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[Solved] Does not contain a property with the name

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Grid

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Ben asked on 18 Oct 2013, 03:09 PM

Hi All,

I have been searching for a fix for this issue but I dont feel im getting very far.

I have a grid with a DetailTables/GridTableView to expand the rows.

The grid is bound to a list of objects, these objects has a property which is another list of objects which holds the 'Code' property.

This issue does not happen on our dev servers, only on the production server.

Markup

<telerik:radgrid id="grdData" height="400px" width="100%" runat="server"

pagesize="50" showstatusbar="True" allowmultirowselection="False" allowpaging="True"

autogeneratecolumns="False" allowsorting="true" gridlines="None" cssclass="gridControl"

onneeddatasource="OnNeedDataSource" ondetailtabledatabind="RadGrid1_grdData"

onprerender="grdStudentsData_PreRender">

<pagerstyle mode="NumericPages"></pagerstyle>

<clientsettings allowcolumnsreorder="False" reordercolumnsonclient="False">

<Scrolling AllowScroll="True" UseStaticHeaders="True" />

</clientsettings>

<mastertableview width="98%" summary="Data" clientdatakeynames="PropertyA, PropertyB, PropertyC, PropertyD, PropertyE">

<DetailTables>

<telerik:GridTableView AutoGenerateColumns="false" DataKeyNames="Code,DisplayValue" Width="100%">

<Columns>

<telerik:GridBoundColumn AllowFiltering="False" AllowSorting="False" DataField="DisplayValue"

Display="True" HeaderText="Display Value" ReadOnly="True" Reorderable="True" Resizable="True"

ShowSortIcon="False" UniqueName="DisplayValue" Visible="True">

</telerik:GridBoundColumn>

<telerik:GridBoundColumn AllowFiltering="False" AllowSorting="False" DataField="Code"

Display="True" HeaderText="Code" ReadOnly="True" Reorderable="False" Resizable="True"

ShowSortIcon="False" UniqueName="Code" Visible="True">

</telerik:GridBoundColumn>

</Columns>

</telerik:GridTableView>

</DetailTables>

<Columns>

<telerik:GridBoundColumn AllowFiltering="False" AllowSorting="False" DataField="PropertyA"

Display="True" HeaderText="PropertyA" ReadOnly="True" Reorderable="True" Resizable="True"

ShowSortIcon="False" UniqueName="Entity" Visible="True">

</telerik:GridBoundColumn>

<telerik:GridBoundColumn AllowFiltering="False" AllowSorting="False" DataField="PropertyB"

Display="True" HeaderText="PropertyB" ReadOnly="True" Reorderable="False"

Resizable="True" ShowSortIcon="False" UniqueName="CodeAttribute" Visible="True">

</telerik:GridBoundColumn>

<telerik:GridBoundColumn AllowFiltering="False" AllowSorting="False" DataField="PropertyC"

Display="True" HeaderText="PropertyC" ReadOnly="True" Reorderable="True"

Resizable="True" ShowSortIcon="False" UniqueName="DescriptionAttribute" Visible="true">

</telerik:GridBoundColumn>

<telerik:GridBoundColumn AllowFiltering="False" AllowSorting="False" DataField="PropertyD"

Display="True" HeaderText="PropertyD" ReadOnly="True" Reorderable="True"

Resizable="True" ShowSortIcon="False" UniqueName="OptionAttribute" Visible="true">

</telerik:GridBoundColumn>

</Columns>

</mastertableview>

</telerik:radgrid>

Error

DataBinding: 'Object' does not contain a property with the name 'Code'.

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: DataBinding: 'Object' does not contain a property with the name 'Code'.

Stack Trace:

[HttpException (0x80004005): DataBinding: 'Object' does not contain a property with the name 'Code'.]

   System.Web.UI.DataBinder.GetPropertyValue(Object container, String propName) +11394950

   Telerik.Web.UI.GridTableView.PopulateDataKeys(Object dataItem) +409

[GridException: There was a problem extracting DataKeyValues from the DataSource. Please ensure that DataKeyNames are specified correctly and all fields specified exist in the DataSource.]

   Telerik.Web.UI.GridTableView.PopulateDataKeys(Object dataItem) +1060

   Telerik.Web.UI.GridItemBuilder.CreateItems(GridGroupingContext group) +411

   Telerik.Web.UI.GridTableView.CreateControlHierarchy(Boolean useDataSource) +1169

   Telerik.Web.UI.GridTableView.CreateChildControls(IEnumerable dataSource, Boolean useDataSource) +873

   System.Web.UI.WebControls.CompositeDataBoundControl.PerformDataBinding(IEnumerable data) +94

   System.Web.UI.WebControls.DataBoundControl.OnDataSourceViewSelectCallback(IEnumerable data) +182

   System.Web.UI.WebControls.DataBoundControl.PerformSelect() +274

   Telerik.Web.UI.GridTableView.DataBind() +432

   Telerik.Web.UI.GridDataItem.OnExpand() +461

   Telerik.Web.UI.GridItem.set_Expanded(Boolean value) +295

   Telerik.Web.UI.RadCompositeDataBoundControl.OnPreRender(EventArgs e) +46

   System.Web.UI.Control.PreRenderRecursiveInternal() +113

   System.Web.UI.Control.PreRenderRecursiveInternal() +222

   System.Web.UI.Control.PreRenderRecursiveInternal() +222

   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +4201

Anyone got any advice.

This happens as the grid/page loads.

Thanks
Ben

2 Answers, 1 is accepted

answered on 23 Oct 2013, 08:46 AM

Hi Ben,

It seems that the grid definition provided in the code snippet lacks ParentTableRelation tags which need to be configured when implementing a hierarchical grid structure:
http://demos.telerik.com/aspnet-ajax/grid/examples/data-editing/insert-update-delete-hierarchy/defaultcs.aspx

Please build your relations accordingly and let us know about the result.

Regards,
Eyup
Telerik

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