C# windows form application with access database

Question

I connected my database file to the visual studio using data source.

   I open data source window and add data source. When add data source it prompted the below message box.

 

I clicked yes button. Then data file is copied to the project directoy.

DataFile 1 -  C:\Users\mypc\Documents\Visual Studio 2010\AutoSpa Xpress\AutoSpa                        Xpress\bin\Debug

DataFile 2 -  C:\Users\mypc\Documents\Visual Studio 2010\AutoSpa Xpress\AutoSpa Xpress

 

Original datafile is located in

   DataFile 1

After I did above operation data file is copied to

    DataFile 2

 

My connection string of app.config is 

   ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source = |DataDirectory|\AutoSpa.mdb"

 

Connenction String name is

   "AutoSpa_Xpress.Properties.Settings.AutoSpaConnectionString"

 

Provider Name

   System.Data.OleDb

 

My Problem is

   When I insert some values using windows form they are inserted into data file ( DataFile 1) , but data file (DataFile 2) not update (There is no new value which i was added). 

   When I re-run my project data load from Data File 2 and DataFile 2 is overwrite on DataFile 1. Values which I was inserted are missing.

 

How to solve this problem?