How to fetch more than 5000 entities from CRM

Question

I\'m querying MS Dynamics CRM Online from my console app:

public EntityCollection GetEntities(string entityName)
{
    IOrganizationService proxy = ServerCon         


        

Answer 1

You can use LINQ as shown below. The CRM LINQ provider will automatically page the query and run as many requests as is needed to get the full result, and return the complete set in a single object. It's really convenient for us. However, be careful with that. If the result set is very large it will be noticeably slow, and it could even throw an OutOfMemoryException in extreme cases.

 public List GetEntities(string entityName)
    {
        OrganizationServiceContext DataContext = new OrganizationServiceContext(ServerConnection.GetOrganizationProxy());

        return DataContext.CreateQuery(entityName).toList();
    }

Here's an alternative implementation for paging with FetchXML, which I like much better than the official examples:

int page = 1;
EntityCollection entityList = new EntityCollection();

do
{
    entityList = Context.RetrieveMultiple(new FetchExpression(String.Format(" ... ", SecurityElement.Escape(entityList.PagingCookie), page++)));

    // Do something with the results here
}
while (entityList.MoreRecords);