John Mendez

Hey all, I released my silverlight 3 media player on codeplex.  Feel free to check it out and download and use at will.  I will be keeping more updates on documenation on the codeplex site itself instead of here.  No need for content on two places right :)

Update 09-29-2009

I added the admin module to the project now so IT people don't have to worry about editing the XML file. a normal user can manage all videos now.

CodePlex url

http://xliteplayer.codeplex.com/

Page on the XDev site with a quick demo

http://www.xdevsoftware.com/xLitePlayer2Desc.aspx

Silverlight.net community gallery

http://silverlight.net/community/gallerydetail.aspx?cat=sl2&sort=1#vid3159

Feel free to leave comments or suggestions on here or codeplex.

Silverlight silverlight 3

Ok so I'm about half way through the development of the new xLite Player (Silverlight 3 media player) and I wanted to implement the AutoCompleteBox from the Silverlight Toolkit. I checked out the example on the Silverlight Toolkit site, but found it a bit difficult to follow. So this is how I ended up using the AutoCompleteBox for search suggestions. This actually provides search suggestions from an XML file.  Here is the technology involved:

 - Visual Studio 2008
 - Expression Blend 3 Preview
 - Silverlight 3 Beta
 - Silverlight 3 Toolkit
 - WCF

As typical me, here is the code that makes this works. I trimmed out all the rest just to focus on the AutoCompleteBox itself

XAML MARKUP

<input:AutoCompleteBox Height="25" Margin="5,17,5,12" Width="166" x:Name="txtSearchBox" />

XAML.cs CODE BEHIND

public MainPage()
 {
      Loaded += new RoutedEventHandler(MainPage_Loaded);       
 }

 private void MainPage_Loaded(object sender, RoutedEventArgs e)
 {

      txtSearchBox.Populating += new PopulatingEventHandler(txtSearchBox_Populating);

 }

private void txtSearchBox_Populating(object sender, PopulatingEventArgs e)
{
        // Allow us to wait for the response
        e.Cancel = true;

        //only query web service if more than 3 chars
        if (txtSearchBox.Text.Length >= 3)
        {
            // Create a request for suggestion
            proxy.GetSuggestionsCompleted += new EventHandler<xLitePlayer2.xLitePlayerSvc.GetSuggestionsCompletedEventArgs>(proxy_GetSuggestionsCompleted);
            proxy.GetSuggestionsAsync(txtSearchBox.Text);
        }
}

private void proxy_GetSuggestionsCompleted(object sender, xLitePlayer2.xLitePlayerSvc.GetSuggestionsCompletedEventArgs e)
{

    List<XElement> searchResults = new List<XElement>(e.Result);
    List<string> data = new List<string>();

    foreach (XElement ele in searchResults)
    {
       data.Add(ele.Element("mediaName").Value);
    }

    txtSearchBox.ItemsSource = data;
    txtSearchBox.PopulateComplete();
} 

WCF SERVICE METHOD

public List<XElement> GetSuggestions(string prefixText)
{
    DataSet dsMedia = new DataSet();
    dsMedia.ReadXml(System.Configuration.ConfigurationManager.AppSettings["xLitePlayerDataPath"].ToString());

    XDocument xDoc = XDocument.Parse(dsMedia.GetXml());

    var results = from n in xDoc.Descendants("mediaPath")
                  where (bool)n.Element("mediaName").Value.ToLower().Contains(prefixText.ToLower())
                  select n;

    return results.ToList();

}

Now I'll probably end up changing this later but this is what was working for me last night.  Well I hope this simple example helps those out just learning about the AutoCompleteBox like I just did.

Silverlight silverlight 3