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Sunday, June 24, 2012

Ex20: VBA - Convert numeric results using DAO

Converts the numeric results of DAO fieldtype to text using DAO in VBA

Option Compare Database
Option Explicit

'Constants for examining how a field is indexed.
Private Const intcIndexNone As Integer = 0
Private Const intcIndexGeneral As Integer = 1
Private Const intcIndexUnique As Integer = 3
Private Const intcIndexPrimary As Integer = 7


Public Function FieldTypeName(fld As DAO.Field)
'Purpose: Converts the numeric results of DAO fieldtype to text.
'Note: fld.Type is Integer, but the constants are Long.
Dim strReturn As String 'Name to return

Select Case CLng(fld.Type)
Case dbBoolean: strReturn = "Yes/No" ' 1
Case dbByte: strReturn = "Byte" ' 2
Case dbInteger: strReturn = "Integer" ' 3
Case dbLong ' 4
If (fld.Attributes And dbAutoIncrField) = 0& Then
strReturn = "Long Integer"
Else
strReturn = "AutoNumber"
End If
Case dbCurrency: strReturn = "Currency" ' 5
Case dbSingle: strReturn = "Single" ' 6
Case dbDouble: strReturn = "Double" ' 7
Case dbDate: strReturn = "Date/Time" ' 8
Case dbBinary: strReturn = "Binary" ' 9 (no interface)
Case dbText '10
If (fld.Attributes And dbFixedField) = 0& Then
strReturn = "Text"
Else
strReturn = "Text (fixed width)"
End If
Case dbLongBinary: strReturn = "OLE Object" '11
Case dbMemo '12
If (fld.Attributes And dbHyperlinkField) = 0& Then
strReturn = "Memo"
Else
strReturn = "Hyperlink"
End If
Case dbGUID: strReturn = "GUID" '15

'Attached tables only: cannot create these in JET.
Case dbBigInt: strReturn = "Big Integer" '16
Case dbVarBinary: strReturn = "VarBinary" '17
Case dbChar: strReturn = "Char" '18
Case dbNumeric: strReturn = "Numeric" '19
Case dbDecimal: strReturn = "Decimal" '20
Case dbFloat: strReturn = "Float" '21
Case dbTime: strReturn = "Time" '22
Case dbTimeStamp: strReturn = "Time Stamp" '23

'Constants for complex types don't work prior to Access 2007.
Case 101&: strReturn = "Attachment" 'dbAttachment
Case 102&: strReturn = "Complex Byte" 'dbComplexByte
Case 103&: strReturn = "Complex Integer" 'dbComplexInteger
Case 104&: strReturn = "Complex Long" 'dbComplexLong
Case 105&: strReturn = "Complex Single" 'dbComplexSingle
Case 106&: strReturn = "Complex Double" 'dbComplexDouble
Case 107&: strReturn = "Complex GUID" 'dbComplexGUID
Case 108&: strReturn = "Complex Decimal" 'dbComplexDecimal
Case 109&: strReturn = "Complex Text" 'dbComplexText
Case Else: strReturn = "Field type " & fld.Type & " unknown"
End Select

FieldTypeName = strReturn
End Function



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