public static void RemoveInstance()
 {
     try
     {
         _instance.Dispose();
     }
     catch
     {
     }
     finally
     {
         _instance = null;
     }
 }
 public static void RemoveInstance()
 {
     try
     {
         _instance.Dispose();
     }
     catch
     {
     }
     finally
     {
         _instance = null;
     }
 }