/// <summary>
/// This is called only in criterias. It shouldn't be called when in generating columns
/// </summary>
/// <param name="node"></param>
/// <returns></returns>
protected override Expression VisitMember(MemberExpression node)
{
if (node.InvolvesParameter())
{
HandleParameter(node);
}
else
{
WriteParameter(node);
}
return node;
}