[NullReferenceException: 未将对象引用设置到对象的实例。]
sqlhelper.onesql(String cmdText) in d:\wwwroot\heiyu190\wwwroot\App_Code\sqlhelper.cs:86
wenzhang.Page_Load(Object sender, EventArgs e) in d:\wwwroot\heiyu190\wwwroot\wenzhang.aspx.cs:18
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
System.Web.UI.Control.LoadRecursive() +50
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +627
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