[ArgumentOutOfRangeException: startIndex 不能大于字符串长度。
参数名: startIndex]
System.String.Substring(Int32 startIndex, Int32 length) +14342534
ASP.aspx_main_cn_exhibits_show_aspx.OnInit(EventArgs e) in e:\wirechina2020\cn\aspx\main_cn\exhibits_show.aspx:316
System.Web.UI.Control.InitRecursive(Control namingContainer) +173
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +491
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