一般用下面的代码获取新闻区域下的子区域:
Guid guid = AreaManager.GetSystemAreaGuid(PortalContext.Current,SystemArea.News);
Area area = AreaManager.GetArea(PortalContext.Current,guid);
AreaCollection areas = area.Areas;
Area area = AreaManager.GetArea(PortalContext.Current,guid);
AreaCollection areas = area.Areas;
areas就是我们要获取的新闻区域子区域的集合,但得到的areas中的每个Area并没有按照每个区域的序号排序。而每个区域有个Order属性,新闻页面左边的区域导航就是按照这个Order属性从小到大显示的,“管理门户网站”中也是按照这个属性从小从大的顺序显示区域的。我想在新闻列表WebPart中也按照这个顺序显示。SharePoint自带的新闻区域中,子区域是按照每个子区域中最新列表的添加时间排序的,这样的排序是随时会变的,一般的新闻显示时,栏目是按照固定的顺序显示的。所以就需要对areas中的元素进行排序,排序的方法有多种,我先用了一种笨方法,用DataTable的Select方法排序,代码如下:
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很显然,这种方法不是好方法,我想到另外一种方法,用ArrayList的Sort方法,先建立一个实现IComparer的类AreaComparer,再将ArrayCollection复制到ArrayList中,调用al.Sort(new AreaComparer())进行排序,代码如下:
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