vba - Unable to Activate Macro when Active Cell Changes Through formula
问题描述
My aim is to trigger the advanced filter macro when cell B2 changes (a part of the filtering criteria). B2 is linked to another cell(in another worksheet) which dynamically gets data from external sources. The problem I am facing is that the macro does not activate automatically. Only when I manually change something in B2 is the macro activated. Otherwise the old criteria remains in place. A1 to G1 has the 7 categories and A2-G2 has the inputs for the filter. Only B2 changes effectively. I have not coded in VBA before so most of this code is copied from websites and modified for my workbook. Below is my code. Appreciate any help on this.
Option Explicit
'Create variable to hold values
Dim Monitored()
Sub Advanced_Filtering()
Range("A7:G730").AdvancedFilter Action:=xlFilterCopy, CriteriaRange:=Range("A1:G2"), CopyToRange:=Sheets("Sheet3").Range("L1:R1")
End Sub
Private Sub Worksheet_Activate()
Monitored = Range("B2:C2").Value 'Read in value prior to any changes
End Sub
Private Sub Worksheet_Calculate()
Dim Xrg As Range, c As Range, x As Integer
Set Xrg = Range("B2:C2")
If Not Intersect(Xrg, Range("B2:C2")) Is Nothing Then
Application.EnableEvents = False
'Compare monitored cell with initial value
x = 1
For Each c In Range("B2:C2")
If c.Value <> Monitored(x, 1) Then
Call Advanced_Filtering
Monitored(x, 1) = c.Value
End If
x = x + 1
Next c
'Reset events
Application.EnableEvents = True
End If
End Sub
解决方案
Probably the easiest fix would be to place the Worksheet_Change event under the cells that generate the value on your cell B2, as changes in formula values don't trigger the Change event... or you can change it to Worksheet_Calculate event instead, this will pick up changes in formula results as below:
Option Explicit
'Create variable to hold values
Dim Monitored
Sub Advanced_Filtering()
Range("A7:G730").AdvancedFilter Action:=xlFilterCopy, CriteriaRange:=Range("A1:G2"), CopyToRange:=Sheets("Sheet3").Range("L1:R1")
End Sub
Private Sub Worksheet_Activate()
Monitored = Range("B2").Value 'Read in value prior to any changes
End Sub
Private Sub Worksheet_Calculate()
Dim Xrg As Range
Set Xrg = Range("B2")
If Not Intersect(Xrg, Range("B2")) Is Nothing Then
Application.EnableEvents = False
'Compare monitored cell with initial value
If Range("B2").Value <> Monitored Then
'Do things as a result of a change
Call Advanced_Filtering
'Reset Variable with new monitored value
Monitored = Range("B2").Value
End If
'Reset events
Application.EnableEvents = True
End If
End Sub
UPDATE:
To use a Range of cells instead of a single one, you should change the following:
Option Explicit
'Create variable to hold values
Dim Monitored()
Sub Advanced_Filtering()
Range("A7:G730").AdvancedFilter Action:=xlFilterCopy, CriteriaRange:=Range("A1:G2"), CopyToRange:=Sheets("Sheet3").Range("L1:R1")
End Sub
Private Sub Worksheet_Activate()
Monitored = Range("B2:C2").Value 'Read in value prior to any changes
End Sub
Private Sub Worksheet_Calculate()
Dim Xrg As Range, c As Range, x As Integer
Set Xrg = Range("B2:C2")
If Not Intersect(Xrg, Range("B2:C2")) Is Nothing Then
Application.EnableEvents = False
'Compare monitored cell with initial value
x = 1
For Each c In Range("B2:C2")
If c.Value <> Monitored(1, x) Then
Call Advanced_Filtering
Monitored(1, x) = c.Value
End If
x = x + 1
Next c
'Reset events
Application.EnableEvents = True
End If
End Sub
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