如何获取SearchBoxEx实例来修改其属性？

Question

我需要在现有企业搜索中心的Search Box Web部件中修改SearchResultPageURL属性。显然，搜索框是在SearchBoxEx类中建模的。到目前为止，我无法弄清楚如何获取SearchBoxEx实例，我发现很难找到有关此主题的任何信息。

如何在C＃中获取SearchBoxEx实例？

Answer 1

我自己想通了，搜索框webpart的简单演员就足够了，如下：

//get the web part:
SPLimitedWebPartManager webPartManager = file.GetLimitedWebPartManager(PersonalizationScope.Shared);
SPLimitedWebPartCollection webParts = webPartManager.WebParts;
var searchBoxWebPart = (from System.Web.UI.WebControls.WebParts.WebPart webPart in webParts
                        where (webPart.Title.Equals("Search Box"))
                        select webPart).First();

//cast:
SearchBoxEx searchBox = (SearchBoxEx)searchBoxWebPart;