SHOW/HIDE an Array of Rows?

J

jvanbonn

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Joined
Mar 11, 2011
Messages
71
I'm trying to write a subroutine to SHOW/HIDE multiple lines triggered by changing cell A1 and based on the column A row (i) set to TRUE or FALSE. I'm trying to figure out an elegant way to create an array of cell addresses in column A that have the value TRUE, and then hide all rows in that array. I was attempting this without looping the code for efficiency & speed.

The below code is what I would like to work, but I'm not having any luck yet.

Code: 
Private Sub Worksheet_Change(ByVal Target As Range)
Dim rowlist(2) As String

If Target.Column = 1 And Target.row = 1 Then

'sample array
rowlist(1) = "A6"
rowlist(2) = "A9"

With ActiveSheet
.Range(Array(rowlist)).EntireRow.Hidden = True
End With

End If

End Sub
 

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One way might be to loop through each element of the array...

Code: 
[font=Verdana][color=darkblue]Private[/color] [color=darkblue]Sub[/color] Worksheet_Change([color=darkblue]ByVal[/color] Target [color=darkblue]As[/color] Range)

    [color=darkblue]Dim[/color] rowlist(1) [color=darkblue]As[/color] [color=darkblue]String[/color]
    
    [color=darkblue]If[/color] Target.Column = 1 And Target.Row = 1 [color=darkblue]Then[/color]
    
    [color=green]'sample array[/color]
    rowlist(0) = "A6"
    rowlist(1) = "A9"
    
    [color=darkblue]For[/color] i = [color=darkblue]LBound[/color](rowlist) [color=darkblue]To[/color] [color=darkblue]UBound[/color](rowlist)
        Range(rowlist(i)).EntireRow.Hidden = [color=darkblue]True[/color]
    [color=darkblue]Next[/color] i
    
    [color=darkblue]End[/color] [color=darkblue]If[/color]

End [color=darkblue]Sub[/color]
[/font]

Notice that since the default base for arrays is 0, I declared the array with the number 1 as the upper index for a two element array. Another way might be to use the Union method of the Application...

Code: 
[font=Verdana][color=darkblue]Private[/color] [color=darkblue]Sub[/color] Worksheet_Change([color=darkblue]ByVal[/color] Target [color=darkblue]As[/color] Range)

    [color=darkblue]Dim[/color] Rng [color=darkblue]As[/color] Range

    [color=darkblue]If[/color] Target.Address = "$A$1" [color=darkblue]Then[/color]
    
        [color=darkblue]Set[/color] Rng = Union(Range("A6"), Range("A9"))
        
        Rng.EntireRow.Hidden = [color=darkblue]True[/color]
    
    [color=darkblue]End[/color] [color=darkblue]If[/color]

End [color=darkblue]Sub[/color]
[/font]

In either case, you might want to test to make sure that the target cell is not blank before proceeding to hide the desired rows.
 
Upvote 0
Beautiful!

Great examples; you gave me just what I needed!

Sample Worksheet:
<table class="excel1" border="1" cellpadding="0" cellspacing="0"><tbody><tr style="height: 12pt;" valign="bottom" bgcolor="#999999" height="16"><td style="height: 12pt; width: 10pt;" align="center">
</td><td style="height: 12pt; width: 48pt;" align="center" height="16">A</td><td style="width: 48pt;" align="center">B</td><td style="width: 48pt;" align="center">C</td><td style="width: 48pt;" align="center">D</td><td style="width: 48pt;" align="center">E</td><td style="width: 48pt;" align="center">F</td></tr><tr style="height: 12pt;" valign="bottom" height="16"><td style="height: 12pt; width: 15pt;" width="64" align="center" bgcolor="#999999">1</td><td style="height: 12pt; width: 48pt;" width="64" align="center" height="16">FALSE</td><td style="width: 48pt;" width="64">
</td><td style="width: 48pt;" width="64">
</td><td style="width: 48pt;" width="64">
</td><td style="width: 48pt;" width="64">
</td><td style="width: 48pt;" width="64">
</td></tr><tr style="height: 12pt;" height="16"><td style="height: 12pt;" align="center" bgcolor="#999999">2</td><td style="height: 12pt;" height="16">
</td><td>
</td><td>
</td><td>
</td><td>
</td><td>
</td></tr><tr style="height: 12pt;" height="16"><td style="height: 12pt;" align="center" bgcolor="#999999">3</td><td style="height: 12pt;" height="16">
</td><td>
</td><td>
</td><td>
</td><td>
</td><td>
</td></tr><tr style="height: 12pt;" valign="bottom" height="16"><td style="height: 12pt;" align="center" bgcolor="#999999">4</td><td class="excel2" style="height: 12pt;" bgcolor="#dbe5f1" height="16">
</td><td class="excel2" bgcolor="#dbe5f1">Header</td><td class="excel2" bgcolor="#dbe5f1">A</td><td class="excel2" bgcolor="#dbe5f1">B</td><td class="excel2" bgcolor="#dbe5f1">C</td><td class="excel2" bgcolor="#dbe5f1">D</td></tr><tr style="height: 12pt;" valign="bottom" height="16"><td style="height: 12pt;" align="center" bgcolor="#999999">5</td><td style="height: 12pt;" align="center" height="16">FALSE</td><td>hi</td><td>hi</td><td>hi</td><td>hi</td><td>hi</td></tr><tr style="height: 12pt;" valign="bottom" height="16"><td style="height: 12pt;" align="center" bgcolor="#999999">6</td><td style="height: 12pt;" align="center" height="16">TRUE</td><td>hi</td><td>hi</td><td>hi</td><td>hi</td><td>hi</td></tr><tr style="height: 12pt;" valign="bottom" height="16"><td style="height: 12pt;" align="center" bgcolor="#999999">7</td><td style="height: 12pt;" align="center" height="16">FALSE</td><td>hi</td><td>hi</td><td>hi</td><td>hi</td><td>hi</td></tr><tr style="height: 12pt;" valign="bottom" height="16"><td style="height: 12pt;" align="center" bgcolor="#999999">8</td><td style="height: 12pt;" align="center" height="16">FALSE</td><td>hi</td><td>hi</td><td>hi</td><td>hi</td><td>hi</td></tr><tr style="height: 12pt;" valign="bottom" height="16"><td style="height: 12pt;" align="center" bgcolor="#999999">9</td><td style="height: 12pt;" align="center" height="16">TRUE</td><td>hi</td><td>hi</td><td>hi</td><td>hi</td><td>hi</td></tr><tr style="height: 12pt;" valign="bottom" height="16"><td style="height: 12pt;" align="center" bgcolor="#999999">10</td><td style="height: 12pt;" align="center" height="16">FALSE</td><td>hi</td><td>hi</td><td>hi</td><td>hi</td><td>hi</td></tr><tr style="height: 12pt;" valign="bottom" height="16"><td style="height: 12pt;" align="center" bgcolor="#999999">11</td><td style="height: 12pt;" align="center" height="16">FALSE</td><td>hi</td><td>hi</td><td>hi</td><td>hi</td><td>hi</td></tr><tr style="height: 12pt;" valign="bottom" height="16"><td style="height: 12pt;" align="center" bgcolor="#999999">12</td><td style="height: 12pt;" align="center" height="16">FALSE</td><td>hi</td><td>hi</td><td>hi</td><td>hi</td><td>hi</td></tr></tbody></table>


Code: 
Private Sub Worksheet_Change(ByVal Target As Range)
Application.EnableEvents = False

Dim w As Worksheet, t As Worksheet
Dim h As Long, i As Long, j As Long, k As Long
Dim Rng As Range

''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
'  h is the row index of the selected range (looping)
'  i is the row index of first non-header row of selected range
'  j is the row index of the last row of the selected range
'  k is the kth member of the Range Rng
'
'  Rng is the union of rows in the selected range where
'       column A has the value "TRUE" <= to be hidden
'
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''


If Target.Address = "$A$1" And Target.Value = True Then
  With ActiveSheet.Cells(4, 2).CurrentRegion
  i = .Item(2, 1).row       'FIRST ROW OF DATA
  j = .Item(.Rows.Count, .Columns.Count).row    'LAST ROW OF DATA
  End With

  k = 0
    
    For h = i To j Step 1
      If ActiveSheet.Cells(h, 1) = True Then
        k = k + 1
          If k = 1 Then
            Set Rng = ActiveSheet.Cells(h, 1)
            Debug.Print Rng.Address
          Else
            Set Rng = Union(Rng, ActiveSheet.Cells(h, 1))
            Debug.Print Rng.Address
          End If
      End If
    Next h
    
  Rng.EntireRow.Hidden = True

ElseIf Target.Address = "$A$1" And Target.Value = False Then
 
  ActiveSheet.Range(Cells(1, 1), Cells(Rows.Count, Columns.Count)).EntireRow.Hidden = False

End If
Application.EnableEvents = True
End Sub
My actual sheets have checkboxes in cells A1 and A5 through A(k) to set the corresponding cell in Column A as TRUE or FALSE. That way there are four conditions with three outcomes.
1. A1 TRUE & A(k) TRUE : Row A(k) Hidden
2. A1 TRUE & A(k) FALSE : Row A(k) Visible & Black Text
3. A1 FALSE & A(k) TRUE : Row A(k) Conditionally Formatted to Strike, Italic, & Grey
4 A1 FALSE & A(k) FALSE : Row A(k) Visible & Black Text

<table class="excel1" border="1" cellpadding="0" cellspacing="0"><tbody><tr style="height: 12pt;" valign="bottom" bgcolor="#999999" height="16"><td style="height: 12pt; width: 10pt;" align="center">
</td><td style="height: 12pt; width: 48pt;" align="center" height="16">A</td><td style="width: 48pt;" align="center">B</td><td style="width: 48pt;" align="center">C</td><td style="width: 48pt;" align="center">D</td><td style="width: 48pt;" align="center">E</td><td style="width: 48pt;" align="center">F</td></tr><tr style="height: 12pt;" valign="bottom" height="16"><td style="height: 12pt; width: 15pt;" width="64" align="center" bgcolor="#999999">1</td><td style="height: 12pt; width: 48pt;" width="64" align="center" height="16">FALSE</td><td style="width: 48pt;" width="64">
</td><td style="width: 48pt;" width="64">
</td><td style="width: 48pt;" width="64">
</td><td style="width: 48pt;" width="64">
</td><td style="width: 48pt;" width="64">
</td></tr><tr style="height: 12pt;" height="16"><td style="height: 12pt;" align="center" bgcolor="#999999">2</td><td style="height: 12pt;" height="16">
</td><td>
</td><td>
</td><td>
</td><td>
</td><td>
</td></tr><tr style="height: 12pt;" height="16"><td style="height: 12pt;" align="center" bgcolor="#999999">3</td><td style="height: 12pt;" height="16">
</td><td>
</td><td>
</td><td>
</td><td>
</td><td>
</td></tr><tr style="height: 12pt;" valign="bottom" height="16"><td style="height: 12pt;" align="center" bgcolor="#999999">4</td><td class="excel2" style="height: 12pt;" bgcolor="#dbe5f1" height="16">
</td><td class="excel2" bgcolor="#dbe5f1">Header</td><td class="excel2" bgcolor="#dbe5f1">A</td><td class="excel2" bgcolor="#dbe5f1">B</td><td class="excel2" bgcolor="#dbe5f1">C</td><td class="excel2" bgcolor="#dbe5f1">D</td></tr><tr style="height: 12pt;" valign="bottom" height="16"><td style="height: 12pt;" align="center" bgcolor="#999999">5</td><td style="height: 12pt;" align="center" height="16">FALSE</td><td>hi</td><td>hi</td><td>hi</td><td>hi</td><td>hi</td></tr><tr style="height: 12pt;" valign="bottom" height="16"><td style="height: 12pt;" align="center" bgcolor="#999999">6</td><td style="height: 12pt;" align="center" height="16">TRUE</td><td>hi</td><td>hi</td><td>hi</td><td>hi</td><td>hi</td></tr><tr style="height: 12pt;" valign="bottom" height="16"><td style="height: 12pt;" align="center" bgcolor="#999999">7</td><td style="height: 12pt;" align="center" height="16">FALSE</td><td>hi</td><td>hi</td><td>hi</td><td>hi</td><td>hi</td></tr><tr style="height: 12pt;" valign="bottom" height="16"><td style="height: 12pt;" align="center" bgcolor="#999999">8</td><td style="height: 12pt;" align="center" height="16">FALSE</td><td>hi</td><td>hi</td><td>hi</td><td>hi</td><td>hi</td></tr><tr style="height: 12pt;" valign="bottom" height="16"><td style="height: 12pt;" align="center" bgcolor="#999999">9</td><td style="height: 12pt;" align="center" height="16">TRUE</td><td>hi</td><td>hi</td><td>hi</td><td>hi</td><td>hi</td></tr><tr style="height: 12pt;" valign="bottom" height="16"><td style="height: 12pt;" align="center" bgcolor="#999999">10</td><td style="height: 12pt;" align="center" height="16">FALSE</td><td>hi</td><td>hi</td><td>hi</td><td>hi</td><td>hi</td></tr><tr style="height: 12pt;" valign="bottom" height="16"><td style="height: 12pt;" align="center" bgcolor="#999999">11</td><td style="height: 12pt;" align="center" height="16">FALSE</td><td>hi</td><td>hi</td><td>hi</td><td>hi</td><td>hi</td></tr><tr style="height: 12pt;" valign="bottom" height="16"><td style="height: 12pt;" align="center" bgcolor="#999999">12</td><td style="height: 12pt;" align="center" height="16">FALSE</td><td>hi</td><td>hi</td><td>hi</td><td>hi</td><td>hi</td></tr></tbody></table>


<table class="excel1" border="1" cellpadding="0" cellspacing="0"><tbody><tr style="height: 12pt;" valign="bottom" bgcolor="#999999" height="16"><td style="height: 12pt; width: 10pt;" align="center">
</td><td style="height: 12pt; width: 48pt;" align="center" height="16">A</td><td style="width: 48pt;" align="center">B</td><td style="width: 48pt;" align="center">C</td><td style="width: 48pt;" align="center">D</td><td style="width: 48pt;" align="center">E</td><td style="width: 48pt;" align="center">F</td></tr><tr style="height: 12pt;" valign="bottom" height="16"><td style="height: 12pt; width: 15pt;" width="64" align="center" bgcolor="#999999">1</td><td style="height: 12pt; width: 48pt;" width="64" align="center" height="16">TRUE</td><td style="width: 48pt;" width="64">
</td><td style="width: 48pt;" width="64">
</td><td style="width: 48pt;" width="64">
</td><td style="width: 48pt;" width="64">
</td><td style="width: 48pt;" width="64">
</td></tr><tr style="height: 12pt;" height="16"><td style="height: 12pt;" align="center" bgcolor="#999999">2</td><td style="height: 12pt;" height="16">
</td><td>
</td><td>
</td><td>
</td><td>
</td><td>
</td></tr><tr style="height: 12pt;" height="16"><td style="height: 12pt;" align="center" bgcolor="#999999">3</td><td style="height: 12pt;" height="16">
</td><td>
</td><td>
</td><td>
</td><td>
</td><td>
</td></tr><tr style="height: 12pt;" valign="bottom" height="16"><td style="height: 12pt;" align="center" bgcolor="#999999">4</td><td class="excel2" style="height: 12pt;" bgcolor="#dbe5f1" height="16">
</td><td class="excel2" bgcolor="#dbe5f1">Header</td><td class="excel2" bgcolor="#dbe5f1">A</td><td class="excel2" bgcolor="#dbe5f1">B</td><td class="excel2" bgcolor="#dbe5f1">C</td><td class="excel2" bgcolor="#dbe5f1">D</td></tr><tr style="height: 12pt;" valign="bottom" height="16"><td style="height: 12pt;" align="center" bgcolor="#999999">5</td><td style="height: 12pt;" align="center" height="16">FALSE</td><td>hi</td><td>hi</td><td>hi</td><td>hi</td><td>hi</td></tr><tr style="height: 12pt;" valign="bottom" height="16"><td style="height: 12pt;" align="center" bgcolor="#999999">7</td><td style="height: 12pt;" align="center" height="16">FALSE</td><td>hi</td><td>hi</td><td>hi</td><td>hi</td><td>hi</td></tr><tr style="height: 12pt;" valign="bottom" height="16"><td style="height: 12pt;" align="center" bgcolor="#999999">8</td><td style="height: 12pt;" align="center" height="16">FALSE</td><td>hi</td><td>hi</td><td>hi</td><td>hi</td><td>hi</td></tr><tr style="height: 12pt;" valign="bottom" height="16"><td style="height: 12pt;" align="center" bgcolor="#999999">10</td><td style="height: 12pt;" align="center" height="16">FALSE</td><td>hi</td><td>hi</td><td>hi</td><td>hi</td><td>hi</td></tr><tr style="height: 12pt;" valign="bottom" height="16"><td style="height: 12pt;" align="center" bgcolor="#999999">11</td><td style="height: 12pt;" align="center" height="16">FALSE</td><td>hi</td><td>hi</td><td>hi</td><td>hi</td><td>hi</td></tr><tr style="height: 12pt;" valign="bottom" height="16"><td style="height: 12pt;" align="center" bgcolor="#999999">12</td><td style="height: 12pt;" align="center" height="16">FALSE</td><td>hi</td><td>hi</td><td>hi</td><td>hi</td><td>hi</td></tr></tbody></table>

Again, Thanks so much!
 
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