title: Invalid Credentials for bing maps in wpf application
body: <p>Impossible to display the map. I still have a error message:
  <em>"Invalid Credentials. Sign up for a developer account at: <a href="http://www.microsoft.com/maps/developers" rel="nofollow">http://www.microsoft.com/maps/developers</a>"</em></p>
  
  <p>However, I created a account correctly and obtained a valid key:</p>
  
  <ul>
  <li>Application name: Geography   </li>
  <li>Key: <em>*My key*</em> </li>
  <li>Application Url: </li>
  <li>Key type: Basic / Dev/Test </li>
  <li>Created date: 08/12/2015 </li>
  <li>Expiration date: None</li>
  </ul>
  
  <p>My xaml code:</p>
  
  <pre><code>&lt;Window x:Class="Geography.MainWindow"
          xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
          xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
          xmlns:m="clr-namespace:Microsoft.Maps.MapControl.WPF;assembly=Microsoft.Maps.MapControl.WPF"
          Title="MainWindow" Height="350" Width="525"&gt;
      &lt;Grid&gt;
          &lt;m:Map CredentialsProvider="*My key*"&gt;
          &lt;/m:Map&gt;
      &lt;/Grid&gt;
  &lt;/Window&gt;
  </code></pre>