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Hide Unhide Subform Columns

Posted on 2008-06-25
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Last Modified: 2013-11-28
I'm trying to create a function that hides and unhides subform columns through the use of a list box.  It is working incorrectly as it is hiding and unhiding the wrong columns.  This is a challenge question as I've asked the question before in a seperate forum and no one has answered it.  I'm hoping it has a better chance here.  Thanks.  


Public Function SortSubform()

On Error GoTo Err_Handler
 

   Dim qDef As Object

   Dim strSql As String

   Dim vItem As Variant

   Dim NumFields As Integer

   Dim intCounter As Integer

   NumFields = 0

   ' loop through selected field names

   For Each vItem In Me.lstFieldList.ItemsSelected

      strSql = strSql & ",[" & Me.lstFieldList.ItemData(vItem) & "]"

      NumFields = NumFields + 1

   Next vItem
 

  For intCounter = 0 To NumFields

    Me.subformCertData.Form.Controls(lstFieldList.ItemData(intCounter)).ColumnHidden = True

    For Each vItem In Me.lstFieldList.ItemsSelected

    Me.subformCertData.Form.Controls(lstFieldList.ItemData(intCounter)).ColumnHidden = Not (lstFieldList.Selected(intCounter))

  Next vItem

  Next intCounter

 

   ' build new StrSQL statement
 

 strSql = "Select * " & _

"FROM tblCertificationData"
 

   ' add criteria for selected fields.

Strfield = "ReceivedDate"
 

strSql = strSql & " WHERE ((([ProcurementNumber]) Like [Forms]![frmSearch]![txtProcurementNumber]) And (([ReceivedDate]) Between [Forms]![frmSearch]![txtStartDate] And [Forms]![frmSearch]![txtEndDate]) AND (Isnull(PurchaseOrderNum) or ([PurchaseOrderNum]) Like [Forms]![frmSearch]![PONum]) And (([ReceivedBy]) Like [Forms]![frmSearch]![cboAnalystID]) AND (([EquipmentType]) Like [Forms]![frmSearch]![cboEquipmentType]) AND (([DistrictNumber]) Like [Forms]![frmSearch]![cboDistrict]))" & _

" Order by [ProcurementNumber];"
 

   ' save query with new StrSQL statement

   Set qDef = CurrentDb.QueryDefs("qryProjectCriteria")

   qDef.SQL = strSql

 

   Set qDef = Nothing

  Me.subformCertData.Form.RecordSource = strSql

   ' Set Recordsource of Subform

   'Me.SearchLst.ColumnCount = NumFields

Exit_Err_Handler:

    Exit Function
 

Err_Handler:

    MsgBox Err.Description

    Resume Exit_Err_Handler

End Function

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Question by:dkintaudi
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20 Comments
 
LVL 23

Expert Comment

by:irudyk
Comment Utility
Try the following revised code
'hide all columns first

  For intCounter = 0 To NumFields

    Me.subformCertData.Form.Controls(lstFieldList.ItemData(intCounter)).ColumnHidden = True

  Next intCounter
 

'unhide the necessary columns

    For Each vItem In Me.lstFieldList.ItemsSelected

    Me.subformCertData.Form.Controls(lstFieldList.ItemData(intCounter)).ColumnHidden = Not (lstFieldList.Selected(intCounter))

  Next vItem

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LVL 27

Expert Comment

by:jjafferr
Comment Utility
Can you please explain your requirement a bit more, it is unclear to me.

thanks

jaffer
0
 
LVL 23

Expert Comment

by:irudyk
Comment Utility
Well, it looked to me that in your code you're looping through each field to hide it, but then you run another loop to hide/display all selected items in the listbox. By using the revised code, you would first hide all coulmns and then loop to display all of selected items in the listbox.  There are other ways to accomplish this, but I thought I'd use the code you had and just reoreder it a bit.  Give it a try to see if it works...if it doesn't you can always change it back :)
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LVL 75

Expert Comment

by:DatabaseMX (Joe Anderson - Access MVP)
Comment Utility
" subform columns"

Is this subform in Datasheet View or Continuous View ?

mx
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Author Comment

by:dkintaudi
Comment Utility
The subform is in Continous View
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LVL 75

Expert Comment

by:DatabaseMX (Joe Anderson - Access MVP)
Comment Utility
The ColumnHidden  property only applies to Datasheet View.  You need to use the Visible property.

mx
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Author Comment

by:dkintaudi
Comment Utility
I tried it, and it didn't work.  
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Author Comment

by:dkintaudi
Comment Utility
irudyk is there any solutions you could think of to hide unhide columns that might work better?  At this point I'm open to suggestions.  
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LVL 27

Expert Comment

by:jjafferr
Comment Utility
the best way to do it is to Re-Arrange the fields:

Although you can set the field property to hidden (OR set its width to Zero), but that will leave an empty space in place of the hidden field (which is a column here),

so you will have to move the other columns to fill this space, thus Re-Arrange the fileds (columns).

jaffer
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Expert Comment

by:DatabaseMX (Joe Anderson - Access MVP)
Comment Utility
And if you really want to hide columns, I would consider Datasheet View.

mx
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Author Comment

by:dkintaudi
Comment Utility
I've changed ti to Datasheet view, and its still not doing it.  
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LVL 27

Expert Comment

by:jjafferr
Comment Utility
I agree with mx,
that would be your easiest way out, which would take you a minute to do,
and irudyk already gave you the code to hide/unhide.

jaffer

way to go mx :)
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Author Comment

by:dkintaudi
Comment Utility
Its still not hiding and unhiding the proper columns could something be preventing it from hiding and unhiding the right columns?  I'm selecting the items I want from a list box, the sub form is in data sheet view, and then I click on the list box to hide and unhide the columns I want.  The only problem is that it is hiding and unhiding the wrong columns.  
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Expert Comment

by:jjafferr
Comment Utility
can you please upload a sample mdb, so that we can give the right solution.

jaffer
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Author Comment

by:dkintaudi
Comment Utility
The program consists of a front end and backend database.  The password to get to the Administrative view of the front end database is Trial1.  It must be typed in exactly as Trial1.  It can be found in the tblPassword table where the user name is SysAdmin in the backend database 06-07 IT CertificationNew_be.mdb database located in the ITCertBE folder.  Wow that was a mouthful lol.  
The back end must be in the ITCertBE folder in order for it to work.  

You won't be able to see the code unless you enter Trial1 as the password.  Once the password has been entered, click the EnterAdminView button, find the frmSearch form and find the SortSubform function.  That is the function I'm having trouble with.  
Trial1.zip
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Author Comment

by:dkintaudi
Comment Utility
Hope that helps jafferr:
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LVL 119

Expert Comment

by:Rey Obrero
Comment Utility
try this codes ' ** take note that i just corrected the codes for hide/unhide columns **


Public Function SortSubform()
On Error GoTo Err_Handler
Dim ctlArr(), j, x, i
   Dim qDef As Object
   Dim strSql As String
   Dim vItem As Variant
   Dim NumFields As Integer
   Dim intCounter As Integer
   NumFields = 0
   ' loop through selected field names
   For Each vItem In Me.lstFieldList.ItemsSelected
      strSql = strSql & ",[" & Me.lstFieldList.ItemData(vItem) & "]"
      NumFields = NumFields + 1
   Next vItem

            '  For intCounter = 0 To NumFields
            '    Me.subformCertData.Form.Controls(lstFieldList.ItemData(intCounter)).ColumnHidden = True
            '    For Each vItem In Me.lstFieldList.ItemsSelected
            '    Me.subformCertData.Form.Controls(lstFieldList.ItemData(intCounter)).ColumnHidden = Not (lstFieldList.Selected(intCounter))
            '    Next vItem
            '  Next intCounter

'hide/unhide codes
i = 0
With Me.lstFieldList
    For j = 0 To .ListCount - 1
        If .Selected(j) = True Then
            ReDim Preserve ctlArr(i)
            ctlArr(i) = .ItemData(j)
            i = i + 1
        End If
    Next
End With
 With Me.lstFieldList
    For x = 0 To .ListCount - 1
    Me.subformCertData.Form.Controls(.ItemData(x)).ColumnHidden = True
    Next
    For j = 0 To UBound(ctlArr)
    Me.subformCertData.Form.Controls(ctlArr(j)).ColumnHidden = False
    Next
End With
'end hide/unhide codes


   ' build new StrSQL statement

 strSql = "Select * " & _
"FROM tblCertificationData"

   ' add criteria for selected fields.
Strfield = "ReceivedDate"

strSql = strSql & " WHERE ((([ProcurementNumber]) Like [Forms]![frmSearch]![txtProcurementNumber]) And (([ReceivedDate]) Between [Forms]![frmSearch]![txtStartDate] And [Forms]![frmSearch]![txtEndDate]) AND (Isnull(PurchaseOrderNum) or ([PurchaseOrderNum]) Like [Forms]![frmSearch]![PONum]) And (([ReceivedBy]) Like [Forms]![frmSearch]![cboAnalystID]) AND (([EquipmentType]) Like [Forms]![frmSearch]![cboEquipmentType]) AND (([DistrictNumber]) Like [Forms]![frmSearch]![cboDistrict]))" & _
" Order by [ProcurementNumber];"

   ' save query with new StrSQL statement
   Set qDef = CurrentDb.QueryDefs("qryProjectCriteria")
   qDef.SQL = strSql
 
   Set qDef = Nothing
  Me.subformCertData.Form.RecordSource = strSql
   ' Set Recordsource of Subform
   'Me.SearchLst.ColumnCount = NumFields
Exit_Err_Handler:
    Exit Function

Err_Handler:
    MsgBox Err.Description
    Resume Exit_Err_Handler
End Function
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LVL 119

Accepted Solution

by:
Rey Obrero earned 500 total points
Comment Utility
and another thing , you are missing a field in your subform { txtReportNum } you have to add this to the subform or delete it from the table or you will get an error.
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Author Comment

by:dkintaudi
Comment Utility
Thanks very much capricorn1.  
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Author Closing Comment

by:dkintaudi
Comment Utility
My real problem occurred cause I had not added the field to the subform and then I somehow got distracted and went on a tangent lol.  Great help and timely.  
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