Event reciver examples in sharepoint 2010

Itemdeleting event reciver

 public override void ItemDeleting(SPItemEventProperties properties)

       {

           base.ItemDeleting(properties);

           //listitem title name equal new that time event will fire

           if (properties.ListItem["Title"].ToString() == "new")

           {

               properties.ErrorMessage = "Dont delete the item title starts with new";

        // firing event will restrict the user any action will happen

               properties.Cancel = true;

           }

           else

           {

               properties.Cancel = false;

           }

           //SPUtility.Redirect(properties.Web.Url, SPRedirectFlags.DoNotEndResponse, HttpContext.Current);

       }

Itemadded event reciver

public override void ItemAdded(SPItemEventProperties properties)

       {

           base.ItemAdded(properties);

           SPListItem item = properties.ListItem;

           //update only date for this column.if u add or update any data in the new date column..

           item["newdate"] = DateTime.Now.ToString();

           item.Update();

          

       }