SP 2010: How To - Event Receivers and Custom Error Pages

This article explains how to create event receivers (event handlers) in SharePoint 2010 that include custom error pages, a feature not available in SharePoint 2007. It covers using Visual Studio 2010's Event Receiver template, choosing between farm and sandboxed solutions, selecting list item events, and adding basic logic to handle events like ItemAdding. The guide includes steps for debugging with F5 and canceling events, providing developers with enhanced control over user error messages in SharePoint 2010.