SharePoint 使用对象模型操作页面上的Web Part

在WSS的开发中有时需要通过程序操作页面上的Web Part,比较添加，删除Web Part.此时可以使用 SPLimitedWebPartManager这个类，代码如下：

        //添加Web Part

        string AbsolutePageUrl = "http://YourSite/Page.aspx";
        using (SPSite site = new SPSite(AbsolutePageUrl))
        {
            using (SPWeb web = site.OpenWeb(AbsolutePageUrl))
            {
                SPLimitedWebPartManager SpWebPartManger = web.GetLimitedWebPartManager(AbsolutePageUrl,
                System.Web.UI.WebControls.WebParts.PersonalizationScope.Shared);

                // if MyWebPart is already installed, leave! 
                foreach (var webpart in SpWebPartManger.WebParts)
                {
                    if (webpart is MyWebPart)
                        return;
                }
                // else add it in the bottom! 
                SpWebPartManger.AddWebPart(new MyWebPart(), "Main", 10);
                SpWebPartManger.Dispose();

            }
        }

        //删除Web Part
        string AbsolutePageUrl = "http://YourSite/Page.aspx";
        using (SPSite site = new SPSite(AbsolutePageUrl))
        {
            using (SPWeb web = site.OpenWeb(AbsolutePageUrl))
            {
                SPLimitedWebPartManager SpWebPartManger = web.GetLimitedWebPartManager(AbsolutePageUrl,
                System.Web.UI.WebControls.WebParts.PersonalizationScope.Shared);

                WebPart webPartToDelete = null;
                // let's locate the webpart first.... 
                foreach (WebPart webpart in SpWebPartMaanger.WebParts)
                {
                    if (webpart is MyWebPart)
                    {
                        webPartToDelete = webpart;
                        break;
                    }
                }

                if (webPartToDelete != null)
                    SpWebPartManger.DeleteWebPart(webPartToDelete);
                SpWebPartManger.Dispose();

            }
        }

可参考：Add or Remove WebParts into SharePoint 2007 on runtime using SPLimitedWebPartManager

           How to create Web Part instances on pages using Features - FeatureReceiver - SPLimitedWebPartManager

Content Query Web Part的RSS Feed的URL格如下：

http://servername/_layouts/feed.aspx?xsl=registered .xsl files in the Web.config file&web=webaddress&page=guid&wp=guid.

wp=guid中的这个guid是指Content Query Web Part的ID，但是它并非是WebPart.UniqueId而是要通过SPLimitedWebPartManager.GetStorageKey()这个方法获取

可参考： _layouts/feed.aspx querystring "wp" id - what is it?