System.Security.Cryptography.RijndaelManaged.Dispose C# (CSharp) Method

        protected override void Dispose(bool disposing)
        {
            if (disposing)
            {
                _impl.Dispose();
                base.Dispose(disposing);
            }
        }
    }

 public byte[] CreateIV()
 {
     var r = new RijndaelManaged();
     r.GenerateIV();
     var result = r.IV;
     r.Dispose();
     return result;
 }