Databinding in WPF (C#)

Answer 1

fMay be something like this, create a connection and than read from your access file.

 OleDbConnection conn;
    OleDbCommand comm;
    OleDbDataReader dr;
    conn = new OleDbConnection("Provider = Microsoft.Jet.OLEDB.4.0; Data Source = C:\\db1.mdb");
    comm = new OleDbCommand("Select * from Table1 where loginId =@id and password=@pass",conn);
    comm.Parameters.Add(new OleDbParameter("@id",System.Data.oleDbType.NVarChar,20, "loginID"));
    comm.Parameters.Add(new OleDbParameter("@pass",System.Data.oleDbType.NVarChar,20, "password")); 

    conn.Open();
    dr = comm.ExecuteReader();
    conn.Close();
if(dr.hasrows)
{
//login success
}
else
 //login fail

Than you can authenticate by using dr against the user input. Put this above your commented line.