[Exception: SQL错误:select lxname from leixing3 where lxid=0 <br>(ex:System.NullReferenceException: 未将对象引用设置到对象的实例。
在 z.onesql(String cmdText) 位置 f:\usr\localuser\byw5110370001\App_Code\hy\z.cs:行号 109)]
z.onesql(String cmdText) in f:\usr\localuser\byw5110370001\App_Code\hy\z.cs:123
Sql_Helper.onesql(String cmdText) in f:\usr\localuser\byw5110370001\App_Code\hy\hysql.cs:259
news.datalist() in f:\usr\localuser\byw5110370001\wz.aspx.cs:73
news.Page_Load(Object sender, EventArgs e) in f:\usr\localuser\byw5110370001\wz.aspx.cs:19
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
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