我想从(提供者)businessdata filter webpart 向 BDC List WebPart 提供“查询值”。当我尝试连接时出现错误。“提供者连接点(BusinessDataFilterWebPart)和消费者连接点“BusinessDataListWebPart”不使用相同的连接接口。”
以下是我的代码片段。
System.Web.UI.WebControls.WebParts.WebPart providerWebPart =
webPartManager.WebParts[filterWebPart.ID];
ProviderConnectionPointCollection providerConnections =
webPartManager.GetProviderConnectionPoints(providerWebPart);
ProviderConnectionPoint providerConnection = null;
foreach (ProviderConnectionPoint ppoint in providerConnections)
{
if (ppoint.InterfaceType == typeof(ITransformableFilterValues))
providerConnection = ppoint;
}
System.Web.UI.WebControls.WebParts.WebPart consumerWebPart =
webPartManager.WebParts[consumer.ID];
ConsumerConnectionPointCollection consumerConnections =
webPartManager.GetConsumerConnectionPoints(consumerWebPart);
ConsumerConnectionPoint consumerConnection = null;
foreach (ConsumerConnectionPoint cpoint in consumerConnections)
{
if (cpoint.InterfaceType == typeof(IWebPartParameters))
consumerConnection = cpoint;
}
SPWebPartConnection newConnection = webPartManager.SPConnectWebParts(
providerWebPart, providerConnection, consumerWebPart, consumerConnection);