Database connection and data saving in SQL Server

I have SQL SERVER database file in Project folder. The same file copy in Debug folder. I attach these two files in SQL Server. File in project folder table contains Null value in all field. But there is data in the file attached from the Debug folder. I created the connection string with the file in Project folder. Actually which database file is the correct file? Try to solve this problem.

The Connection String is

Public Conn As SqlConnection

Public Function getConnect() As SqlConnection

    Conn = New SqlConnection("Data Source=.\SQLEXPRESS;AttachDbFilename=|DataDirectory|\EMP_DB.mdf;Integrated Security=True;Connect Timeout=30;User Instance=True")

    Return Conn

End Function

And this is my code..

 Try
            getConnect()
            Dim query As SqlCommand
            Dim strSQL As String
            strSQL = "INSERT INTO EMPLOYEE (EMP_ID,EMP_NAME,EMP_FNAME,EMP_GENDER,EMP_DOB,EMP_CAST,EMP_DEPART,EMP_DESIG,EMP_DOJ,EMP_SALARY,EMP_PF_ESI,EMP_BRANCH,EMP_CONTACT,EMP_ADDRESS)VALUES(@EMP_ID,@EMP_NAME,@EMP_FNAME,@EMP_GENDER,@EMP_DOB,@EMP_CAST,@EMP_DEPART,@EMP_DESIG,@EMP_DOJ,@EMP_SALARY,@EMP_PF_ESI,@EMP_BRANCH,@EMP_CONTACT,@EMP_ADDRESS)"
            query = New SqlCommand(strSQL, Conn)
            query.Parameters.Add(New SqlParameter("@EMP_ID", TXTEMPID.Text))
            query.Parameters.Add(New SqlParameter("@EMP_NAME", TXTNAME.Text))
            query.Parameters.Add(New SqlParameter("@EMP_FNAME", TXTFNAME.Text))
            query.Parameters.Add(New SqlParameter("@EMP_GENDER", gend))
            query.Parameters.Add(New SqlParameter("@EMP_DOB", DTPEMPDOB.Value.Date))
            query.Parameters.Add(New SqlParameter("@EMP_CAST", TXTCASTE.Text))
            query.Parameters.Add(New SqlParameter("@EMP_DEPART", CMBDEPT.Text))
            query.Parameters.Add(New SqlParameter("@EMP_DESIG", CMBDESIG.Text))
            query.Parameters.Add(New SqlParameter("@EMP_DOJ", DTPEMPDOJ.Value.Date))
            query.Parameters.Add(New SqlParameter("@EMP_SALARY", MTXTSAL.Text))
            query.Parameters.Add(New SqlParameter("@EMP_PF_ESI", MTXTPFESI.Text))
            query.Parameters.Add(New SqlParameter("@EMP_BRANCH", TXTBRANCH.Text))
            query.Parameters.Add(New SqlParameter("@EMP_CONTACT", MTXTCONTACT.Text))
            query.Parameters.Add(New SqlParameter("@EMP_ADDRESS", RTXTADDRESS.Text))
            Conn.Open()
            Dim numAffected = query.ExecuteNonQuery()
            'MessageBox.Show(numAffected)
            Conn.Close()
            If numAffected > 0 Then
                Call getConnect()
                MessageBox.Show("Successfully Added", "Add", MessageBoxButtons.OK, MessageBoxIcon.Information)
                BTNCLEAR.PerformClick()
            Else
                MsgBox("No record was inserted")
            End If
        Catch ex As Exception
            MsgBox("ERROR: " + ex.Message, MsgBoxStyle.Information, "Add")
        End Try
    End If

I change my connection string like this...

Data Source=.\SQLEXPRESS;AttachDbFilename=|DataDirectory|\EMP_DB.mdf;Initial Catalog=EMP_DB;Integrated Security=True;Connect Timeout=30;User Instance=False