Consuming data from SQL

[Daniel]

Hi can you please tell me if the following approach the best for consuming the data from SQL utilizing WebService. 
The following code is working correctly. However I need to know if I'm designing dataSource correctly. At this stage I'm only intending to read the data.

DataViewModel

public class LedgerViewModel

{

    public int? lindex { get; set; }

    public int? linvoice { get; set; }

    public string lperiod { get; set; }

    public decimal? lamount { get; set; }

}

WebService

[WebMethod(Description = "Gets ledger info")]

       public List<LedgerViewModel> Read()

       {

            

           using (var db = new LedgerConnection())

           {

               return db.ledgers.Where(x => x.lmatter == "2007714")

                   .Select(l => new LedgerViewModel

                   {

                       lindex = l.lindex,

                       linvoice = l.linvoice,

                       lamount = l.lamount,

                       lperiod = l.lperiod

                   }).ToList();

           }

       }

Sample WebService Output

<ArrayOfLedgerViewModel>

  <LedgerViewModel>

    <lindex>698567</lindex>

    <linvoice>871181</linvoice>

    <lperiod>0511</lperiod>

    <lamount>0.0000</lamount>

  </LedgerViewModel>

  <LedgerViewModel>

    <lindex>698568</lindex>

    <linvoice>871181</linvoice>

    <lperiod>0511</lperiod>

    <lamount>0.0000</lamount>

  </LedgerViewModel>

</ArrayOfLedgerViewModel>

Kendo UI dataSource

dataSource: {

      transport: { }

          read: {

              url: "GetLedger.asmx/Read",

              contentType: "application/json; charset=utf-8",

              type: "POST"

          }

      },

      schema: {

          type: "xml",

          data: "/ArrayOfLedgerViewModel/LedgerViewModel",

          model: {

              fields: {

                  linvoice: "linvoice/text()",

                  lperiod: "lperiod/text()",

                  lamount: "lamount/text()"

              }

          }

      },

        sort: {

            field: "lperiod",

            dir: "asc"

        }

    }

[Daniel]

Anyone ?