Xaml to WPF code behind

Hi,
how to convert(move) this XAML code to Code behind in wpf( XAML---> code behind)


       
           
               
                   
                       
                                                                         From="200" To="200" Duration="0:0:0.2" Completed="DoubleAnimation_Completed"/>
                       
                   
               
           
       
       

Thanks and Regards

Muthukumar