Event Reciver SharePoint 2010

Remember that the suffix "-ing" indicates that the event is being handled before the action occurs, and the suffix "-ed" indicates that the event is being handled after the action occurs.

Cancel deletion of item :

using System;
using System.Collections.Generic;
using System.Text;
using Microsoft.SharePoint;

namespace MyEventHandlers

{
    public class SimpleEventHandler : SPItemEventReceiver    {
    }
}

public override void ItemDeleting(SPItemEventProperties properties)
{
    properties.Cancel = true;
    properties.ErrorMessage = "Deleting is not supported.";
}

Adding of  item

public override void ItemAdded(SPItemEventProperties properties)
{
    SPListItem oItem = properties.ListItem;
    oItem["Body"] = "Body text maintained by the system.";
    oItem.Update();
}

---------- Complete example  ----

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

using Microsoft.SharePoint;
namespace ERDefinition
{
    public class ItemEvents : SPItemEventReceiver
    {
        public override void ItemAdded(SPItemEventProperties properties)
        {
            SPListItem item = properties.ListItem;
            item["Title"] = item["Title"] + " - " + DateTime.Now;
            item.Update();
        }
    }
}

 

    --------------

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

using Microsoft.SharePoint;

namespace BindItemEvents
{
    class Program
    {
        static void Main(string[] args)
        {
            using (SPSite site = new SPSite("http://localhost/"))
            {
                using (SPWeb web = site.OpenWeb())
                {
                    SPList list = web.Lists["Shared Documents"];

                    SPEventReceiverDefinition def = list.EventReceivers.Add();

                    def.Assembly = "ERDefinition, Version=1.0.0.0, Culture=Neutral, PublicKeyToken=704f58d28567dc00";
                    def.Class = "ERDefinition.ItemEvents";
                    def.Name = "ItemAdded Event";
                    def.Type = SPEventReceiverType.ItemAdded;
                    def.SequenceNumber = 1000;
                    def.Synchronization = SPEventReceiverSynchronization.Synchronous;
                    def.Update();
                }
            }
        }
    }
}

 

 

Site Events

Site Events	Receiver Base Class	Event Host Type
SiteDeleting(SPWebEventProperties) SiteDeleted(SPWebEventProperties)	SPWebEventReceiver	SPSite

Web Events

Web Events	Receiver Base Class	Event Host Type
WebAdding(SPWebEventProperties) WebProvisioned(SPWebEventProperties) WebDeleting(SPWebEventProperties) WebDeleted(SPWebEventProperties) WebMoving(SPWebEventProperties) WebMoved(SPWebEventProperties)	SPWebEventReceiver	SPSite SPWeb

List Events

List Events	Receiver Base Class	Event Host Type
ListAdding(SPListEventProperties) ListAdded(SPListEventProperties) ListDeleting(SPListEventProperties) ListDeleted(SPListEventProperties)	SPListEventReceiver	SPSite SPWeb

List Field Events

List Field Events	Receiver Base Class	Event Host Type
FieldAdding(SPListEventProperties) FieldAdded(SPListEventProperties) FieldDeleting(SPListEventProperties) FieldDeleted(SPListEventProperties) FieldUpdating(SPListEventProperties) FieldUpdated(SPListEventProperties)	SPListEventReceiver	SPSite SPWeb SPList SPContentType

Item Events

Item Events	Receiver Base Class	Event Host Type
ItemAdding(SPItemEventProperties) ItemAdded(SPItemEventProperties) ItemDeleting(SPItemEventProperties) ItemDeleted(SPItemEventProperties) ItemUpdating(SPItemEventProperties) ItemUpdated(SPItemEventProperties) ItemFileConverted(SPItemEventProperties) ItemFileMoving(SPItemEventProperties) ItemFileMoved(SPItemEventProperties) ItemCheckingIn(SPItemEventProperties) ItemCheckedIn(SPItemEventProperties) ItemCheckingOut(SPItemEventProperties) ItemCheckedOut(SPItemEventProperties) ItemAttachmentAdding(SPItemEventProperties) ItemAttachmentAdded(SPItemEventProperties) ItemAttachmentDeleting(SPItemEventProperties) ItemAttachmentDeleted(SPItemEventProperties)	SPItemEventReceiver	SPSite SPWeb SPList SPContentType

See Also

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