Web method that returning list getting as array

Question

My web methods are returning some values as list, but while calling these web methods getting it as array objects.How can I get it same as list.My web method is similar like this

        [WebMethod]
        public List<ReturnList> GetReturnList()
        {
           List<ReturnList> ReturnList=new List<ReturnList>();
        //Calcuations
            return ReturnList;
        }

I haven't used "web service", but there may be a configuration that you need to set the on client side to get it as a list not array. — Lews Therin
– Lews Therin, Commented Oct 22, 2012 at 10:25
I couldn't find out such a configuration,Do you have any idea about this? — Rn.
– Rn., Commented Oct 22, 2012 at 10:26
List<T> is a .Net structure. Think, when someone wants to consume your service in Java or on some other platform. — L.B
– L.B, Commented Oct 22, 2012 at 10:38
right click your service reference , there was an option to configure this thing. I do not know where it was exactly but it was somewhere on the client. — muhammad kashif
– muhammad kashif, Commented Oct 22, 2012 at 10:50

andy · Accepted Answer · 2012-10-22 11:03:10Z

5

Your web method definition is not lacking anything. Lists will be converted to arrays because of SOAP and how it is defined and structured. If you really need a list when consuming the method, convert the array back into a List where you're consuming it. You could also make a web service wrapper where you could wrap that web method and return a List<> instead of an array. The method body would just call the web service and convert the array to List<> and return it.

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answered Oct 22, 2012 at 11:03

andy

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Murugesh · Accepted Answer · 2012-10-22 11:47:50Z

3

The List is more of a language specific data structure. All the language specific data types will be mapped to language neutral data types which is XML data types.

When request/response is happening the XML mapping will occur, thus by platform and language interoperability has achieved.

The reason that the List kind of data types are not getting as the same data type,
  because there is no equivalent XML data type available.

So, you can have a utility to convert the List to array or vice versa to fulfill your requirement

answered Oct 22, 2012 at 11:47

Murugesh

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Comments

Ramchandra Dubal · Accepted Answer · 2015-10-20 12:36:08Z

  [WebMethod]
    public static Details[] GetData()
    {
        DataSet dsDetails = new DataSet();
        List<Details> details = new List<Details>();
        try
        {
            Database db = DatabaseFactory.CreateDatabase("String");
            DbCommand dbCommand = db.GetStoredProcCommand("GetDetails");
            
            dsDetails = (DataSet)db.ExecuteDataSet(dbCommand);
            foreach (DataRow dtrow in dsDetails.Tables[0].Rows)
            {
                Details report = new Details();
                report.ID = Convert.ToInt32(dtrow["ID"].ToString());
                report.ReferenceID = Convert.ToInt32(dtrow["ReferenceID"].ToString());
                report.ProductID = dtrow["Name"].ToString();
                
                details.Add(report);
            }
        }
        catch (Exception)
        {
        }
        finally
        {

        }

        return details.ToArray();
    }

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