[InvalidOperationException: ExecuteReader: CommandText 属性尚未初始化]
SqlDBHelper.GetDataTable(String sql) in f:\usr\localuser\qxw1649860129\App_code\SqlDBHelper.cs:205
article_list.binddata(String sql1) in f:\usr\localuser\qxw1649860129\article\list.aspx.cs:72
article_list.Page_Load(Object sender, EventArgs e) in f:\usr\localuser\qxw1649860129\article\list.aspx.cs:66
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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