private static void GetFieldExpressionFromTree(QueryExpression queryExpression, FieldQueryExpressionCollections qfc)
{
if (null != queryExpression.LeftQueryExpression)
{
GetFieldExpressionFromTree(queryExpression.LeftQueryExpression, qfc);
GetFieldExpressionFromTree(queryExpression.RightQueryExpression, qfc);
}
else
{
if (null == queryExpression.LeftQueryExpression) // && queryExpression.GetType() == typeof(FieldQueryExpression)
{
qfc.AddFieldQueryExpressionAndResult((FieldQueryExpression)queryExpression, null);
}
}
}
