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?