Silverlight

Microsoft Silverlight 4 Beta Client for Facebook

Max Paulousky — Mon, 15 Feb 2010 21:13:03 GMT

Microsoft has announced cool silverlight application. There are two piece of news. A good one - this application promotes all Silverlight 4 features like working with web cameras, notification messages, drag & drop etc. A bad one – Microsoft has not provided source code. Moreover, the binaries are obfuscated.

Sources probably will not be provided at all.

Tagged: Silverlight 4 , Facebook , Microsoft

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How to get Xml InnerText in a Silverlight application – 2

Max Paulousky — Mon, 15 Feb 2010 19:40:05 GMT

There is an easier way to remove all xml tags from the document – regular expressions:

     Regex.Replace(text, @"<\/?[^>]*\/?>", string.Empty); 

Tagged: Silverlight , Xml , InnerText , Regular Expressions

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Performance of Visual Studio 2010 Beta 2

Max Paulousky — Sun, 31 Jan 2010 19:48:38 GMT

The performance of my instance of VS2010 beta 2 was not well. Especially, start of debugging process for silverlight applications was not fast enough. Loading of symbols files (to enable debugging) was taking about two-three minutes. BTW, there are a lot of complains on performance in beta 2. The situation was the same for silverlight 3 and 4 applications.

The performance issue has been solved after installing MS Expression Blend Preview for .Net 4. The symbols loading time is almost the same as for VS2008.

I am absolutely sure, Microsoft will improve performance in the release.

Tagged: Silverlight , Visual Studio 2010 , Blend 4 , Performance

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How to get Xml InnerText in a Silverlight application

Max Paulousky — Sat, 30 Jan 2010 13:07:37 GMT

The Silverlight framework is restricted in comparison with .Net framework. It does not provide the XmlDocument class, that has the InnerText property. Silverlight applications should use XDocument instead of XmlDocument. Following code is an extension method for the XNode class that implements InnerText functionality.

     public static string InnerText(this XNode xNode)

    {

      bool isContainer = xNode is XContainer;

      if (!isContainer)

      {

        switch (xNode.NodeType)

        {

          case XmlNodeType.Text:

          case XmlNodeType.CDATA:

          case XmlNodeType.Whitespace:

          case XmlNodeType.SignificantWhitespace:

            return xNode.ToString();

          default:

            return string.Empty;

        }

      }

      else

      {

        XContainer xContainer = (XContainer)xNode;

        StringBuilder sb = new StringBuilder();

        for (XNode node = xContainer.FirstNode; node != null; node = node.NextNode)

          sb.Append(node.InnerText());

        return sb.ToString();

      }

    }

XContainer is a type of xml nodes that contain child nodes and they should be processed recursively.

Tagged: Silverlight , Xml , XDocument , XNode , InnerText

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