Create Database Connection Use Module VB NET 2013

This step is Step-4 how to build POS (Point Of Sale) Application using VB NET 2013

Step-1 : Create New Project POS Application Using VB Net 2013
Step-2 : Create Main Menu POS Application VB NET 2013 
Step-3 : Create Database and Table POS Application

Please follow below step
Open your POS Application before

Click Project - Add Module

and then follow below picture

Click Add
and then please place code below

Imports System.Data.OleDb
Module Module1
    Public CONN As OleDbConnection
    Public CMD As OleDbCommand
    Public DS As New DataSet
    Public DA As OleDbDataAdapter
    Public RD As OleDbDataReader
    Public DBlocation As String
    Sub OpenDB()
        DBlocation = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=DBPOS.accdb"
        CONN = New OleDbConnection(DBlocation)
        If CONN.State = ConnectionState.Closed Then
            CONN.Open()
        End If
    End Sub
End Module

Click Save
Please following Step-5 to continue build POS Application using VB NET 2013