Dim objOleDbConnection As OleDbConnection
    Dim objOleDbCommand As OleDbCommand
    Dim objOleDbDataReader As OleDbDataReader
    Dim strSQL As String
    Private Sub btnSearch_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSearch.Click
        If cmbColor.SelectedIndex = -1 Then
            MessageBox.Show("Please select a color", "No Color Selected!")
        ElseIf cmbManufacturer.SelectedIndex = -1 Then
            MessageBox.Show("Please select a manufacturer", "No Manufacturer Selected!")
        Else
            Try
                objOleDbCommand.Connection = objOleDbConnection
                MessageBox.Show("Database has been opened")
                objOleDbCommand.Connection.Open()
                strSQL = "SELECT ProductName FROM ProductName " & _
                         "WHERE Color = cmbColor.Text " & _
                         "AND Manufacturer = cmbManufacturer.Text"
                objOleDbCommand.CommandText = strSQL
                objOleDbDataReader = objOleDbCommand.ExecuteReader
                Do While (objOleDbDataReader.Read())
                    MessageBox.Show(Convert.ToString(objOleDbCommand))
                Loop
                objOleDbDataReader.Close()
                objOleDbConnection.Close()
            Catch er As Exception
            End Try
        End If
    End Sub