Create request message with prefer header in WebApi

Applies To: yes OData AspNet WebApi V6

var requestMessage = new HttpWebRequestMessage(new Uri("", UriKind.Absolute));
requestMessage.PreferHeader().ContinueOnError = true;
requestMessage.PreferHeader().MaxPageSize = 1024;
requestMessage.PreferHeader().TrackChanges = true;

Then in the http request header, we will have: Prefer: odata.continue-on-error,odata.maxpagesize=1024,odata.track-changes

Additional information

odata.track-changes, odata.maxpagesize, odata.maxpagesize are supported to add in prefer header since ODataLib 6.11.0.