如何仅为具有specyfic模板ID的列表添加事件接收器

Question

我正在为自定义列表模板添加ItemAdding事件接收器.事件接收器和列表模板都由相同的功能部署.同样的功能也会创建列表实例.

我遇到的问题是,为部署它的站点中的每个列表项触发了事件.eventreceivre的Elements.xml是:

<Receivers ListTemplateId="10200">
  <Receiver>
    <Name>ListEventReceiverItemAdding</Name>
    <Type>ItemAdding</Type>
    <Assembly>$SharePoint.Project.AssemblyFullName$</Assembly>
    <Class>SharepoitProject.ListEventReceiver</Class>
    <SequenceNumber>10000</SequenceNumber>
  </Receiver>
</Receivers>

我不确定我做错了什么我从这里开始或多或少做了什么.

环境:Sharepoint 2010与本网站上的发布功能

Answer 1

我的事件接收器遇到了同样的问题.我尝试过ListTemplateId,ListTemplateOwner,甚至是ListUrl.我知道设置是有效的,但它们被忽略了,接收器被附加到每个列表.

我有一种预感,它可能与在Site scoped功能中声明的Event Receiver有关.这似乎是由SPEventElement 的"文档"证实的:

  switch (this.FeatureDefinition.Scope)
  {
    case SPFeatureScope.Site:
      if (this.SiteScopedReceivers())
      {
        this.UpdateEventReceiversForSite(site, sqlcmdAppendOnly, new SPEventElement.GetSqlToUpdateEventReceiversForSite(this.GetEventReceivers(site.RootWeb).GetSqlToAddEventReceiversToSite));
        break;
      }
      else
      {
        this.UpdateEventReceiversForWeb(site.RootWeb, sqlcmdAppendOnly, new SPEventElement.GetSqlToUpdateEventReceiversForWeb(this.GetEventReceivers(site.RootWeb).GetSqlToAddEventReceiversToWeb));
        break;
      }
    case SPFeatureScope.Web:
      if (this.RootWebOnly && !web.IsRootWeb)
      {
        ULS.SendTraceTag(1718513714U, (ULSCatBase) ULSCat.msoulscat_WSS_General, ULSTraceLevel.Verbose, "Event Receivers in Feature '{0}' were not activated because current web is not the root web.", new object[1]
        {
          (object) this.FeatureDefinition.Id.ToString("B")
        });
        break;
      }
      else
      {
        bool templateIdExists;
        int templateId;
        this.CheckTemplateId(out templateIdExists, out templateId);
        if (!templateIdExists)
        {
          if (this.ListUrl != null)
          {
            this.UpdateEventReceiversForList(web, sqlcmdAppendOnly, new SPEventElement.GetSqlToUpdateEventReceiversForList(this.GetEventReceivers(web).GetSqlToAddEventReceiversToList), true);
            break;
          }
          else
          {
            this.UpdateEventReceiversForWeb(web, sqlcmdAppendOnly, new SPEventElement.GetSqlToUpdateEventReceiversForWeb(this.GetEventReceivers(web).GetSqlToAddEventReceiversToWeb));
            break;
          }
        }
        else
        {
          if (this.ListUrl != null)
            throw new SPException(SPResource.GetString("ElementHasBothTemplateIdAndUrl", new object[0]));
          this.UpdateEventReceiversForListTemplate(templateId, web, sqlcmdAppendOnly, new SPEventElement.GetSqlToUpdateEventReceiversForList(this.GetEventReceivers(web).GetSqlToAddEventReceiversToList));
          break;
        }
      }
  }

对于网站范围的功能,似乎会忽略ListTemplateId,ListTemplateOwner和ListUrl.当我将Event Receiver元素移动到Web范围功能时,接收器只能正确连接到所需的列表.