How Do I Bind The Local Database To My Gridview In C#.Net Windows Form

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C#

C#4.0

i want to bind the local database to datagridview local database does not need the sql database so how to do this i don't knw..
I use this code bt it cant work..

string rr = @"Data Source=F:\Works\WindowsApp\clob\clob\Database12.sdf";
           using (con = new SqlConnection(rr))
           {
               cmd = new SqlCommand(@"SELECT uId, pass FROM users", con);
               //cmd.CommandType = System.Data.CommandType.StoredProcedure;
               //cmd.Parameters.AddWithValue("@date", datePicker.Value);
               //cmd.Parameters.AddWithValue("@roomNumber", cmboRoom.Text);
               con.Open();
               using (SqlDataAdapter sda = new SqlDataAdapter(cmd))
               {
                   using (DataTable dt = new DataTable())
                   {
                       sda.Fill(dt);
                       dataGridView1.DataSource = dt;
                   }
               }