public override void GetData(object target, Stream outgoingData)
        {
            Expression expr = (Expression)target;
            ExpressionTreeNode browser = new ExpressionTreeNode(expr);
            ExpressionTreeContainer container = new ExpressionTreeContainer(browser, expr.ToString());

            Serialize(outgoingData, container);
        }
        public ExpressionTreeContainer(ExpressionTreeNode tree, string expression)
        {
            this.tree = tree;
            this.expression = expression;

        }