内容页中上一篇，下一篇的调用方法报错 [复制链接]

@{
    string templateDirectory = ViewBag.TemplateDirectory;
   var infoData = Html.InfoData();
    int infoId = infoData.Id;
    int columnId = infoData.ColumnId; //获取当前信息的栏目id
    var prevData = Html.InfoDataPrevious(columnId,infoId);
    var nextData = Html.InfoDataNext(columnId,infoId);
var productList = Html.SubDataList(new{Table="pa_subtable_3",ParentId=infoId});
}