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Connection to Access error

Connection to Access error

Connection to Access error

I am using VS2013 VB and have created several routines. The library project connects to Access (mdb and acceb) just fine. When I move the class to another project I get an error that it can not connect. Why?

My code it:
Public Function Open_Access(ByVal dbname As String, Optional ByVal usrname As String = "", Optional ByVal pwd As String = "", Optional accdbflg As Boolean = False) As Boolean
Dim sConnectString As String
Dim i As Integer

On Error GoTo ERR1

Open_Access = False ' default to failure
AccessDatabaseOpenFlag = False

If dbname = "" Then
Call Display_Message("Access database name not provided.")
Exit Function
End If
If File_Exists(dbname) = False Then ' if no such DB
Call Display_Message("Unable to locate Access database.")
Exit Function
End If

i = InStr(UCase(dbname), ".ACCDB")
If i < 1 Then
sConnectString = "Driver={Microsoft Access Driver (*.mdb)};Dbq=" & dbname
sConnectString = "Provider=Microsoft.ACE.OLEDB.12.0;Persist Security Info=False;Data Source=" & dbname & ";"
End If

If usrname <> "" Then ' if username provided
sConnectString = sConnectString & ";Uid=" & usrname
End If

If pwd <> "" Then ' if password there
sConnectString = sConnectString & ";Pwd=" & pwd
End If

Open_Access = True
AccessDatabaseOpenFlag = True
Exit Function
Call Display_Error_Message("Error opening Access DB")
Exit Function
End Function

RE: Connection to Access error

What is the error message?

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RE: Connection to Access error

Here is the error message.
My code also does of verify that the DB is there first.

Unable to open

Error #-21474672559 was generated by Microsoft OLE Provider for ODBC Drivers
[Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified

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