private static void LinqEarlyBound()
{
count = 0;
CdsAuthHelper cdsAuthHelper = new CdsAuthHelper();
using (var proxy = new OrganizationWebProxyClient(cdsAuthHelper.serviceUrl, true))
{
// Set Header with the token
proxy.HeaderToken = cdsAuthHelper.token;
// Get Crm Service Context (Early bound)
CrmServiceContext context = new CrmServiceContext(proxy);
// Retrieve Account records
var accounts = (from m in context.AccountSet
orderby m.AccountId
select new
{
m.Name,
m.AccountId
}
);
count = accounts.ToList().Count;
}
}
private static void LinqLateBound()
{
count = 0;
CdsAuthHelper cdsAuthHelper = new CdsAuthHelper();
using (var proxy = new OrganizationWebProxyClient(cdsAuthHelper.serviceUrl, false))
{
// Set Header with the token
proxy.HeaderToken = cdsAuthHelper.token;
// Get Organization Service Context (Late bound)
OrganizationServiceContext context = new OrganizationServiceContext(proxy);
// Retrieve Account records
var accounts = (from m in context.CreateQuery("account")
orderby m.GetAttributeValue <Guid>("accountid")
select new
{
name = m.GetAttributeValue <string>("name"),
accountid = m.GetAttributeValue <Guid>("accountid"),
}
);
count = accounts.ToList().Count;
}
}
private static void QueryExpression()
{
count = 0;
CdsAuthHelper cdsAuthHelper = new CdsAuthHelper();
using (var proxy = new OrganizationWebProxyClient(cdsAuthHelper.serviceUrl, false))
{
// Set Header with the token
proxy.HeaderToken = cdsAuthHelper.token;
// Get Organization Service
IOrganizationService service = proxy;
// Initialize the page number.
int pageNumber = 1;
//Create a column set.
ColumnSet columns = new ColumnSet("name", "accountid");
// Create query expression.
QueryExpression query = new QueryExpression();
query.ColumnSet = columns;
query.EntityName = "account";
query.NoLock = true;
// Assign the pageinfo properties to the query expression.
query.PageInfo = new PagingInfo();
query.PageInfo.Count = recordsPerPage;
query.PageInfo.PageNumber = pageNumber;
query.NoLock = true;
// The current paging cookie. When retrieving the first page, pagingCookie should be null.
query.PageInfo.PagingCookie = null;
while (true)
{
// Retrieve the page.
EntityCollection results = service.RetrieveMultiple(query);
// Check for more records, if it returns true.
if (results.MoreRecords)
{
pageNumber++;
// Increment the page number to retrieve the next page.
query.PageInfo.PageNumber = pageNumber;
// Set the paging cookie to the paging cookie returned from current results.
query.PageInfo.PagingCookie = results.PagingCookie;
}
else
{
// If no more records are in the result nodes, exit the loop.
count = (recordsPerPage * pageNumber) + results.Entities.Count;
break;
}
}
}
}
private static void FetchXml()
{
count = 0;
CdsAuthHelper cdsAuthHelper = new CdsAuthHelper();
using (var proxy = new OrganizationWebProxyClient(cdsAuthHelper.serviceUrl, false))
{
// Set Header with the token
proxy.HeaderToken = cdsAuthHelper.token;
// Get Organization Service
IOrganizationService service = proxy;
string fetch = "<fetch mapping='logical' no-lock='true'>";
fetch += "<entity name='account'>";
fetch += "<attribute name='name'/>";
fetch += "<attribute name='accountid'/>";
fetch += "</entity>";
fetch += "</fetch>";
// Initialize the page number.
int pageNumber = 1;
// Specify the current paging cookie. For retrieving the first page, pagingCookie should be null.
string pagingCookie = null;
while (true)
{
// Build fetchXml string with the placeholders.
string xml = CreateXml(fetch, pagingCookie, pageNumber, recordsPerPage);
FetchExpression expression = new FetchExpression(xml);
var results = service.RetrieveMultiple(expression);
// Check for morerecords, if it returns 1.
if (results.MoreRecords)
{
// Increment the page number to retrieve the next page.
pageNumber++;
pagingCookie = results.PagingCookie;
}
else
{
// If no more records in the result nodes, exit the loop.
count = (recordsPerPage * pageNumber) + results.Entities.Count;
break;
}
}
}
}
private static void FetchParallel()
{
count = 0;
CdsAuthHelper cdsAuthHelper = new CdsAuthHelper();
using (var proxy = new OrganizationWebProxyClient(cdsAuthHelper.serviceUrl, false))
{
// Set Header with the token
proxy.HeaderToken = cdsAuthHelper.token;
string fetch = "<fetch mapping='logical' no-lock='true'>";
fetch += "<entity name='account'>";
fetch += "<attribute name='name'/>";
fetch += "<attribute name='accountid'/>";
fetch += "</entity>";
fetch += "</fetch>";
IDictionary <string, QueryBase> queries = new Dictionary <string, QueryBase>();
queries.Add("result", new FetchExpression(fetch));
Microsoft.Xrm.Tooling.Connector.CrmServiceClient context = new Microsoft.Xrm.Tooling.Connector.CrmServiceClient(proxy);
var manager = new OrganizationServiceManager(context);
IDictionary <string, EntityCollection> results = null;
try
{
results = manager.ParallelProxy.RetrieveMultiple(queries, true);
foreach (var result in results)
{
count += result.Value.Entities.Count;
}
}
catch (AggregateException ae)
{
// Handle exceptions
}
}
}
