Is it possible to limit the amount of results returned in a response when using a QueryExpression in CRM 4

Question

Basically I have a QueryExpression that returns over 3000 results. I only need to use between 50 and 200 of these. If I was using normal sql I could use SELECT TOP 200..... Is there a way to do this in CRM using the QueryExpression or FetchXML?

Answer 1

In a QueryExpression:

QueryExpression query = new QueryExpression(); 
query.PageInfo = new PagingInfo();
query.PageInfo.Count = 200; // or 50, or whatever
query.PageInfo.PageNumber = 1;

In Fetch XML:

<fetch mapping='logical' page='1' count='200'>
...