Professional SharePoint® 2010 Branding and User Interface Design

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CHAPTER 14 SILVERLIGHT AND SHAREPOINT INTEGRATION

using System.Windows.Resources;

namespace Contacts

{

public class LoadClientOM

{

private Action action;

public LoadClientOM(Action action)

{

this.action = action;

WebClient client = new WebClient();

client.OpenReadCompleted +=

new OpenReadCompletedEventHandler(ReadCompleted);

client.OpenReadAsync

(new Uri(“/_layouts/clientbin/Microsoft.SharePoint.Client.xap”,

UriKind.Relative));

}

void ReadCompleted(object sender, OpenReadCompletedEventArgs e)

{

Stream assemblyStream;

AssemblyPart assemblyPart;

assemblyStream = Application.GetResourceStream(new

StreamResourceInfo(e.Result, “application/binary”),

new Uri(“Microsoft.SharePoint.Client.Silverlight.Runtime.dll”,

UriKind.Relative)).Stream;

assemblyPart = new AssemblyPart();

Assembly b = assemblyPart.Load(assemblyStream);

assemblyStream = Application.GetResourceStream(new

StreamResourceInfo(e.Result, “application/binary”),

new Uri(“Microsoft.SharePoint.Client.Silverlight.dll”, UriKind.Relative)).Stream;

assemblyPart = new AssemblyPart();

Assembly a = assemblyPart.Load(assemblyStream);

//Call back on the passed delegate

if (action != null)

{

action();

}

}

}

}

The LoadClientOM constructor takes one parameter, the callback method to call after the

assemblies have been loaded. Next, the constructor uses the

WebClient class to download the

Microsoft.SharePoint.Client.xap asynchronously ...