Server side paging in WCF Data ServiceObjective
article, I will show you, how we can achieve server side paging in WCF Data
Note: IF you are new to WCF Data Service, please read my other
articles on WCF Data Service. PPT
on WCF Data Service
Introduction to WCF Data Service
Here, I am assuming that, you have basic understanding of
WCF Data service. So I will start with the code in .svc file or
we see in above code, we are setting the access rule for all the entity in the
model to allow only the read operation. How to enable paging at
To enable paging at server side, we need to set the
page the entity page size and also we need to explicitly set the version of the
protocol to V2.
are telling here that return only one record for all the entities .
public class WcfDataService1 : DataService
public static void InitializeService(DataServiceConfiguration config)
config.DataServiceBehavior.MaxProtocolVersion = DataServiceProtocolVersion.V2;
Now when, we run the service, we can see
we navigate to Students table, we get the above result.
, we notice above result , we can see , a link that will be used to navigate to
next records. How
to fetch paged data at client side?
If we fetch the data at the
client side in normal way as below,
you will get name of only first student, because page size at server side is set
to 1 .
if we want to get all the record through paging, we need to use
property of DataServiceCollection.
above code will load the DataServiceCollection
with all the data from the
service. And then we can use normal foreach
statement to print all the
static void Main(string args)
StudentDBEntities ent = new StudentDBEntities(new Uri("http://localhost:11518/WcfDataService1.svc/"));
DataServiceCollection students = new DataServiceCollection(ent.Students);
while (students.Continuation != null)
foreach (var r in students)
you run output would be as below,
this was all about how to enable server side paging in WCF Data Service. Thanks
for reading. I hope article was useful.