public void SelectReferAmTiet(object obj, SelectAmTietEventArgs e)
 {
     if (refPath != e.Path)
     {
         refPath     = e.Path;
         _refChanged = true;
     }
     else
     {
         _refChanged = false;
     }
 }
 public void SelectAmTietLeft(object obj, SelectAmTietEventArgs e)
 {
     Debug.WriteLine(" Select file Left: {0}", e.Path);
     //if (yourPath != e.Path)
     {
         yourPath    = e.Path;
         leftChanged = true;
     }
     //else
     // {
     ///     leftChanged = false;
     // }
 }
 public void SelectAmTietRight(object obj, SelectAmTietEventArgs e)
 {
     Debug.WriteLine(" Select file Right: {0}", e.Path);
     // if (refPath != e.Path)
     {
         refPath      = e.Path;
         rightChanged = true;
     }
     // else
     // {
     //     rightChanged = false;
     // }
 }