Programmatically Disable Event Receiver Firing on List Item in SharePoint

Through this post, you will see how we will disable Event Firing for SP List Item for a Custom List.

Step:-1 Add a class file in your project. Let's name it clsEnableDisableEvent.cs

Step:-2 Put below code in above class file...

using System;

using System.Collections.Generic;

using System.Text;

using Microsoft.SharePoint;

namespace YourProjectNamespace

{

   public class clsEnableDisableEvent: SPItemEventReceiver

    {

        public void DisableListItemEventFiring()

        {

           this.EventFiringEnabled =false;

        }

        public void EnableListItemEventFiring()

        {

           this.EventFiringEnabled =true;

        }

    }

}

Step:-3 Now use above create class in your Web Part.

using (SPSite site = new SPSite("Your SharePoint Site Url"))

            {

                using (SPWeb web = site.OpenWeb())

                {

                    SPList list = web.Lists["YourCustomList"];

                    SPListItem item = list.GetItemById(1);

                    item["Title"] ="New Updated Title";

                    clsEnableDisableEvent objItemEvent = new clsEnableDisableEvent();

                    objItemEvent.DisableListItemEventFiring();

                    item.Update();

                    objItemEvent.EnableListItemEventFiring();                   

                }

            }

Run your code. Now when you update/Delete list item Event Receiver will not fire.