I am following the steps mentioned in this link to create a Remote Event Receiver inside our SharePoint online site collection @ https://www.enjoysharepoint.com/create-remote-event-receiver-sharepoint-online/
and inside the AppEventReceiver.svc i define to attach the app on ItemUpdated and ItemUpdating as follow:-
public class AppEventReceiver : IRemoteEventService
{
/// <summary>
/// Handles app events that occur after the app is installed or upgraded, or when app is being uninstalled.
/// </summary>
/// <param name=”properties”>Holds information about the app event.</param>
/// <returns>Holds information returned from the app event.</returns>
public SPRemoteEventResult ProcessEvent(SPRemoteEventProperties properties)
{
SPRemoteEventResult result = new SPRemoteEventResult();
if (properties.EventType == SPRemoteEventType.AppInstalled)
{
using (ClientContext clientContext = TokenHelper.CreateAppEventClientContext(properties, false))
{
if (clientContext != null)
{
//Get reference to the host web list with name Feedback
var documentsList = clientContext.Web.Lists.GetByTitle("Project Update System");
clientContext.Load(documentsList);
clientContext.ExecuteQuery();
string remoteUrl = "https://tpusrer.azurewebsites.net/Services/TPUSRemoteEventReceiver.svc";
//Create the remote event receiver definition
EventReceiverDefinitionCreationInformation newEventReceiver = new EventReceiverDefinitionCreationInformation()
{
EventType = EventReceiverType.ItemUpdated,
ReceiverAssembly = Assembly.GetExecutingAssembly().FullName,
ReceiverName = "TPUSRemoteEventReceiver",
ReceiverClass = "TPUSRemoteEventReceiver",
ReceiverUrl = remoteUrl,
SequenceNumber = 15002
};
//Add the remote event receiver to the host web list
documentsList.EventReceivers.Add(newEventReceiver);
EventReceiverDefinitionCreationInformation newEventReceiver2 = new EventReceiverDefinitionCreationInformation()
{
EventType = EventReceiverType.ItemUpdating,
ReceiverAssembly = Assembly.GetExecutingAssembly().FullName,
ReceiverName = "TPUSRemoteEventReceiver2",
ReceiverClass = "TPUSRemoteEventReceiver2",
ReceiverUrl = remoteUrl,
SequenceNumber = 15001
};
//Add the remote event receiver to the host web list
documentsList.EventReceivers.Add(newEventReceiver2);
clientContext.ExecuteQuery();
}
}
}
else if (properties.EventType == SPRemoteEventType.AppUninstalling)
{
using (ClientContext clientContext = TokenHelper.CreateAppEventClientContext(properties, false))
{
var list = clientContext.Web.Lists.GetByTitle("Project Update System");
clientContext.Load(list);
clientContext.ExecuteQuery();
EventReceiverDefinitionCollection erdc = list.EventReceivers;
clientContext.Load(erdc);
clientContext.ExecuteQuery();
List<EventReceiverDefinition> toDelete = new List<EventReceiverDefinition>();
foreach (EventReceiverDefinition erd in erdc)
{
if (erd.ReceiverName == "TPUSRemoteEventReceiver")
{
toDelete.Add(erd);
}
}
//Delete the remote event receiver from the list, when the app gets uninstalled
foreach (EventReceiverDefinition item in toDelete)
{
item.DeleteObject();
clientContext.ExecuteQuery();
}
}
}
return result;
}
/// <summary>
/// This method is a required placeholder, but is not used by app events.
/// </summary>
/// <param name=”properties”>Unused.</param>
public void ProcessOneWayEvent(SPRemoteEventProperties properties)
{
throw new NotImplementedException();
}
}
and when i check the remote event receivers attached to the list using this PnP script,i got the 2 RERs,:-
Get-PnPEventReceiver -List "Project Update System"
But when i update a list item, the ItemUpdated RER will work well, but the ItemUpdating will not have any effect. here is the code for the ItemUpdating RER:-
public SPRemoteEventResult ProcessEvent(SPRemoteEventProperties properties)
{
int listItemID = properties.ItemEventProperties.ListItemId;
string siteUrl = properties.ItemEventProperties.WebUrl;
SPRemoteEventResult result = new SPRemoteEventResult();
string errormessage = "";
using (ClientContext context = TokenHelper.CreateRemoteEventReceiverClientContext(properties))
{
CamlQuery camlQuery = new CamlQuery();
camlQuery.ViewXml = string.Format("<View Scope=\"RecursiveAll\"><Query><Where><Eq><FieldRef Name='ID' /><Value Type='Number'>{0}</Value></Eq></Where></Query></View>", listItemID);
ListItemCollection collListItem = context.Web.Lists.GetByTitle("Project Update System").GetItems(camlQuery);
context.Load(collListItem);
context.Load(collListItem,
items => items.Include(
item => item.Id,
item => item["ProjectDescription"],
item => item["ProjectOMSNumber"],
item => item["ProjectDateSinged"],
item => item["ProjectManHoursEstimated"],
item => item["ProjectStage"],
item => item["ProjectApproveDelay"],
item => item["ProjectClosureSummary"],
item => item["ProjectHasBeenDelayed"],
item => item["ProjectDateSinged"],
item => item["ProjectHasBeenDelayed"],
item => item["ProjectStatusFlag"]
));
context.ExecuteQuery();
context.Load(collListItem);
foreach (ListItem i in collListItem)
{
//This for all the orders regardless if there are created from OMS or Manully7
FieldUrlValue currenturl = i["ProjectLinkToOMS"] != null ? (FieldUrlValue)i["ProjectLinkToOMS"] : null;
//var fff = properties.ItemEventProperties.AfterProperties["ProjectLinkToOMS"];
if (i["ProjectOMSID"] != null && properties.ItemEventProperties.AfterProperties["ProjectOMSID"] != null && (i["ProjectOMSID"].ToString() != properties.ItemEventProperties.AfterProperties["ProjectOMSID"].ToString()))
//||
//(i["ProjectLinkToOMS"] != null && properties.ItemEventProperties.AfterProperties["ProjectLinkToOMS"] != null && (!properties.ItemEventProperties.AfterProperties["ProjectLinkToOMS"].ToString().Contains(currenturl.Url+","+currenturl.Url))))
{
errormessage = errormessage + "Unaithorized access";
}
if (i["ProjectOMSID"] != null && !string.IsNullOrEmpty(i["ProjectOMSID"].ToString()))//item created from OMS!
{
TaxonomyFieldValue currentcustomer = (TaxonomyFieldValue)i["ProjectCustomer"];
if (
properties.ItemEventProperties.AfterProperties.ContainsKey("ProjectDescription") && i["ProjectDescription"] != null && properties.ItemEventProperties.AfterProperties["ProjectDescription"] != null &&
(
Regex.Replace(Regex.Replace(i["ProjectDescription"].ToString(), "<.*?>", String.Empty), @"\p{C}+", String.Empty)
!= Regex.Replace(Regex.Replace(properties.ItemEventProperties.AfterProperties["ProjectDescription"].ToString(), "<.*?>", String.Empty), @"\p{C}+", String.Empty)
)
)
{ errormessage = errormessage + "You are not authorized to update Description."; }
}
var vv = properties.ItemEventProperties.AfterProperties["ProjectCustomer"];
if (properties.ItemEventProperties.AfterProperties["ProjectStage"] != null && properties.ItemEventProperties.AfterProperties["ProjectStage"].ToString() == "Closed" && (properties.ItemEventProperties.AfterProperties["ProjectManHoursUsed"] == null || properties.ItemEventProperties.AfterProperties["ProjectManHoursUsed"].ToString() == string.Empty))
{
errormessage = errormessage + "You must enter Man Hour used before closing the project";
}
if (!string.IsNullOrEmpty(errormessage))
{
result.Status = SPRemoteEventServiceStatus.CancelWithError;
result.ErrorMessage = errormessage;
}
}
}
return result;}
So can anyone advice why the ItemUpdating RER is not firing? although seems it is registered and attached to the list.
Get-PnPEventReceiver?