To register an event handler for list events, create a folder in \Template\Features to contain a Feature.xml file that specifies the scope and ID of the Feature, and an elements manifest file that the former file references.

The Feature.xml file that registers an event handler might look like the following.

Xml

<Feature 
  Scope="Web" 
  Title="Simple Updating Item Event Handler Registration" 
  Id="A6B8687A-3200-4b01-AD76-09E8D163FB9A" 
  xmlns="http://schemas.microsoft.com/sharepoint/">
  <ElementManifests>
    <ElementManifest Location="elements.xml"/>
  </ElementManifests>
</Feature>

The elements manifest file registers the event handler assembly and associates it with a list type, which the following example specifies to be announcement lists (104).

Xml

<Elements xmlns="http://schemas.microsoft.com/sharepoint/">
  <Receivers 
    ListTemplateOwner="ADDABAAA-1111-2222-3333-111111111111" 
    ListTemplateId="104">
    <Receiver>
      <Name>SimpleUpdateEvent</Name>
      <Type>ItemUpdating</Type>
      <SequenceNumber>10000</SequenceNumber>
      <Assembly>SimpleUpdateEventHandler, Version=1.0.0.0, Culture=neutral, PublicKeyToken=10b23036c9b36d6d</Assembly>
      <Class>MS.Samples.SimpleItemUpdateHandler</Class>
      <Data></Data>
    </Receiver>
  </Receivers>
</Elements>

The .cs file for the event handler can use the Windows SharePoint Services object model to respond to events. For information about using the object model to create custom event handlers, see Event Fundamentals.

The following example defines the content of an error message to display when users attempt to modify items in a list.

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

namespace MS.Samples
{
    public class SimpleItemUpdateHandler : SPItemEventReceiver
    {
        public override void ItemUpdating(SPItemEventProperties properties)
        {
            properties.Cancel = true;
            properties.ErrorMessage = "Updating data is not supported.";
        }
    }
}

I Have a Problem with to Different Features and a identy TemplateType
Feature1 ID="EF286210-5F80-404d-8E91-856A19168DDE" TemplateType="11005" (Template Hidden=True)
Feature2 ID="43A18B61-2352-4365-B91E-9736F88F4E99" TemplateType="11005" (Template Hidden=True)

I'm deploy the Receiver with id of feature2 , and i look in the EventReceiver Collection to List on Template from Feature1 -> EventReceiver Attached (Bad)
List on Template from Feature2 -> EventReceiver Attached (correctly)

<Receivers ListTemplateOwner="43A18B61-2352-4365-B91E-9736F88F4E99" ListTemplateId="11001">
<Receiver>....

Example

See Also

Other Resources