MS Dynamics CRM 2011 - Paging Retrieve Multiple Records

QueryExpression query = new QueryExpression(Contact.EntityLogicalName);
EntityCollection coll;
query.PageInfo.PageNumber = 1;
query.ColumnSet = new ColumnSet("firstname", "lastname");
do
{
    int RecordId = 1;
    coll = CRMServiceProxy.RetrieveMultiple(query);
    foreach (Entity e in coll.Entities)
    {
        Console.WriteLine(query.PageInfo.PageNumber + " - " + RecordId + " - " + e.Attributes["firstname"] + " - " + e.Attributes["lastname"]);
        RecordId++;
    }
    query.PageInfo.PageNumber++;
}
while (coll.MoreRecords);

public static OrganizationServiceProxy CRMServiceProxy
        {
            get
            {
                var uri = new Uri(System.Configuration.ConfigurationManager.AppSettings["CrmOrganizationUri"]);

                //Authenticate using credentials of the logged in user;      
                var cnt = new ClientCredentials();
                cnt.Windows.ClientCredential.Domain = System.Configuration.ConfigurationManager.AppSettings["CrmDomain"].ToString();
                cnt.Windows.ClientCredential.UserName = System.Configuration.ConfigurationManager.AppSettings["CrmUserName"].ToString();
                cnt.Windows.ClientCredential.Password = System.Configuration.ConfigurationManager.AppSettings["CrmPassword"].ToString();
                //cnts.Windows.ClientCredential = CredentialCache.DefaultNetworkCredentials;

                var sp = new OrganizationServiceProxy(uri, null, cnt, null);
                sp.EnableProxyTypes();

                return sp;
            }
        }

Retrieve Multiple Dynamics CRM 2011 Entity Records from BizTalk 2010 Server

Retrieve Multiple Dynamics CRM 2011 Entity Records from BizTalk 2010 Server
1)Create new map (MCRM_List.btm)

2) Added <Fetch><Query/></Fetch> schema in the SAuditXML.xml schema

3)Select Source Schema (SAuditXML), Desitnation Schema(DNS_BTS_CRM.organixationservice_schemas_microsoft_com_xrm_2011_contracts_services -> RetrieveMultiple)

4)Make Query(source) link to FetchExpression->Query(Destination)

CRM Linq

//PickList values

private Dictionary<String, String> PickList(String entityName, String attID, string attName)
{
    Dictionary<String, String> dic = new Dictionary<String, String>();
    IOrganizationService service = (IOrganizationService)serviceProxy;
    QueryExpression qryExp = new QueryExpression(entityName);
    qryExp.ColumnSet = new ColumnSet(attName);
    EntityCollection entCollection = service.RetrieveMultiple(qryExp);
    dic = entCollection.Entities
        .Where(e => (e.Attributes.ContainsKey(attName)))
        .ToDictionary(e => e.Attributes[attID].ToString(), e => e.Attributes[attName].ToString());
    /*int i=1;
    foreach (var c in entCollection.Entities)
    {
        if (c.Attributes.ContainsKey(attName))
        {
        dic.Add(c.Attributes[attID].ToString(), c.Attributes[attName].ToString());
        }
    }*/
}