[NullReferenceException: 未将对象引用设置到对象的实例。]
DTcms.Web.UI.BasePage.LoopChannelMenu_goods(StringBuilder strTxt, Int32 category_id) in D:\my_project\Now\工匠云视频\web\DTcms.Web.UI\Label\category.cs:147
DTcms.Web.UI.BasePage.get_goods_menu(Int32 category_id) in D:\my_project\Now\工匠云视频\web\DTcms.Web.UI\Label\category.cs:76
ASP.aspxw_main_goods_show_aspx.__Render__control1(HtmlTextWriter __w, Control parameterContainer) in c:\web\gjspsc\aspxw\main\goods\show.aspx:77
System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +275
System.Web.UI.Page.Render(HtmlTextWriter writer) +39
System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +79
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +4238
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