问SharePoint 2010 Wiki页面库-限制在Wiki页面中插入Web部件

EN

public override void ItemUpdating(SPItemEventProperties properties)
        {               
            base.ItemUpdating(properties);                      
            SPListItem item = properties.ListItem; //get the list item being updated
            string pageUrl = item.Url; //get the item url for the web part manager
            SPLimitedWebPartManager lwpm = properties.Web.GetLimitedWebPartManager(pageUrl, PersonalizationScope.Shared); //get the web part manager
            if (lwpm.WebParts.Count > 0) //test for the presence of any web parts
            {
                properties.Cancel = true; //cancel the save
                properties.ErrorMessage = "WebParts are not allowed on this wiki page."; //display message to the user
            }
        }