Connection to database Ms. Access

Option Explicit
Public con As New ADODB.Connection
Public rs As New ADODB.Recordset
Public cmd As New ADODB.Command
Public sql As String

Public Sub Errror()
If Err.Number <> 0 Then MsgBox Err.Description, vbCritical, "Error"
End Sub

Public Sub eksekusi(sql As String)
Set rs = New Recordset
rs.Open sql, con, adOpenDynamic, adLockOptimistic
End Sub


Public Sub konek()
On Error GoTo erroro
Dim strpath As String
strpath = App.Path & "\bbm.mdb"
con = New Connection
con.Open ("Provider = Microsoft.Jet.OLEDB.4.0; Data Source = " & Trim(strpath) & "")
erroro: Errror
End Sub

Public Function Valid(frm As Form, bnan As Boolean) As Integer
On Error GoTo ada
Valid = 0
Dim ctl As Control
For Each ctl In frm.Controls
If TypeOf ctl Is TextBox Then
If bnan Then
If ctl.Text = "" Then
Valid = Valid + 1
ctl.SetFocus
Exit For
End If
Else
ctl.Text = ""
End If
End If
Next
ada: Errror
End Function

Public Sub tampildg(dg As DataGrid, ad As Adodc, query As String)
On Error GoTo ada
Dim i As Integer
With ad
.ConnectionString = con
.RecordSource = query
.Refresh
Set dg.DataSource = ad
.Caption = "Banyaknya Data: " & ad.Recordset.RecordCount
End With
For i = 0 To dg.Columns.Count - 1
dg.Columns(i).Caption = Replace(dg.Columns(i).Caption, "_", " ", 1, Len(dg.Columns(i).Caption), vbTextCompare)
dg.Columns(i).Caption = StrConv(dg.Columns(i).Caption, vbProperCase)
Next
ada: Errror
End Sub