Using webservices in Silverlight Control RSS

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  Hema123

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  Using webservices in Silverlight Control

  Nov 24, 2008 09:25 AM | LINK

  Hi,

  i have a list in my sharepoint site. now i want to retrieve the data from that List and pass it to silverlight application. for that i want to using Sharepoint WebServices( List.asmx).

  Can anyone tell me how to use sharepoint web services in silverlight application.

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  davidezordan

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  Re: Using webservices in Silverlight Control

  Nov 24, 2008 12:00 PM | LINK

  Hi,

  here http://silverlight.net/forums/p/26453/91694.aspx you can find more information.

  Have a nice day,

  Thanks, Davide
  
  Silverlight MVP
  
  Blog Twitter Silverlight Experts
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  Hema123

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  Re: Re: Using webservices in Silverlight Control

  Nov 25, 2008 05:49 AM | LINK

  "GetListItemsCompleted" is not fired in that code

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  spiderman110

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  Re: Re: Re: Using webservices in Silverlight Control

  Nov 25, 2008 07:15 AM | LINK

  Hi,Hema123

  First, you should create your web service method.

  Update your web service and then you could get the event of it.
  

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  hiteshbhagwat

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  Re: Using webservices in Silverlight Control

  Nov 25, 2008 08:37 AM | LINK

  Hi,

  For taking data from sharepoint list you have to follow below steps

  1)Take service reffernce of your list.asmx
  2)Paste the crossdomainplicy file at root folder of your sharepoint website.
  3)Configure u r IIS MIME Type as .xap & application/x-silverlight-app xap.
  4)then craete the object of your websevice client ie.ListSoapClient.Create GetListItemsCompleted handeler.Then call GetListItemsAsync("ListName", null, null, null, null, null, string.Empty).

  Code for calling webservice & collecting data in list format.Where Barrier is class which contain propetries related to your list columns.

  public List<Barrier> BarrierData;

  public Page()

  {

  InitializeComponent();

  BarrierDataService.ListsSoapClient web = new eSENSE_BarChart.BarrierDataService.ListsSoapClient();

  web.GetListItemsCompleted += new EventHandler<eSENSE_BarChart.BarrierDataService.GetListItemsCompletedEventArgs>(web_GetListItemsCompleted);

  web.GetListItemsAsync("My Barriers", null, null, null, null, null, string.Empty);

   

  }

  void web_GetListItemsCompleted(object sender, eSENSE_BarChart.BarrierDataService.GetListItemsCompletedEventArgs e)

  {

  XDocument lobjDocument = XDocument.Parse(e.Result.ToString());

  XNamespace lobjNamespace = "#RowsetSchema";

  var Result = from view1 in lobjDocument.Descendants(lobjNamespace + "row")

  select new Barrier

  {

  NoIncident = (Double)view1.Attribute("ows_No_x002e__x0020_of_x0020_Inciden"),<---- Intenal sharepoint name for your list column

  BarrierTagNo = (string)view1.Attribute("ows_Barrier_x0020_Tag_x0020_No_x002e"),<---- Intenal sharepoint name for your list column

  };

  BarrierData = Result.ToList<Barrier>();

  }

   

   

   

  Thanks & Regards
  Hitesh
  
  If this answer your que plz mark as answer
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  Hema123

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  Re: Re: Using webservices in Silverlight Control

  Nov 25, 2008 10:54 AM | LINK

  Can u explain me about 2nd step. from where could i get the file?

   

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  spiderman110

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  Re: Re: Re: Using webservices in Silverlight Control

  Nov 25, 2008 10:57 AM | LINK

   Well, I can paste it here.The file is named clientaccesspolicy.xml.
  

   <?xml version="1.0" encoding="utf-8"?>
  <access-policy>
    <cross-domain-access>
      <policy>
        <allow-from http-request-headers="*">
          <domain uri="*"/>
        </allow-from>
        <grant-to>
          <resource path="/" include-subpaths="true"/>
        </grant-to>
      </policy>
    </cross-domain-access>
  </access-policy>

   
  

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  Hema123

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  Re: Re: Re: Re: Using webservices in Silverlight Control

  Nov 25, 2008 11:42 AM | LINK

  thank u. but can u plz explain me this part of code?

   

  XDocument lobjDocument = XDocument.Parse(e.Result.ToString());

  XNamespace lobjNamespace = "#RowsetSchema";

  var Result = from view1 in lobjDocument.Descendants(lobjNamespace + "row")

  select new Barrier

  {

  NoIncident = (Double)view1.Attribute("ows_No_x002e__x0020_of_x0020_Inciden"),<---- Intenal sharepoint name for your list column

  BarrierTagNo = (string)view1.Attribute("ows_Barrier_x0020_Tag_x0020_No_x002e"),<---- Intenal sharepoint name for your list column

  };

  BarrierData = Result.ToList<Barrier>();

   

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  Hema123

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  Re: Re: Re: Re: Re: Using webservices in Silverlight Control

  Nov 25, 2008 12:24 PM | LINK

  Hi,

  I have created a list in my sharepoint site. it consists of 4 columns.

  Title,Body,ExpiryDate,DisplayDate

  I am passing the ListName , ViewName to Silverlight application.

  By using GetListItemsAsync() and GetListItemsCompleted how can i retrieve the data from that list.

   

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  hiteshbhagwat

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  Re: Re: Re: Re: Re: Using webservices in Silverlight Control

  Nov 26, 2008 03:30 AM | LINK

  As data comes in xml format from list.asmx ,we have to convert that xml data in ti list format.That all code is LINQ code for retriving data from xml in to List of type Barrier.where Barrier is my property class ie. in your case your barrier class will as follow

  public class Barrier
  {
          string _Title=string.Empty;
          string _Body=string.Empty;
          DateTime _ExpiryDate=null;
          DateTime _DisplayDate=null;

         public string Title
         {
                 get
                 {
                        return this.__Title;
                 }
                set
               {
                       this.__Title= value;
               }
         }

           public string Body
         {
                 get
                 {
                        return this.__Body;
                 }
                set
               {
                       this.__Body= value;
               }
         }

          public DateTime ExpiryDate
         {
                 get
                 {
                        return this.__ExpiryDate;
                 }
                set
               {
                       this.__ExpiryDate= value;
               }
         }

          public DateTime DisplayDate
         {
                 get
                 {
                        return this.__DisplayDate;
                 }
                set
               {
                       this.__DisplayDate= value;
               }
         }

  }

   after in completed event handler

  XDocument lobjDocument = XDocument.Parse(e.Result.ToString());<------ This staement parse u r xml in to XDocument

  XNamespace lobjNamespace = "#RowsetSchema";<--- This is your xml namespace in u r xml returned by webservice

  where below staement is your Linq query which retrives data from u r xml.

  var Result = from view1 in lobjDocument.Descendants(lobjNamespace + "row")

  select new Barrier

  {

  Title= (string)view1.Attribute("ows_Title"),<--- internal name for sharepoint list colmn

  Body= (string)view1.Attribute("ows_Body")

  ExpiryDate= (DateTime )view1.Attribute("ows_ExpiryDate"),

  DisplayDate= (DateTime )view1.Attribute("ows_DisplayDate")

  };

  convert this  var in  to list of type barrier.

  If you want see the internal name of your sharepoint list column place breakpoint in completed event handler & check the value of lobjDocument.

  Thanks & Regards
  Hitesh
  
  If this answer your que plz mark as answer