SqlConnection oConnect;
            SqlCommand oCommand;
            string strConnect;
            strConnect = ConfigurationManager.ConnectionStrings["receive.Properties.Settings.newConnection"].ConnectionString;

            oConnect = new SqlConnection(strConnect);

            oCommand = new SqlCommand();

            oCommand.Connection = oConnect;

            oCommand.CommandText = @"SELECT * FROM RECEIVABLES WHERE ISREAD='0'";

            SqlDataAdapter sda = new SqlDataAdapter(oCommand);

            DataSet ds = new DataSet();

            sda.Fill(ds);

            dataGridView3.DataSource = ds.Tables[0].DefaultView;