Views

Histats

Vitrine

VBA Access - Onde este CAMPO é usado?

Esta é uma funcionalidade que lhe quebrará um "galhão". Sua utilidade? Vascular todas as suas tabelas, formulários, relatórios e identificar onde o seu campo é particularmente usado. São não faz as buscas no código VBA (o que o Access lhe propicia facilmente).

Poderá utilizar essa funcionalidade sob os seguintes cenários:

  • Um relatório requer um parâmetro, mas você não consegue ver onde o nome do campo foi usado.
  • Antes que renomeie um campo, você quer saber quais objetos na sua aplicação dependem deste campo.

Para adicionar esta funcionalidade à sua aplicação, basta que:

  1. Crie um novo módulo
  2. Copie o código abaixo, e cole-o dentro do seu novo módulo.
  3. Certifique-se de que o MS Access entende o código colado: Compile o código.
  4. Salve o código com o nome que achar melhor, algo como basSearchField.

Para usá-lot, basta que abra a janela "Immediate Windo" (Ctrl+G) e digite:
    ? FindField()

The utility does more than just search for the field's Name:

  • In tables and queries, it searches searches the Caption. The user knows the field by this name, and sometimes Access misidentifies a field based on its caption (if Name AutoCorrect is turned on.)
  • In queries, it checks the SourceName (i.e. the original name of the field in a table) since the field may be aliased.
  • In forms and reports, it searches the Name, ControlSource, and Caption of controls.
  • For reports, it searches the GroupLevels (the Sorting and Grouping pane.)
  • For subforms and subreports, it checks the LinkMasterFields and LinkChildFields.
  • For all object types, it searches the Filter and OrderBy properties, as these cause Access to ask for a parameter.

If you want something more, there are commercial utilities such as Find And Replace (Ricks World), Speed Ferret (Black Moshannon), or Total Access Analyzer (FMS Inc.)



Option Compare Database
Option Explicit

'Purpose: Search your database (tables, queries, forms, reports)
' to find where a particular field name is used.
'Release: April 2007 (a work in progress.)
'Documentation: http://allenbrowne.com/ser-73.html
'Author: Allen Browne (allen@allenbrowne.com)
'Versions: Requires Access 2000 and later.
' For Access 2000, you will need to remove this from the end of several lines:
' , WindowMode:=acHidden

'Usage examples
'==============
' To find where InvoiceID is used in Report1:
' ? FindField("InvoiceID", "Report1")
' To find where ClientID is used in all forms and reports:
' ? FindField("ClientID",,ffoForm + ffoReport)
' To find anywhere EventDate is used:
' ? FindField("EntryDate")

'Summary
'=======
' Tables Searches the Name and Caption of the fields, and the Filter and OrderBy of the table.
' Queries: Searches the Name, SourceName, and Caption of fields; Filter and OrderBy of query.
' Forms: Searches Name, ControlSource, Caption of controls,
' and LinkMasterFields/LinkChildFields of subform controls
' Reports: Searches Name, ControlSoruce, Caption of controls, Control Source of Group Levels,
' and LinkMasterFields/LinkChildFields of subreport controls

'Notes
'=====
' When you type a SQL statement into the RecordSource of a form/report, or the RowSource
' of a combo/listbox, Access creates a saved query with a name prefixed with ~sq_.
' With reports, click Ok if notified the report was set up for another printer.
'Does not search RecordSource of form/report, nor RowSource of combo/list box.
'Does not handle renamed fields that might be under the control of Name AutoCorrect.
'Does not handle query parameters (which are not fields.)

'Bitfield constants: their sum indicates which types of object to search.
Public Enum FindFieldObject
ffoTable = 1 'Search table fields.
ffoQuery = 2 'Search query fields.
ffoForm = 4 'Search form controls and properties.
ffoReport = 8 'Search report controls, properties, and group levels.
ffoAll = 15 'Search all (tables, queries, forms, and reports.)
End Enum

Public Function FindField(strFieldName As String, _
Optional strObjectName As String, _
Optional iObjectTypes As FindFieldObject = ffoAll, _
Optional bExactMatchOnly As Boolean) As Long
On Error GoTo Err_Handler
'Purpose: Search the current database for where a field name is used. MAIN FUNCTION.
'Arguments: strFieldName: the field name to find (or part of field name.)
' strObjectName: Leave blank to search all objects. Only named object if entered.
' iObjectTypes: determines what objects to search for. Sum of the types you want.
' bExactMatchOnly: not matched with wildcards if this is True.
'Return: Number of matches found.
' List of items in the Immediate Window (Ctrl+G.)
'Usage: To search tables and queries for a field named Inactive:
' Call FindField("Inactive", ffoTable + ffoQuery)
Dim db As DAO.Database 'This database
Dim tdf As DAO.TableDef 'Each table
Dim qdf As DAO.QueryDef 'Each query
Dim accObj As AccessObject 'Each form/report.
Dim strDoc As String 'Name of form/report.
Dim strText2Match As String 'strFieldName with wildcards.
Dim bLeaveOpen As Boolean 'Flag to leave the form/report open if it was already open.
Dim lngKt As Long 'Count of matches.

'Initialize
Set db = CurrentDb()
If bExactMatchOnly Then
strText2Match = strFieldName
Else
strText2Match = "*" & strFieldName & "*"
End If

'Search Tables
If (iObjectTypes And ffoTable) <> 0 Then
If strObjectName <> vbNullString Then
'Just one table (if it exists)
If ObjectExists(db.TableDefs, strObjectName) Then
Set tdf = db.TableDefs(strObjectName)
lngKt = lngKt + FindInTableQuery(tdf, strText2Match)
End If
Else
'All tables
For Each tdf In db.TableDefs
lngKt = lngKt + FindInTableQuery(tdf, strText2Match)
Next
End If
End If

'Search Queries
If (iObjectTypes And ffoQuery) <> 0 Then
If strObjectName <> vbNullString Then
'Just one query (if it exists)
If ObjectExists(db.QueryDefs, strObjectName) Then
Set qdf = db.QueryDefs(strObjectName)
lngKt = lngKt + FindInTableQuery(qdf, strText2Match)
End If
Else
'All queries
For Each qdf In db.QueryDefs
lngKt = lngKt + FindInTableQuery(qdf, strText2Match)
Next
End If
End If

'Search Forms.
If (iObjectTypes And ffoForm) <> 0 Then
If strObjectName <> vbNullString Then
'Just one form (if it exists)
If ObjectExists(CurrentProject.AllForms, strObjectName) Then
Set accObj = CurrentProject.AllForms(strObjectName)
strDoc = accObj.Name
bLeaveOpen = accObj.IsLoaded
DoCmd.OpenForm strDoc, acDesign, WindowMode:=acHidden
'Search
lngKt = lngKt + FindInFormReport(Forms(strDoc), strText2Match)
'Close unless already open.
If Not bLeaveOpen Then
DoCmd.Close acForm, strDoc, acSaveNo
End If
End If
Else
'All forms
For Each accObj In CurrentProject.AllForms
strDoc = accObj.Name
bLeaveOpen = accObj.IsLoaded
DoCmd.OpenForm strDoc, acDesign, WindowMode:=acHidden
'Search
lngKt = lngKt + FindInFormReport(Forms(strDoc), strText2Match)
'Close unless already open.
If Not bLeaveOpen Then
DoCmd.Close acForm, strDoc, acSaveNo
End If
Next
End If
End If

'Search Reports.
If (iObjectTypes And ffoReport) <> 0 Then
If strObjectName <> vbNullString Then
'Just one report (if it exists)
If ObjectExists(CurrentProject.AllReports, strObjectName) Then
Set accObj = CurrentProject.AllReports(strObjectName)
strDoc = accObj.Name
bLeaveOpen = accObj.IsLoaded
DoCmd.OpenReport strDoc, acDesign, WindowMode:=acHidden
'Search
lngKt = lngKt + FindInFormReport(Reports(strDoc), strText2Match)
'Check the Group Levels as well.
lngKt = lngKt + FindInGroupLevel(Reports(strDoc), strText2Match)
'Close unless already open.
If Not bLeaveOpen Then
DoCmd.Close acReport, strDoc, acSaveNo
End If
End If
Else
'All reports
For Each accObj In CurrentProject.AllReports
strDoc = accObj.Name
bLeaveOpen = accObj.IsLoaded
DoCmd.OpenReport strDoc, acDesign, WindowMode:=acHidden
'Search
lngKt = lngKt + FindInFormReport(Reports(strDoc), strText2Match)
'Check the Group Levels as well.
lngKt = lngKt + FindInGroupLevel(Reports(strDoc), strText2Match)
'Close unless already open.
If Not bLeaveOpen Then
DoCmd.Close acReport, strDoc, acSaveNo
End If
Next
End If
End If

Exit_Handler:
FindField = lngKt
'Clean up
Set accObj = Nothing
Set qdf = Nothing
Set tdf = Nothing
Set db = Nothing
Exit Function

Err_Handler:
MsgBox "Error " & Err.Number & ": " & Err.Description, vbExclamation, "FindField"
Resume Exit_Handler
End Function

Private Function FindInTableQuery(obj As Object, strText2Match As String) As Long
On Error GoTo Err_Handler
'Purpose: Find fields where the Name, SourceField, or Caption matches the string.
'Arguments: obj = the TableDef or QueryDef to search.
' strText2Match is the text to search for, including any wildcards.
'Return: Count of matches listed.
Dim fld As DAO.Field
Dim lngKt As Long

For Each fld In obj.Fields
'Search the name
If fld.Name Like strText2Match Then
Debug.Print obj.Name & "." & fld.Name
lngKt = lngKt + 1&
'Search the SourceField (for aliased query fields.)
ElseIf fld.SourceField Like strText2Match Then
Debug.Print obj.Name & "." & fld.Name & ".SourceField: " & fld.SourceField
lngKt = lngKt + 1&
'Search the Caption.
ElseIf HasProperty(fld, "Caption") Then
If fld.Properties("Caption") Like strText2Match Then
Debug.Print obj.Name & "." & fld.Name
lngKt = lngKt + 1&
End If
End If
Next
Set fld = Nothing

'Search the Filter and OrderBy properties too.
lngKt = lngKt + FindInProperty(obj, "Filter", strText2Match)
lngKt = lngKt + FindInProperty(obj, "OrderBy", strText2Match)

Exit_Handler:
FindInTableQuery = lngKt
Exit Function

Err_Handler:
MsgBox "Error " & Err.Number & ": " & Err.Description, vbExclamation, "FindInTableQuery"
Resume Exit_Handler
End Function

Private Function FindInFormReport(obj As Object, strText2Match As String) As Long
On Error GoTo Err_Handler
'Purpose: Search for controls where the Name, Control Source, or Caption matches the string.
'Arguments: obj = a reference to the form or report.
' strText2Match is the text to search for, including any wildcards.
'Return: Count of matches listed.
Dim ctl As Control 'Each control on the form/report.
Dim lngKt As Long 'Count of matches.

For Each ctl In obj.Controls
'Search the name
If ctl.Name Like strText2Match Then
Debug.Print obj.Name & "." & ctl.Name & " (" & ControlTypeName(ctl.ControlType) & ")"
lngKt = lngKt + 1&
'LinkMasterFields/LinkChildFields for subform/subreport.
ElseIf ctl.ControlType = acSubform Then
If ctl.LinkMasterFields Like strText2Match Then
Debug.Print obj.Name & "." & ctl.Name & ".LinkMasterFields: " & ctl.LinkMasterFields
lngKt = lngKt + 1&
End If
If ctl.LinkChildFields Like strText2Match Then
Debug.Print obj.Name & "." & ctl.Name & ".LinkChildFields: " & ctl.LinkChildFields
lngKt = lngKt + 1&
End If
'Search the Control Source
ElseIf HasProperty(ctl, "ControlSource") Then
If ctl.ControlSource Like strText2Match Then
Debug.Print obj.Name & "." & ctl.Name & ".ControlSource: " & ctl.ControlSource
lngKt = lngKt + 1&
End If
'Search the caption (less any hotkey.)
ElseIf HasProperty(ctl, "Caption") Then
If ctl.Caption Like Replace(strText2Match, "&", vbNullString) Then
Debug.Print obj.Name & "." & ctl.Name & ".Caption: " & ctl.Caption
lngKt = lngKt + 1&
End If
End If
Next

'Search the Filter and OrderBy properties too.
lngKt = lngKt + FindInProperty(obj, "Filter", strText2Match)
lngKt = lngKt + FindInProperty(obj, "OrderBy", strText2Match)

Exit_Handler:
FindInFormReport = lngKt
Set ctl = Nothing
Exit Function

Err_Handler:
MsgBox "Error " & Err.Number & ": " & Err.Description, vbExclamation, "FindInFormReport"
Resume Exit_Handler
End Function

Private Function FindInProperty(obj As Object, strPropName As String, strText2Match As String) As Long
On Error GoTo Err_Handler
'Purpose: Search the Filter an OrderBy properties of the object for the string.
'Arguments: obj = a reference to TableDef, QueryDef, Form, or Report.
' strPropName = name of property to search, e.g. "Filter" or "OrderBy".
' strText2Match = the text to search for, including any wildcards.
'Return: 1 if found; 0 if not.

If obj.Properties(strPropName) Like strText2Match Then
Debug.Print obj.Name & "." & strPropName & ": " & obj.Properties(strPropName)
FindInProperty = 1&
End If

Exit_Handler:
Exit Function

Err_Handler:
Select Case Err.Number
Case 438&, 3270& 'Property doesn't apply; Property not found.
'do nothing
Case Else
MsgBox "Error " & Err.Number & ": " & Err.Description, vbExclamation, ".FindInProperty"
End Select
Resume Exit_Handler
End Function

Private Function FindInGroupLevel(rpt As Report, strText2Match As String) As Long
On Error GoTo Err_Handler
'Purpose: Search the Control Source of each Group Level of a report.
'Arguments: rpt = a reference to the report.
' strText2Match is the text to search for, including any wildcards.
'Return: Count of matches listed.
'Note: Assumes the report is open.
Dim i As Integer 'Loop controller (group levels.)
Dim lngKt As Long 'Count of matches

Do 'Loop will terminate by error when there are no more group levels.
If rpt.GroupLevel(i).ControlSource Like strText2Match Then
Debug.Print rpt.Name & ".GroupLevel(" & i & "): " & rpt.GroupLevel(i).ControlSource
lngKt = lngKt + 1&
End If
i = i + 1
Loop

Exit_Handler:
FindInGroupLevel = lngKt
Exit Function

Err_Handler:
If Err.Number <> 2464& Then 'No more group levels.
MsgBox "Error " & Err.Number & ": " & Err.Description, vbExclamation, "FindInGroupLevel()"
End If
Resume Exit_Handler
End Function

Public Function ObjectExists(obj As Object, strObjectName As String) As Boolean
'Purpose: Return True if the named object exists.
'Examples: If ObjectExists(CurrentDb.TableDefs, "Table1") Then
' If ObjectExists(CurrentProject.AllForms, "Form1") Then
Dim varDummy As Variant
On Error Resume Next
varDummy = obj.Item(strObjectName).Name
ObjectExists = (Err.Number = 0&)
End Function

Public Function ControlTypeName(lngControlType As AcControlType) As String
On Error GoTo Err_Handler
'Purpose: Return the name of the ControlType.
'Argument: A Long Integer that is one of the acControlType constants.
'Return: A string describing the type of control.
'Note: The ControlType is a Byte, but the constants are Long.
Dim strReturn As String

Select Case lngControlType
Case acBoundObjectFrame: strReturn = "Bound Object Frame"
Case acCheckBox: strReturn = "Check Box"
Case acComboBox: strReturn = "Combo Box"
Case acCommandButton: strReturn = "Command Button"
Case acCustomControl: strReturn = "Custom Control"
Case acImage: strReturn = "Image"
Case acLabel: strReturn = "Label"
Case acLine: strReturn = "Line"
Case acListBox: strReturn = "List Box"
Case acObjectFrame: strReturn = "Object Frame"
Case acOptionButton: strReturn = "Object Button"
Case acOptionGroup: strReturn = "Option Group"
Case acPage: strReturn = "Page (of Tab)"
Case acPageBreak: strReturn = "Page Break"
Case acRectangle: strReturn = "Rectangle"
Case acSubform: strReturn = "Subform/Subrport"
Case acTabCtl: strReturn = "Tab Control"
Case acTextBox: strReturn = "Text Box"
Case acToggleButton: strReturn = "Toggle Button"
Case Else: strReturn = "Unknown: type" & lngControlType
End Select

ControlTypeName = strReturn

Exit_Handler:
Exit Function

Err_Handler:
MsgBox "Error " & Err.Number & ": " & Err.Description, vbExclamation, "ControlTypeName()"
Resume Exit_Handler
End Function

Public Function HasProperty(obj As Object, strPropName As String) As Boolean
'Purpose: Return true if the object has the property.
Dim varDummy As Variant

On Error Resume Next
varDummy = obj.Properties(strPropName)
HasProperty = (Err.Number = 0)
End Function




André Luiz Bernardes
A&A - WORK, DON´T PLAY!
http://al-bernardes.sites.uol.com.br/


✔ VBA Brazil®

✔ VBA Brazil®
brazilsalesforceeffectiveness@gmail.com
Related Posts Plugin for WordPress, Blogger...
diHITT - Notícias