maxItemsInObjectGraph ignored

Question

I have a problem with a WCF service, which tries to serialize too much data. From the trace I get an error which says that the maximum number of elements that can be seriali

Answer 1

Any setting put in the web.config were happily ignored, I haven't found out why. But I found a workaround, that is, to put the MaxItemsInObjectGraph as a class decoration. This works flawlessly:

// MyService.svc
// using...

namespace MyNamespace {
  [ServiceContract]
  [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]
  [ServiceBehavior(MaxItemsInObjectGraph = 65536000)]
  public class MyWebService {

    [OperationContract]
    [WebGet(UriTemplate = "tree/{sessionId}", ResponseFormat = WebMessageFormat.Json)]
    public MyData GetTree(string sessionId) {
    ...
...