Open the ADO.Net Data Service project in

Visual Studio

In the

Solution Explorer

right click on the RDFWebDemo solution and add a new Project.

In the

Add New Project

dialog select

Silverlight Application

and click

OK

. This will open the

Add Silverlight Application

dialog.

Figure 2.167. Add Silverlight Application

Select

Link this Silverlight Control into an existing Web Site

and make sure the Web Site selected is RDFWebDemo. Select

Add a test page that references the application

and

Make it the start page

.

Figure 2.168. Add a test page

In Solution Explorer, select RDFWebDemo, open the Project menu and select Properties.

Select the

Web

tab, and select

Specific Page

in the

Start Action

section. Click on the ellipsis and select SilverlightApplication1TestPage.html as the start page.

Add a reference to the data service. In the

Solution Explorer

right click on SilverlightApplication1 and select

Add Service Reference

In the

Add Service Reference

dialog click the

Discover

button. Your ADO.Net Data Service should appear in the Address box and the Services box.

Select the service and click

OK

. ServiceReference1 will now be added to the ServiceReferences.

Open page.xaml.cs and add references to the service and to the System.Data.Services.Client assembly by adding the following using statements at the top of the file:

using System.Data.Services.Client;
using SilverlightApplication1.ServiceReference1;

We need at create a data service context to reference the data from the service and to load data from the view, sparqlview, exposed by the service. Add the following lines to the page constructor after InitializeComponent()

DataServiceContext svcCtx = new DataServiceContext(new Uri("WebDataService1.svc", UriKind.Relative));
svcCtx.BeginExecute<sparqlview>(new Uri("sparqlview", UriKind.Relative), loadSCallback, svcCtx);

Add the loadSCallback method to the page class. The method loads the data from sparqlview and puts it in a List. This List populates a list box on the page.

private void loadSCallback(IAsyncResult asyncResult)
{   List<Uri> uList = new List<Uri>();
    DataServiceContext ctx = asyncResult.AsyncState as DataServiceContext;
    foreach (sparqlview sv in ctx.EndExecute<sparqlview>(asyncResult))
     uList.Add(new Uri(sv.s));
    listBox1.DataContext = uList;
}

Add the list box to the page. In the

Solution Explorer

double click on page.xaml to open it in the editor. Add the following code between the <grid> and </grid> tags.

<ListBox x:Name="listBox1"
    HorizontalAlignment="Stretch"
    Margin="25,8,26,-78" Grid.RowSpan="1"
    Grid.Row="0" VerticalAlignment="Stretch"
    ItemsSource="{Binding Mode=OneWay}" >
    <ListBox.ItemTemplate>
        <DataTemplate>
            <StackPanel x:Name="DisplayListData"
             Orientation="Horizontal"
             VerticalAlignment="Bottom"
             Margin="5" >
                <HyperlinkButton
                 Content ="{Binding}"
                 NavigateUri="{Binding}"
                 Margin="5,0,0,0"
                 VerticalAlignment="Bottom"
                 HorizontalAlignment="Left"
                 FontSize="12">
                </HyperlinkButton>
            </StackPanel>
        </DataTemplate>
    </ListBox.ItemTemplate>
</ListBox>

Build the Silverlight application and launch without debugging using

Ctrl F5

. This will launch the browser and open SilverlightApplication1TestPage.aspx.

Figure 2.169. SilverlightApplication1TestPage.aspx