having a problem with Excel crashing, when I run VBA code on an excel sheet.
I'm trying to add the following formula on worksheet change:
Private Sub Worksheet_Change(ByVal Target As Range)
Worksheets("testpage").Range("A1:A8").Formula = "=B1+C1"
End Sub
When this code is run i get a message saying "excel has encountered a problem and needs to close" and excel closes.
If I run the code in the Worksheet_Activate() procedure, it works fine and doesn't crash
Private Sub Worksheet_Activate()
Worksheets("testpage").Range("A1:A8").Formula = "=B1+C1"
End Sub
But I really need it to work in the Worksheet_Change() procedure.
Has anyone experienced similar crashes when using the Worksheet_Change() event and can anyone point in the right direction to fix this issue ?
I recommend this when using Worksheet_Change
You do not need the sheet name. In a Sheet Code Module, an unqualified Range reference refers to that sheet. That said, it is clearer to use the Me qualifier. If you are trying to use another sheet, then qualify the range reference with that sheet.
Whenever you are working with Worksheet_Change event, always switch Off events if you are writing data to any cell. This is required so that the code doesn't retrigger the Change event, and go into a possible endless loop
Whenever you are switching off events, use error handling to turn it back on, else if you get an error, the code will not run the next time.
Try this
Private Sub Worksheet_Change(ByVal Target As Range)
On Error GoTo Whoa
Application.EnableEvents = False
Me.Range("A1:A8").Formula = "=B1+C1"
Letscontinue:
Application.EnableEvents = True
Exit Sub
Whoa:
MsgBox Err.Description
Resume Letscontinue
End Sub
Few other things that you may want to know when working with this event.
If you want to ensure that the code doesn't run when more than one cell is changed then add a small check
Private Sub Worksheet_Change(ByVal Target As Range)
'~~> For Excel 2003
If Target.Cells.Count > 1 Then Exit Sub
'
'~~> Rest of code
'
End Sub
The CountLarge was introduced in Excel 2007 onward because Target.Cells.Count returns an Long value which can error out in Excel 2007 becuase of increased total cells count.
Private Sub Worksheet_Change(ByVal Target As Range)
'~~> For Excel 2007
If Target.Cells.CountLarge > 1 Then Exit Sub
'
'~~> Rest of code
'
End Sub
To work with all the cells that were changed use this code
Private Sub Worksheet_Change(ByVal Target As Range)
Dim aCell As Range
For Each aCell In Target.Cells
With aCell
'~~> Do Something
End With
Next
End Sub
To detect change in a particular cell, use Intersect. For example, if a change happens in Cell A1, then the below code will fire
Private Sub Worksheet_Change(ByVal Target As Range)
If Not Intersect(Target, Me.Range("A1")) Is Nothing Then
MsgBox "Cell A1 was changed"
'~~> Your code here
End If
End Sub
To detect change in a particular set of range, use Intersect again. For example, if a change happens in range A1:A10, then the below code will fire
Private Sub Worksheet_Change(ByVal Target As Range)
If Not Intersect(Target, Me.Range("A1:A10")) Is Nothing Then
MsgBox "one or more Cells in A1:A10 range was changed"
'~~> Your code here
End If
End Sub
Note: If you were getting an error earlier and you made the above changes and If your code is still not working then it is possible that the events have not been reset. In the Immediate Window, type Application.EnableEvents = True and press the ENTER key. This will reset it to True. If you do not see the Immediate Window, the press the shortcut key Ctl+G to launch the Immediate Window.
Excel was crashing, not the VBA function.
The events were not disabled and the call stack was filled by an infinite loop of OnChange events.
A little advice that helps finding this type of errors: set a breakpoint on the first line of the event, then execute it step by step pressing F8.
Also this solution is good:
Option Explicit
Private Busy As Boolean
Private Sub Worksheet_Change(ByVal Target As Range)
If Not Busy Then
Busy = True
Range("A1:A8").Formula = "=B1+C1"
Busy = False
End If
End Sub
How can I automatically execute an Excel macro each time a value in a particular cell changes?
Right now, my working code is:
Private Sub Worksheet_Change(ByVal Target As Range)
If Not Intersect(Target, Range("H5")) Is Nothing Then Macro
End Sub
where "H5" is the particular cell being monitored and Macro is the name of the macro.
Is there a better way?
Your code looks pretty good.
Be careful, however, for your call to Range("H5") is a shortcut command to Application.Range("H5"), which is equivalent to Application.ActiveSheet.Range("H5"). This could be fine, if the only changes are user-changes -- which is the most typical -- but it is possible for the worksheet's cell values to change when it is not the active sheet via programmatic changes, e.g. VBA.
With this in mind, I would utilize Target.Worksheet.Range("H5"):
Private Sub Worksheet_Change(ByVal Target As Range)
If Not Intersect(Target, Target.Worksheet.Range("H5")) Is Nothing Then Macro
End Sub
Or you can use Me.Range("H5"), if the event handler is on the code page for the worksheet in question (it usually is):
Private Sub Worksheet_Change(ByVal Target As Range)
If Not Intersect(Target, Me.Range("H5")) Is Nothing Then Macro
End Sub
I spent a lot of time researching this and learning how it all works, after really messing up the event triggers. Since there was so much scattered info I decided to share what I have found to work all in one place, step by step as follows:
1) Open VBA Editor, under VBA Project (YourWorkBookName.xlsm) open Microsoft Excel Object and select the Sheet to which the change event will pertain.
2) The default code view is "General." From the drop-down list at the top middle, select "Worksheet."
3) Private Sub Worksheet_SelectionChange is already there as it should be, leave it alone. Copy/Paste Mike Rosenblum's code from above and change the .Range reference to the cell for which you are watching for a change (B3, in my case). Do not place your Macro yet, however (I removed the word "Macro" after "Then"):
Private Sub Worksheet_Change(ByVal Target As Range)
If Not Intersect(Target, Me.Range("H5")) Is Nothing Then
End Sub
or from the drop-down list at the top left, select "Change" and in the space between Private Sub and End Sub, paste If Not Intersect(Target, Me.Range("H5")) Is Nothing Then
4) On the line after "Then" turn off events so that when you call your macro, it does not trigger events and try to run this Worksheet_Change again in a never ending cycle that crashes Excel and/or otherwise messes everything up:
Application.EnableEvents = False
5) Call your macro
Call YourMacroName
6) Turn events back on so the next change (and any/all other events) trigger:
Application.EnableEvents = True
7) End the If block and the Sub:
End If
End Sub
The entire code:
Private Sub Worksheet_Change(ByVal Target As Range)
If Not Intersect(Target, Me.Range("B3")) Is Nothing Then
Application.EnableEvents = False
Call UpdateAndViewOnly
Application.EnableEvents = True
End If
End Sub
This takes turning events on/off out of the Modules which creates problems and simply lets the change trigger, turns off events, runs your macro and turns events back on.
Handle the Worksheet_Change event or the Workbook_SheetChange event.
The event handlers take an argument "Target As Range", so you can check if the range that's changing includes the cell you're interested in.
I prefer this way, not using a cell but a range
Dim cell_to_test As Range, cells_changed As Range
Set cells_changed = Target(1, 1)
Set cell_to_test = Range( RANGE_OF_CELLS_TO_DETECT )
If Not Intersect(cells_changed, cell_to_test) Is Nothing Then
Macro
End If
I have a cell which is linked to online stock database and updated frequently. I want to trigger a macro whenever the cell value is updated.
I believe this is similar to cell value change by a program or any external data update but above examples somehow do not work for me. I think the problem is because excel internal events are not triggered, but thats my guess.
I did the following,
Private Sub Worksheet_Change(ByVal Target As Range)
If Not Intersect(Target, Target.Worksheets("Symbols").Range("$C$3")) Is Nothing Then
'Run Macro
End Sub
I am having a problem with Excel crashing, when I run VBA code on an excel sheet.
I'm trying to add the following formula on worksheet change:
Private Sub Worksheet_Change(ByVal Target As Range)
Worksheets("testpage").Range("A1:A8").Formula = "=B1+C1"
End Sub
When this code is run i get a message saying "excel has encountered a problem and needs to close" and excel closes.
If I run the code in the Worksheet_Activate() procedure, it works fine and doesn't crash
Private Sub Worksheet_Activate()
Worksheets("testpage").Range("A1:A8").Formula = "=B1+C1"
End Sub
But I really need it to work in the Worksheet_Change() procedure.
Has anyone experienced similar crashes when using the Worksheet_Change() event and can anyone point in the right direction to fix this issue ?
I recommend this when using Worksheet_Change
You do not need the sheet name. In a Sheet Code Module, an unqualified Range reference refers to that sheet. That said, it is clearer to use the Me qualifier. If you are trying to use another sheet, then qualify the range reference with that sheet.
Whenever you are working with Worksheet_Change event, always switch Off events if you are writing data to any cell. This is required so that the code doesn't retrigger the Change event, and go into a possible endless loop
Whenever you are switching off events, use error handling to turn it back on, else if you get an error, the code will not run the next time.
Try this
Private Sub Worksheet_Change(ByVal Target As Range)
On Error GoTo Whoa
Application.EnableEvents = False
Me.Range("A1:A8").Formula = "=B1+C1"
Letscontinue:
Application.EnableEvents = True
Exit Sub
Whoa:
MsgBox Err.Description
Resume Letscontinue
End Sub
Few other things that you may want to know when working with this event.
If you want to ensure that the code doesn't run when more than one cell is changed then add a small check
Private Sub Worksheet_Change(ByVal Target As Range)
'~~> For Excel 2003
If Target.Cells.Count > 1 Then Exit Sub
'
'~~> Rest of code
'
End Sub
The CountLarge was introduced in Excel 2007 onward because Target.Cells.Count returns an Long value which can error out in Excel 2007 becuase of increased total cells count.
Private Sub Worksheet_Change(ByVal Target As Range)
'~~> For Excel 2007
If Target.Cells.CountLarge > 1 Then Exit Sub
'
'~~> Rest of code
'
End Sub
To work with all the cells that were changed use this code
Private Sub Worksheet_Change(ByVal Target As Range)
Dim aCell As Range
For Each aCell In Target.Cells
With aCell
'~~> Do Something
End With
Next
End Sub
To detect change in a particular cell, use Intersect. For example, if a change happens in Cell A1, then the below code will fire
Private Sub Worksheet_Change(ByVal Target As Range)
If Not Intersect(Target, Me.Range("A1")) Is Nothing Then
MsgBox "Cell A1 was changed"
'~~> Your code here
End If
End Sub
To detect change in a particular set of range, use Intersect again. For example, if a change happens in range A1:A10, then the below code will fire
Private Sub Worksheet_Change(ByVal Target As Range)
If Not Intersect(Target, Me.Range("A1:A10")) Is Nothing Then
MsgBox "one or more Cells in A1:A10 range was changed"
'~~> Your code here
End If
End Sub
Note: If you were getting an error earlier and you made the above changes and If your code is still not working then it is possible that the events have not been reset. In the Immediate Window, type Application.EnableEvents = True and press the ENTER key. This will reset it to True. If you do not see the Immediate Window, the press the shortcut key Ctl+G to launch the Immediate Window.
Excel was crashing, not the VBA function.
The events were not disabled and the call stack was filled by an infinite loop of OnChange events.
A little advice that helps finding this type of errors: set a breakpoint on the first line of the event, then execute it step by step pressing F8.
Also this solution is good:
Option Explicit
Private Busy As Boolean
Private Sub Worksheet_Change(ByVal Target As Range)
If Not Busy Then
Busy = True
Range("A1:A8").Formula = "=B1+C1"
Busy = False
End If
End Sub
I am having a problem with Excel crashing, when I run VBA code on an excel sheet.
I'm trying to add the following formula on worksheet change:
Private Sub Worksheet_Change(ByVal Target As Range)
Worksheets("testpage").Range("A1:A8").Formula = "=B1+C1"
End Sub
When this code is run i get a message saying "excel has encountered a problem and needs to close" and excel closes.
If I run the code in the Worksheet_Activate() procedure, it works fine and doesn't crash
Private Sub Worksheet_Activate()
Worksheets("testpage").Range("A1:A8").Formula = "=B1+C1"
End Sub
But I really need it to work in the Worksheet_Change() procedure.
Has anyone experienced similar crashes when using the Worksheet_Change() event and can anyone point in the right direction to fix this issue ?
I recommend this when using Worksheet_Change
You do not need the sheet name. In a Sheet Code Module, an unqualified Range reference refers to that sheet. That said, it is clearer to use the Me qualifier. If you are trying to use another sheet, then qualify the range reference with that sheet.
Whenever you are working with Worksheet_Change event, always switch Off events if you are writing data to any cell. This is required so that the code doesn't retrigger the Change event, and go into a possible endless loop
Whenever you are switching off events, use error handling to turn it back on, else if you get an error, the code will not run the next time.
Try this
Private Sub Worksheet_Change(ByVal Target As Range)
On Error GoTo Whoa
Application.EnableEvents = False
Me.Range("A1:A8").Formula = "=B1+C1"
Letscontinue:
Application.EnableEvents = True
Exit Sub
Whoa:
MsgBox Err.Description
Resume Letscontinue
End Sub
Few other things that you may want to know when working with this event.
If you want to ensure that the code doesn't run when more than one cell is changed then add a small check
Private Sub Worksheet_Change(ByVal Target As Range)
'~~> For Excel 2003
If Target.Cells.Count > 1 Then Exit Sub
'
'~~> Rest of code
'
End Sub
The CountLarge was introduced in Excel 2007 onward because Target.Cells.Count returns an Long value which can error out in Excel 2007 becuase of increased total cells count.
Private Sub Worksheet_Change(ByVal Target As Range)
'~~> For Excel 2007
If Target.Cells.CountLarge > 1 Then Exit Sub
'
'~~> Rest of code
'
End Sub
To work with all the cells that were changed use this code
Private Sub Worksheet_Change(ByVal Target As Range)
Dim aCell As Range
For Each aCell In Target.Cells
With aCell
'~~> Do Something
End With
Next
End Sub
To detect change in a particular cell, use Intersect. For example, if a change happens in Cell A1, then the below code will fire
Private Sub Worksheet_Change(ByVal Target As Range)
If Not Intersect(Target, Me.Range("A1")) Is Nothing Then
MsgBox "Cell A1 was changed"
'~~> Your code here
End If
End Sub
To detect change in a particular set of range, use Intersect again. For example, if a change happens in range A1:A10, then the below code will fire
Private Sub Worksheet_Change(ByVal Target As Range)
If Not Intersect(Target, Me.Range("A1:A10")) Is Nothing Then
MsgBox "one or more Cells in A1:A10 range was changed"
'~~> Your code here
End If
End Sub
Note: If you were getting an error earlier and you made the above changes and If your code is still not working then it is possible that the events have not been reset. In the Immediate Window, type Application.EnableEvents = True and press the ENTER key. This will reset it to True. If you do not see the Immediate Window, the press the shortcut key Ctl+G to launch the Immediate Window.
Excel was crashing, not the VBA function.
The events were not disabled and the call stack was filled by an infinite loop of OnChange events.
A little advice that helps finding this type of errors: set a breakpoint on the first line of the event, then execute it step by step pressing F8.
Also this solution is good:
Option Explicit
Private Busy As Boolean
Private Sub Worksheet_Change(ByVal Target As Range)
If Not Busy Then
Busy = True
Range("A1:A8").Formula = "=B1+C1"
Busy = False
End If
End Sub
Is there a simple way to get Excel to automatically execute a macro whenever a cell is changed?
The cell in question would be in Worksheet("BigBoard").Range("D2")
What I thought would be a simple Google inquiry is proving to be more complicated - every sample involved intersects (whatever those are) or color formatting or any other number of things that appear to be irrelevant.
Yes, this is possible by using worksheet events:
In the Visual Basic Editor open the worksheet you're interested in (i.e. "BigBoard") by double clicking on the name of the worksheet in the tree at the top left. Place the following code in the module:
Private Sub Worksheet_Change(ByVal Target As Range)
If Intersect(Target, Me.Range("D2")) Is Nothing Then Exit Sub
Application.EnableEvents = False 'to prevent endless loop
On Error Goto Finalize 'to re-enable the events
MsgBox "You changed THE CELL!"
Finalize:
Application.EnableEvents = True
End Sub
Another option is
Private Sub Worksheet_Change(ByVal Target As Range)
IF Target.Address = "$D$2" Then
MsgBox("Cell D2 Has Changed.")
End If
End Sub
I believe this uses fewer resources than Intersect, which will be helpful if your worksheet changes a lot.
In an attempt to find a way to make the target cell for the intersect method a name table array, I stumbled across a simple way to run something when ANY cell or set of cells on a particular sheet changes. This code is placed in the worksheet module as well:
Private Sub Worksheet_Change(ByVal Target As Range)
If Target.Cells.Count > 0 Then
'mycode here
end if
end sub
In an attempt to spot a change somewhere in a particular column (here in "W", i.e. "23"), I modified Peter Alberts' answer to:
Private Sub Worksheet_Change(ByVal Target As Range)
If Not Target.Column = 23 Then Exit Sub
Application.EnableEvents = False 'to prevent endless loop
On Error GoTo Finalize 'to re-enable the events
MsgBox "You changed a cell in column W, row " & Target.Row
MsgBox "You changed it to: " & Target.Value
Finalize:
Application.EnableEvents = True
End Sub
I was creating a form in which the user enters an email address used by another macro to email a specific cell group to the address entered. I patched together this simple code from several sites and my limited knowledge of VBA. This simply watches for one cell (In my case K22) to be updated and then kills any hyperlink in that cell.
Private Sub Worksheet_Change(ByVal Target As Range)
Dim KeyCells As Range
' The variable KeyCells contains the cells that will
' cause an alert when they are changed.
Set KeyCells = Range("K22")
If Not Application.Intersect(KeyCells, Range(Target.Address)) _
Is Nothing Then
Range("K22").Select
Selection.Hyperlinks.Delete
End If
End Sub