title: Show animation till an operation completes wpf
body: <p>I want to show an animation wile an operation takes place... and when that operation takes the data and load my datagird i want to stop that animation like in ASP.NET using Ajax or Json but I don't know how to perform same operation here...</p>
  
  <p>Kindly help me!</p>
  
  <p>media element don't help.</p>