&nbint.Client.Silverlight and Microsoft.SharePoint.Client.Silverlight.Runtime ), typically in C: \ Program Files \ Common Files \ Microsoft Shared \ Web Server Extensions \ 14 \ TEMPLATE \ LAYOUTS \ ClientBin.
  

 

private void onQuerySucceeded( object sender, ClientRequestSucceededEventArgs args)
{ 
UpdateUIMethod updateUI = DisplayInfo;  
this .Dispatcher.BeginInvoke(updateUI);
}

private void onQueryFailed( object sender, ClientRequestFailedEventArgs args)
{ 
MessageBox.Show( "Request failed. " + args.Message + "\n" + args.StackTrace);
}

private void DisplayInfo()
{ 
collList = oWebsite.Lists; 
listBox1.ItemsSource = listInfo; 
listBox1.DisplayMemberPath = { 
collList = oWebsite.Lists; 
listBox1.ItemsSource = listInfo; 
listBox1.DisplayMemberPath = "Title" ;
}
private delegate void UpdateUIMethod(); 

Example: http://msdn.microsoft.com/en-us/library/ee538971.aspx
Method 2: 
Returns data in the List "General" to a DataGrid using CAML to make filters to return the contents: 

private void LoadGrid()
{
      //Context of the SharePoint Site
      var context = new ClientContext( " http:// [Site]" );
      context.Load(context.Web);
      //return Object List“Geral”
      List projects = context.Web.Lists.GetByTitle( "Geral" );
      context.Load(projects);
      //CAML Query to filter values from the list
     CamlQuery camlQuery = new CamlQuery();
     camlQuery.ViewXml = "<View><Query><Where><Geq><FieldRef Name='ID'/>" +
        "<Value Type='Number'>0</Value></Geq></Where></Query><RowLimit>100</RowLimit></View>" ;
      _projectItems = projects.GetItems(camlQuery);
      context.Load(_projectItems);
      context.ExecuteQueryAsync(OnRequestSucceeded, null );
} 

 

 

if (!TxtTitle.Text.Equals( "" ))
{
           ClientContext clientContext = new ClientContext(TxtUrl.Text);
           Web oWebsite = clientContext.Web;
 
           ListCollection collList = oWebsite.Lists;
 
           oList = clientContext.Web.Lists.GetByTitle( "Anuncios" );
           ListItem oListItem = oList.AddItem( new ListItemCreationInformation());
           oListItem[ "Title" ] = TxtTitle.Text;
           oListItem[ "Body" ] = TxtBody.Text;
           oListItem.Update();
           clientContext.Load(oList,list => list.Title);
           clientContext.ExecuteQueryAsync(onQueryInsertSucceeded, onQueryInsertFailed);
}
else
{ MessageBox.Show( "Empty!!" ); } 

 

SharePoint Silverlight Web Part

The first step is to add our Silverlight project in this case "AccessData.XAP" and add to ouns,sans-serif;font-size:13px;background-color:snow;" />

SharePoint Silverlight Web Part

SharePoint provides toor site in SharePoint and can be a Folder, or even a Document Library in the directory or folder "Hive" where SharePoint is installed in server. In this case I created a Folder within the site in SharePoint. These folders are not visible to end users, provided that the file is not deleted accidentally. 

 

Once added to our solution in Silverlight, accessing our website and added in a default SharePoint Web Part that is "Silverlight Web Part." One of the parameters that is required is the path where you will find our solution in Silverlight. 

 

Once everything is correctly added, will be made available on our website our solution for Silverlight within SharePoint WebPart in being able to work and interact with the content of the Site where you are. 

 

When we are working on Web application environment Fiddler is an essential tool for capturing and validating the traffic on our Web when our Silverligth project is working we can find the transactions through the Client OM, and we find a call to the WCF Web Service "client.svc" and an XML Web Service for communication and transaction operations. 

 

There's another way you can interact with data in SharePoint with Silverlight through the "REST" in WCF with all its potential but that is another article... 

 

References

• Using the Silverlight Object Model: http://msdn.microsoft.com/en-us/library/ee538971.aspx 
• Using the SharePoint Server 2010 Managed Client Object Model: http://msdn.microsoft.com/en-us/library/ee857094.aspx 
• Using the SharePoint Server 2010 Managed Client Object Model with the Open XML SDK 2.0: http://msdn.microsoft.com/en-us/library/ee956524.aspx 
• SharePoint 2010 SDK: SharePoint 2010 Reference: Software Development Kit 
• 4 Create a Silverlight Web Part for SharePoint 2010: http://msdn.microsoft.com/en-us/magazine/ff956224.aspx