SharePoint 2010 编程链接两个web part

1. Get the SPLimitedWebPartManager instance on the page;
2. Get the provider and consumer Web parts need to be connected;
3. Get the connection points for the provider and consumer Web parts;
4. Connect them using SPConnectWebParts method. If necessary, certain transforming needs to be in place for compatible interfaces

SPWeb web = (SPWeb)properties.Feature.Parent;      
SPLimitedWebPartManager mgr = web.GetLimitedWebPartManager("default.aspx", PersonalizationScope.Shared);      
System.Web.UI.WebControls.WebParts.WebPart provider= mgr.WebParts["Provider"];   
System.Web.UI.WebControls.WebParts.WebPart consumer= mgr.WebParts["Consumer"];  
ConsumerConnectionPoint addConsumerConnPoint = mgr.GetConsumerConnectionPoints(consumer)["AddressConsumer_ot"];   
ProviderConnectionPoint addProviderConnPoint = mgr.GetProviderConnectionPoints(provider)["AddressProvider_ot"];      
mgr.SPConnectWebParts(provider, addProviderConnPoint, consumer, addConsumerConnPoint);