Server Error in '/' Application.

A field or property with name 'Syss_mdel' was not found in the selected data source. Possible causes of this error may be the following: an incorrect or case-insensitive spelling of the grid column name; assigning a wrong or not properly initialized data source to the grid.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Web.HttpException: A field or property with name 'Syss_mdel' was not found in the selected data source. Possible causes of this error may be the following: an incorrect or case-insensitive spelling of the grid column name; assigning a wrong or not properly initialized data source to the grid.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:


[HttpException (0x80004005): A field or property with name 'Syss_mdel' was not found in the selected data source. Possible causes of this error may be the following: an incorrect or case-insensitive spelling of the grid column name; assigning a wrong or not properly initialized data source to the grid.]
   DevExpress.Web.Data.WebDataControllerProvider.GetRowValueByControllerRow(Int32 controllerRow, String fieldName, Boolean isDesignTime) +307
   DevExpress.Web.Data.WebDataControllerProvider.GetRowValue(Int32 visibleIndex, String fieldName, Boolean isDesignTime) +160
   DevExpress.Web.Data.WebDataProxy.GetRowValue(Int32 visibleIndex, String fieldName) +154
   DevExpress.Web.Internal.GridTextBuilder.GetDisplayControlArgs(IWebGridDataColumn column, Int32 visibleIndex, IValueProvider provider, ASPxGridBase grid, Boolean highlightSearchText) +49
   DevExpress.Web.Internal.GridRenderHelper.CreateDataCellDisplayControl(IWebGridDataColumn column, Int32 visibleIndex, IValueProvider row) +44
   DevExpress.Web.Internal.GridRenderHelper.AddDisplayControlToDataCell(Control cell, IWebGridDataColumn column, Int32 visibleIndex, IValueProvider row) +31
   DevExpress.Web.Rendering.GridViewTableDataCell.CreateControlHierarchy() +138
   DevExpress.Web.Internal.InternalTableCell.CreateChildControls() +25
   System.Web.UI.Control.EnsureChildControls() +97
   DevExpress.Web.Internal.InternalTableCell.DevExpress.Web.Internal.IASPxWebControl.EnsureChildControls() +10
   DevExpress.Web.Internal.RenderUtils.EnsureChildControlsRecursive(Control control, Predicate`1 skipControlCondition) +35
   DevExpress.Web.Internal.RenderUtils.EnsureChildControlsRecursive(Control control, Predicate`1 skipControlCondition) +118
   DevExpress.Web.Internal.RenderUtils.EnsureChildControlsRecursive(Control control, Predicate`1 skipControlCondition) +118
   DevExpress.Web.Internal.RenderUtils.EnsureChildControlsRecursive(Control control, Predicate`1 skipControlCondition) +118
   DevExpress.Web.Internal.RenderUtils.EnsureChildControlsRecursive(Control control, Predicate`1 skipControlCondition) +118
   DevExpress.Web.Internal.RenderUtils.EnsureChildControlsRecursive(Control control, Boolean skipContentContainers) +64
   DevExpress.Web.ASPxWebControlBase.EnsureChildControlsRecursive(Control control, Boolean skipContentContainers) +12
   DevExpress.Web.ASPxWebControlBase.EnsureChildControlsRecursive(Control control) +37
   DevExpress.Web.ASPxWebControlBase.CreateChildControls() +113
   System.Web.UI.Control.EnsureChildControls() +97
   DevExpress.Web.ASPxWebControlBase.EnsureChildControls() +4
   DevExpress.Web.ASPxWebControlBase.DevExpress.Web.Internal.IASPxWebControl.EnsureChildControls() +10
   DevExpress.Web.Internal.RenderUtils.EnsureChildControlsRecursive(Control control, Predicate`1 skipControlCondition) +35
   DevExpress.Web.Internal.RenderUtils.EnsureChildControlsRecursive(Control control, Predicate`1 skipControlCondition) +118
   DevExpress.Web.Internal.RenderUtils.EnsureChildControlsRecursive(Control control, Boolean skipContentContainers) +64
   DevExpress.Web.ASPxWebControlBase.EnsureChildControlsRecursive(Control control, Boolean skipContentContainers) +12
   DevExpress.Web.ASPxWebControlBase.EnsureChildControlsRecursive(Control control) +37
   DevExpress.Web.ASPxWebControlBase.CreateChildControls() +113
   System.Web.UI.Control.EnsureChildControls() +97
   DevExpress.Web.ASPxWebControlBase.EnsureChildControls() +4
   DevExpress.Web.ASPxWebControlBase.DevExpress.Web.Internal.IASPxWebControl.EnsureChildControls() +10
   DevExpress.Web.Internal.RenderUtils.EnsureChildControlsRecursive(Control control, Predicate`1 skipControlCondition) +35
   DevExpress.Web.Internal.RenderUtils.EnsureChildControlsRecursive(Control control, Predicate`1 skipControlCondition) +118
   DevExpress.Web.Internal.RenderUtils.EnsureChildControlsRecursive(Control control, Predicate`1 skipControlCondition) +118
   DevExpress.Web.Internal.RenderUtils.EnsureChildControlsRecursive(Control control, Predicate`1 skipControlCondition) +118
   DevExpress.Web.Internal.RenderUtils.EnsureChildControlsRecursive(Control control, Predicate`1 skipControlCondition) +118
   DevExpress.Web.Internal.RenderUtils.EnsureChildControlsRecursive(Control control, Boolean skipContentContainers) +64
   DevExpress.Web.ASPxWebControlBase.EnsureChildControlsRecursive(Control control, Boolean skipContentContainers) +12
   DevExpress.Web.ASPxWebControlBase.EnsureChildControlsRecursive(Control control) +37
   DevExpress.Web.ASPxWebControlBase.CreateChildControls() +113
   DevExpress.Web.ASPxWebControl.CreateChildControls() +138
   System.Web.UI.Control.EnsureChildControls() +97
   DevExpress.Web.ASPxWebControlBase.EnsureChildControls() +4
   DevExpress.Web.ASPxDataWebControlBase.DataBindInternal() +120
   DevExpress.Web.ASPxWebControl.DataBind() +36
   DevExpress.Web.ASPxGridBase.DataBind() +164
   DevExpress.Web.Internal.DataHelperBase.EnsureDataBound(Boolean ensureChildControls) +59
   DevExpress.Web.Internal.DataContainer.EnsureDataBound() +142
   DevExpress.Web.ASPxDataWebControlBase.OnPreRender(EventArgs e) +22
   System.Web.UI.Control.PreRenderRecursiveInternal() +90
   System.Web.UI.Control.PreRenderRecursiveInternal() +163
   System.Web.UI.Control.PreRenderRecursiveInternal() +163
   System.Web.UI.Control.PreRenderRecursiveInternal() +163
   System.Web.UI.Control.PreRenderRecursiveInternal() +163
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +906


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.8.4494.0