既不是表 Table 的 DataColumn 也不是 DataRelation

“/Engtek”应用程序中的服务器错误。

WorkSheetStatus 既不是表 Table 的 DataColumn 也不是 DataRelation。

说明: 执行当前 Web 请求期间，出现未处理的异常。请检查堆栈跟踪信息，以了解有关该错误以及代码中导致错误的出处的详细信息。

异常详细信息: System.ArgumentException: WorkSheetStatus 既不是表 Table 的 DataColumn 也不是 DataRelation。

源错误:

行 94: 
行 95:             bool isExpired = Convert.ToDateTime(drv["EndDateTime"]) < DateTime.Now;

行 96: int workSheetStatus = Convert.ToInt32(drv["WorkSheetStatus"]);

行 97:             int precisionSheetStatus = Convert.ToInt32(drv["PrecisionSheetStatus"]);
行 98:

源文件: d:\Projects\Engtek\System\Maintenance\MaintenanceSchedule\MaintenanceScheduleProcessing.aspx.cs 行: 96

堆栈跟踪:

[ArgumentException: WorkSheetStatus 既不是表 Table 的 DataColumn 也不是 DataRelation。]
   System.Data.DataRowView.get_Item(String property) +1740730
   System_Maintenance_MaintenanceSchedule_MaintenanceScheduleProcessing.GvMaintenanceSchedule_RowDataBound(Object sender, GridViewRowEventArgs e) in d:\Projects\Engtek\System\Maintenance\MaintenanceSchedule\MaintenanceScheduleProcessing.aspx.cs:96
   System.Web.UI.WebControls.GridView.OnRowDataBound(GridViewRowEventArgs e) +108
   System.Web.UI.WebControls.GridView.CreateRow(Int32 rowIndex, Int32 dataSourceIndex, DataControlRowType rowType, DataControlRowState rowState, Boolean dataBind, Object dataItem, DataControlField[] fields, TableRowCollection rows, PagedDataSource pagedDataSource) +167
   System.Web.UI.WebControls.GridView.CreateChildControls(IEnumerable dataSource, Boolean dataBinding) +2417
   System.Web.UI.WebControls.CompositeDataBoundControl.PerformDataBinding(IEnumerable data) +57
   System.Web.UI.WebControls.GridView.PerformDataBinding(IEnumerable data) +14
   System.Web.UI.WebControls.DataBoundControl.OnDataSourceViewSelectCallback(IEnumerable data) +114
   System.Web.UI.DataSourceView.Select(DataSourceSelectArguments arguments, DataSourceViewSelectCallback callback) +31
   System.Web.UI.WebControls.DataBoundControl.PerformSelect() +142
   System.Web.UI.WebControls.BaseDataBoundControl.DataBind() +73
   System.Web.UI.WebControls.GridView.DataBind() +4
   Insus.NET.InsusPagingUtility.GridViewDataBind(DataTable dt, GridView gv) +71
   Insus.NET.InsusPagingUtility.GridViewDataBind(DataTable dt, UserControl uc, GridView gv, Panel pl, Int32 PageSize) +235
   System_Maintenance_MaintenanceSchedule_MaintenanceScheduleProcessing.Data_Binding() in d:\Projects\Engtek\System\Maintenance\MaintenanceSchedule\MaintenanceScheduleProcessing.aspx.cs:48
   System_Maintenance_MaintenanceSchedule_MaintenanceScheduleProcessing.Page_Load(Object sender, EventArgs e) in d:\Projects\Engtek\System\Maintenance\MaintenanceSchedule\MaintenanceScheduleProcessing.aspx.cs:39
   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

版本信息: Microsoft .NET Framework 版本:2.0.50727.3053; ASP.NET 版本:2.0.50727.3053

问题原因与解决办法：
在修改程序时,出现上面这个异常。由于在数据库表中，添加了字段，再加上程序显示数据时，并非是SELECT * FROM ...
而是指定字段，当在预览程序时，出现上面的异常。在存储过程中的SELECT语句，添加上此字段。即可解决。