title: Setting String as Image Source in C#
body: <p>Well I've looked up several methods to fix this in my Windows Phone 7 app but I can't seem to find anything that works.  What confuses me is that I've done something just like this before with no problem, so I'm not sure why it's not working.  The code causing me the problem is this:<br>
      if (appSettings.Contains("image"))
          myImage.Source = (string)appSettings["image"];
      else
          myImage.Source = "default.jpg";</p>
  
  <p>The error I get is this </p>
  
  <blockquote>
    <p>Cannot implicitly convert type 'string' to 'System.Windows.Media.ImageSource.  </p>
  </blockquote>
  
  <p>The reason this confuses me is because I did this <a href="http://weblogs.asp.net/scottgu/archive/2010/03/18/building-a-windows-phone-7-twitter-application-using-silverlight.aspx" rel="nofollow">Twitter app tutorial</a>, in which you bind the image source directly to a string.  So what can I do to fix this?</p>