“/”应用程序中的服务器错误。

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行 38:         }
行 39:         stype = SiteClass.getClassInfoDetail(sid);
行 40:         if (stype == null) stype = subClass[0];
行 41:         itemList = SiteBasic.getList(stype.ClassId);
行 42:     }

[ArgumentOutOfRangeException: 索引超出范围。必须为非负值并小于集合大小。
参数名: index]
   System.ThrowHelper.ThrowArgumentOutOfRangeException() +72
   System.Collections.Generic.List`1.get_Item(Int32 index) +34
   service_detail.Page_Load(Object sender, EventArgs e) in f:\usr\localuser\qxw1099480119\service_detail.aspx.cs:40
   System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +51
   System.Web.UI.Control.OnLoad(EventArgs e) +92
   System.Web.UI.Control.LoadRecursive() +54
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +772