[RuntimeBinderException: 无法对 null 引用执行运行时绑定]
CallSite.Target(Closure , CallSite , Object ) +148
Web.DigitalLibrary.AllEbookType.bindProduct(Int32 pageIndex, Boolean haveChild) +3536
Web.DigitalLibrary.AllEbookType.Page_Load(Object sender, EventArgs e) +3422
System.Web.UI.Control.OnLoad(EventArgs e) +108
System.Web.UI.Control.LoadRecursive() +90
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1533
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