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DlookUp Run Time Error 3464

DlookUp Run Time Error 3464

DlookUp Run Time Error 3464

Hello, trying to understand what I am doing wrong. I have a DLookup to search the table for duplicate records before update, but it keeps producing an error. Any help would be appreciated.

Private Sub DOB_LostFocus()
If (Not IsNull(DLookup("[LastName]", _
"tbl_Client", "[LastName] ='" _
& Me!LastName & "'"))) Then
If (Not IsNull(DLookup("[FirstName]", _
"tbl_Client", "[FirstName] ='" _
& Me!FirstName & "'"))) Then
If (Not IsNull(DLookup("[DOB]", _
"tbl_Client", "[DOB] ='" _
& Me!DOB & "'"))) Then
MsgBox "Name has already been entered in the database."
Cancel = True
Dim strDocName As String
strDocName = "rpt_ClientSearch"
DoCmd.OpenReport strDocName, acViewReport

End If
End If
End If
End Sub

RE: DlookUp Run Time Error 3464

Thank you PHV

That worked... :)

Just for my understanding the ' is for text and the # is for numbers?

RE: DlookUp Run Time Error 3464

Thank you.

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