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---+ Simple Example Showing How To Browse a Collection Generated From Virtuoso Data Using <nowiki>PivotViewer</nowiki>. [[http://www.silverlight.net/learn/pivotviewer/][PivotViewer]] is a new [[http://www.silverlight.net/][Silverlight]] control for visualizing and interacting with collections of data. The data collection must be a group of entities of the same type, described using the [[http://www.silverlight.net/learn/pivotviewer/collection-xml-schema/][Collection XML schema]], CXML. Virtuoso data will soon be easily exposed as a pivot collection using the upcoming FacetServiceToPivotBridge. This document shows how to set up a very simple Silverlight application that makes such collections available on the Web. You can also play with [[http://ods-qa.openlinksw.com/pivotviewer/pivot/][an existing sample instance]]. %TOC% ---++ Prerequisites * <nowiki>VisualStudio</nowiki> 2010 and Silverlight 4 * The address of the collections * Virtuoso server to host the Silverlight web app ---++ Steps ---+++ Step 1: Create the application. In <nop>VisualStudio, reate a new <b>Silverlight Application</b> called <b><nowiki>PivotTest</nowiki></b>. 1 In the <b>New Silverlight Application</b> dialog box check the <b>Host the Silverlight application in a new Web site</b> box and ensure that the <b>Silverlight Version</b> is <b>4</b> or higher. %BR%%BR%<img src="%ATTACHURLPATH%/NewApp.png" style="wikiautogen"/>%BR%%BR% 1 Click <b>OK</b>. ---+++ Step 2: Add controls. This step adds a text box and a <nowiki>PivotViewer</nowiki> to the application. 1 In <code><nop>MainPage.xaml</code> add the pivot namespace, <verbatim> xmlns:pivot="clr-namespace:System.Windows.Pivot;assembly=System.Windows.Pivot" </verbatim> 1 In the same file, replace &mdash; <verbatim> <Grid x:Name="LayoutRoot" Background="White"> </Grid> </verbatim> &mdash; with &mdash; <verbatim> <Grid x:Name="LayoutRoot"> <Grid.RowDefinitions> <RowDefinition Height="40"/> <RowDefinition Height="40"/> <RowDefinition Height="*"/> </Grid.RowDefinitions> <Grid.ColumnDefinitions> <ColumnDefinition Width="600"/> <ColumnDefinition Width="*"/> </Grid.ColumnDefinitions> <TextBlock Text="Pivot Collection Viewer" Visibility="Visible" FontSize="20" Grid.Row="0" Grid.Column="0" HorizontalAlignment="Left" VerticalAlignment="Center"/> <TextBox Name="urlBox" Grid.Row="1" Width="500" Height="30" Text="{Binding Mode=OneWay}" KeyDown="urlBox_KeyDown" Grid.Column="0" ></TextBox> <TextBlock Text="Type in a collection URL" Grid.Row="1" Grid.Column="1" VerticalAlignment="Bottom"></TextBlock> <Border x:Name="ContentBorder" Grid.Row="2" Grid.Column="0" Grid.ColumnSpan="2"> <!-- The PivotViewer control --> <pivot:PivotViewer x:Name="PivotViewer" Visibility="Collapsed" /> </Border> </Grid> </verbatim> ---+++ Step 3: Add the event handler. Once the URL of a collection has been typed into the text box, the <nowiki>PivotViewer</nowiki> opens the collection and is made visible. This is done using the <code><nowiki>urlBox_KeyDown</nowiki></code> event handler. We need to add this to the file, <code><nop>MainPage.xaml.cs</code>. 1 Open <code><nop>MainPage.xaml.cs</code> and add references to: * <code>System.Windows.Pivot</code> * <code>System.Windows.Pivot.Model</code> * <code>System.Windows.Pivot.SharedUI</code> * <code>System.Windows.Pivot.StringResources</code> * <code>System.Windows.Pivot.Utilities</code> 1 Add <code>using System.Windows.Pivot;</code> to the "using" block. 1 Add the event handler: <verbatim> private void urlBox_KeyDown(object sender, KeyEventArgs e) { if (e.Key == Key.Enter) PivotViewer.LoadCollection(urlBox.Text, string.Empty); PivotViewer.Visibility = Visibility.Visible; } </verbatim> 1 Build and run the code using the development server. You should see a web page that looks like this: %BR%%BR%<img src="%ATTACHURLPATH%/Page1.png" style="wikiautogen"/>%BR%%BR% 1 Type the URL of a collection, e.g., <code>[[http://content.getpivot.com/Collections/dogbreeds/dogbreeds.cxml][http://content.getpivot.com/Collections/dogbreeds/dogbreeds.cxml]]</code> into the text box. 1 The collection will be opened in the <nowiki>PivotViewer</nowiki> control. %BR%%BR%<img src="%ATTACHURLPATH%/Page2.png" style="wikiautogen"/>%BR%%BR% ---+++ Step 4: Save the application. Publish the project from <nop>VisualStudio to your local filesystem &mdash; 1. Right click on <code><nop>PivotTest.Web</code> in the <b>Solution Explorer</b>. 1. Select <b>Publish</b> 1. Select <b>File System</b> for the Publish Method, and set the <b>Target Location</b>. 1. Click <b>OK</b>. ---+++ Step 5: Set up hosting on Virtuoso. ---++++ You can host the project directly from the filesystem ... 1. Copy the content of the Target Location (Step #4, above) to a new folder called <nowiki>PivotTest</nowiki> in the <b><code>$VIRTUOSO_DIR/vsp/</code></b> folder of your Virtuoso Server instance. 1. Open the Virtuoso Conductor and click to the <b>Web Application Server</b> tab, and then the <b>Virtuoso Domains and Directories</b> sub-tab. 1. Add a new directory to the default web site. 1. Select <b>None</b> on the first page of the wizard. 1. On the second page set <b>Path</b> to <b><code>/pivottest</code></b> and <b>Physical Path</b> to the new folder you have just created under <b><code>$VIRTUOSO_DIR/vsp/</code></b>. 1. Set <b>Default Page</b> to <b><code><nop>PivotTestTestPage.html</code></b>. 1. Click <b>Save changes</b>. ---++++ or from Virtuoso's DAV repository 1. Open the WebDAV browser on your Virtuoso server. 1. Create a new WebDAV folder and upload the content of the Target Location (Step #4, above) into it. 1. Open the conductor and select the <b>Web Application Server</b> followed by the <b>Virtuoso Domains and Directories</b> tab. 1. Add a new directory to the default web site. 1. Select <b>None</b> on the first page of the wizard. 1. On the second page set <b>Path</b> to the name of the new WebDAV folder and check the <b>Physical path is a WebDAV repository</b> check box. 1. Set the <b>Physical Path</b> to <b><code>/DAV/<i>&lt;new WebDAV folder name&gt;</i></code></b>. 1. Set <b>Default Page</b> to <b><code><nop>PivotTestTestPage.html</code></b>. 1. Check the <b>Override exec permissions in WebDAV</b> checkbox. 1. Click <b>Save changes</b>. Now load <code><nowiki>http://<i>&lt;your server instance&gt;</i>/pivottest</nowiki></code> in your Web browser, and you should see the page you have just created. <i><b>A note on <code>CrossDomainPolicy.xml</code></b></i><br /> <i>The [[http://msdn.microsoft.com/en-us/library/cc645032%28VS.95%29.aspx][Silverlight security model]] only allows a Silverlight application to make HTTP web requests to the domain that originally served the application. Cross domain access to collections on another server would require either a <code>clientaccesspolicy.xml</code> or <code>crossdomain.xml</code> file allowing access from the site serving the Silverlight application.</i> ---++ Live Demo Links * [[http://ods-qa.openlinksw.com/pivotviewer/pivot/][Live Edition of This Pivotviewer Application]] * <a href="http://ods-qa.openlinksw.com/pivotviewer/pivot/?=http://content.getpivot.com/Collections/worldleaders/worldleaders.cxml#$facet0$=Age&$view$=2">World Leaders By Age</a> -- demonstrates Pivotviewer URL using this example * [[http://www.getpivot.com/collections/][Microsoft's Pivot Collection Gallery]] -- cut and paste links into this example * [[http://delicious.com/kidehen/pivot_collection][Kingsley Idehen's Pivot Collection Gallery]] -- cut and paste links into this example ---++ Related * [[http://www.silverlight.net/learn/pivotviewer/][PivotViewer documentation]] * [[http://getpivot.com/developer-info/api/html/N_System_Windows_Pivot.htm][System.Windows.Pivot namespace documentation]] * [[http://pauthor.codeplex.com/][Pauthor]] - a command line tool for converting Pivot collections between a variety of formats and a C# library that allows you to build and modify collections in memory, as well as read and write them in a variety of formats.

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