[FbException: conversion error from string ""]
FirebirdSql.Data.Firebird.FbCommand.ExecuteScalar() +212
LMOpac.Data.FBSqlHelper.ExecuteScalar(CommandType commandType, String commandText, FbParameter[] commandParameters) +145
LMOpac.Data.BookDAL.IsEBook(String acno, String& docid) +251
LMOpac.Data.BookDAL.BuildBookBaseInfo(IDataReader reader, Dictionary`2 fields) +2971
LMOpac.Data.BookDAL.GetSameAuthorBookList(String acno, Int32 topNum, String author) +402
LMOpac.Business.BookBLL.GetSameAuthorBookList(String acno, Int32 topNum, String author) +54
LMOpac.Web.Pages.Book.RenderBookAside(String tmp, String path) +3572
LMOpac.Web.Pages.Book.Page_Load(Object sender, EventArgs e) +3005
System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +14
System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +35
System.Web.UI.Control.OnLoad(EventArgs e) +99
LMOpac.Web.LMBasePage.OnLoad(EventArgs e) +2211
System.Web.UI.Control.LoadRecursive() +50
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +627
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