Grid throws exception on edit only

[Paul]

So, I have a grid databound in my code behind.  It loads fine, and I built a detail button that works fine.  But when I click on edit, I get: "JavaScript runtime error: Sys.WebForms.PageRequestManagerServerErrorException: Selection out of range Parameter name: value" and when I disable Ajax I can see:
[ArgumentOutOfRangeException: Selection out of range
Parameter name: value]
   Telerik.Web.UI.RadComboBox.PerformDataBinding(IEnumerable dataSource) +191
   Telerik.Web.UI.RadComboBox.OnDataSourceViewSelectCallback(IEnumerable data) +509
   System.Web.UI.DataSourceView.Select(DataSourceSelectArguments arguments, DataSourceViewSelectCallback callback) +33
   Telerik.Web.UI.RadComboBox.OnDataBinding(EventArgs e) +1296
   Telerik.Web.UI.RadComboBox.PerformSelect() +37
   System.Web.UI.WebControls.BaseDataBoundControl.DataBind() +30
   Telerik.Web.UI.RadComboBox.DataBind() +71
   System.Web.UI.Control.DataBindChildren() +187
   System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding) +94
   System.Web.UI.Control.DataBind() +15
   System.Web.UI.Control.DataBindChildren() +187
   System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding) +94
   System.Web.UI.Control.DataBind() +15
   System.Web.UI.Control.DataBindChildren() +187
   System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding) +94
   System.Web.UI.Control.DataBind() +15
   System.Web.UI.Control.DataBindChildren() +187
   System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding) +94
   System.Web.UI.Control.DataBind() +15
   System.Web.UI.Control.DataBindChildren() +187
   System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding) +94
   System.Web.UI.Control.DataBind() +15
   System.Web.UI.Control.DataBindChildren() +187
   System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding) +94
   System.Web.UI.Control.DataBind() +15
   System.Web.UI.Control.DataBindChildren() +187
   System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding) +94
   System.Web.UI.Control.DataBind() +15
   System.Web.UI.Control.DataBindChildren() +187
   System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding) +94
   System.Web.UI.Control.DataBind() +15
   System.Web.UI.Control.DataBindChildren() +187
   System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding) +94
   System.Web.UI.Control.DataBind() +15
   Telerik.Web.UI.GridEditFormItem.SetupItem(Boolean dataBind, Object dataItem, GridColumn[] columns, ControlCollection rows) +414
   Telerik.Web.UI.GridItemBuilder.CreateItems(GridGroupingContext group) +998
   Telerik.Web.UI.GridTableView.CreateItems(IEnumerator enumerator, GridColumn[] columns, ControlCollection controls) +211
   Telerik.Web.UI.GridTableView.CreateControlHierarchy(Boolean useDataSource) +2173
   Telerik.Web.UI.GridTableView.CreateChildControls(IEnumerable dataSource, Boolean useDataSource) +865
   System.Web.UI.WebControls.CompositeDataBoundControl.PerformDataBinding(IEnumerable data) +67
   System.Web.UI.WebControls.DataBoundControl.OnDataSourceViewSelectCallback(IEnumerable data) +123
   System.Web.UI.DataSourceView.Select(DataSourceSelectArguments arguments, DataSourceViewSelectCallback callback) +33
   System.Web.UI.WebControls.DataBoundControl.PerformSelect() +138
   Telerik.Web.UI.GridTableView.PerformSelect() +38
   System.Web.UI.WebControls.BaseDataBoundControl.DataBind() +30
   Telerik.Web.UI.GridTableView.DataBind() +382
   Telerik.Web.UI.GridTableView.Rebind() +108
   Telerik.Web.UI.GridCommandEventArgs.ExecuteCommand(Object source) +383
   Telerik.Web.UI.RadGrid.OnBubbleEvent(Object source, EventArgs e) +210
   System.Web.UI.Control.RaiseBubbleEvent(Object source, EventArgs args) +37
   Telerik.Web.UI.GridItem.OnBubbleEvent(Object source, EventArgs e) +147
   System.Web.UI.Control.RaiseBubbleEvent(Object source, EventArgs args) +37
   System.Web.UI.WebControls.LinkButton.OnCommand(CommandEventArgs e) +121
   System.Web.UI.WebControls.LinkButton.RaisePostBackEvent(String eventArgument) +156
   System.Web.UI.WebControls.LinkButton.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +10
   System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +13
   System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +9665314
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1724

I've been beating my head against this and I can't see a thing wrong with the values I'm getting back from my queries.

My ASPX is:

<telerik:RadGrid ID="RadGrid1" runat="server" AutoGenerateColumns="False"
CellSpacing="0" GridLines="None" AllowPaging="True"
DataMember="ID"
onneeddatasource="RadGrid1_NeedDataSource"
OnUpdateCommand="RadGrid1_UpdateCommand" PageSize="20"
onitemcommand="RadGrid1_ItemCommand">
<MasterTableView DataKeyNames="status,charity,make,model,year,vin,date,id,salePrice,bid,note"
EditMode="EditForms">
<CommandItemSettings ExportToPdfText="Export to PDF"></CommandItemSettings>
<RowIndicatorColumn Visible="True" FilterControlAltText="Filter RowIndicator column">
<HeaderStyle Width="20px"></HeaderStyle>
</RowIndicatorColumn>
<ExpandCollapseColumn Visible="True" FilterControlAltText="Filter ExpandColumn column">
<HeaderStyle Width="20px"></HeaderStyle>
</ExpandCollapseColumn>
<Columns>
<telerik:GridButtonColumn CommandName="History" Text="History" UniqueName="detailBtn" HeaderText="History" HeaderButtonType="PushButton" AutoPostBackOnFilter="True">
</telerik:GridButtonColumn>
<telerik:GridBoundColumn HeaderText="Charity" ItemStyle-Width="140px" FilterControlAltText="Filter column2 column"
UniqueName="column3" DataType="System.String" DataField="charity" ReadOnly="True">
<ItemStyle Width="140px"></ItemStyle>
</telerik:GridBoundColumn>
<telerik:GridBoundColumn HeaderText="VIN" ItemStyle-Width="140px" FilterControlAltText="Filter column6 column"
UniqueName="column7" DataType="System.String" DataField="vin" >
<ItemStyle Width="140px"></ItemStyle>
</telerik:GridBoundColumn>
<telerik:GridBoundColumn HeaderText="Year" ItemStyle-Width="140px" FilterControlAltText="Filter column2 column"
UniqueName="column2" DataType="System.Int32" DataField="year">
<ItemStyle Width="140px"></ItemStyle>
</telerik:GridBoundColumn>
<telerik:GridBoundColumn HeaderText="Make" ItemStyle-Width="140px" FilterControlAltText="Filter column column"
UniqueName="column" DataType="System.String" DataField="make">
<ItemStyle Width="140px"></ItemStyle>
</telerik:GridBoundColumn>
<telerik:GridBoundColumn HeaderText="Model" ItemStyle-Width="140px" FilterControlAltText="Filter column1 column"
UniqueName="column1" DataType="System.String" DataField="model">
<ItemStyle Width="140px"></ItemStyle>
</telerik:GridBoundColumn>
<telerik:GridBoundColumn HeaderText="Last Update" ItemStyle-Width="140px" FilterControlAltText="Filter column1 column"
UniqueName="column5" DataType="System.DateTime" DataField="date" ReadOnly="True">
<ItemStyle Width="140px"></ItemStyle>
</telerik:GridBoundColumn>
<telerik:GridBoundColumn HeaderText="Min. Bid" ItemStyle-Width="140px" FilterControlAltText="Filter column1 column"
UniqueName="column8" DataType="System.Decimal" DataField="bid" DataFormatString="{0:C}" >
<ItemStyle Width="140px"></ItemStyle>
</telerik:GridBoundColumn>
<telerik:GridBoundColumn HeaderText="Sale Price" ItemStyle-Width="140px" FilterControlAltText="Filter column1 column"
UniqueName="column6" DataType="System.Decimal" DataField="salePrice" DataFormatString="{0:C}" Display="False">
<ItemStyle Width="140px"></ItemStyle>
</telerik:GridBoundColumn>
<telerik:GridBoundColumn HeaderText="Notes" ItemStyle-Width="140px" FilterControlAltText="Filter column1 column"
UniqueName="unsoldNotesColumn" DataType="System.String" DataField="note" Display="True">
<ItemStyle Width="140px"></ItemStyle>
</telerik:GridBoundColumn>
<telerik:GridTemplateColumn HeaderText="Latest Status" ItemStyle-Width="240px" AutoPostBackOnFilter="True">
<ItemTemplate>
<%#DataBinder.Eval(Container.DataItem, "Status")%>
</ItemTemplate>
<EditItemTemplate>
<telerik:RadComboBox RenderMode="Lightweight" runat="server" ID="updateComboBox" DataTextField="Status"
DataValueField="ID" DataSourceID="LinqDataSource1" SelectedValue='<%#Bind("ID") %>'
>
</telerik:RadComboBox>
</EditItemTemplate>
<ItemStyle Width="240px"></ItemStyle>
</telerik:GridTemplateColumn>
<telerik:GridEditCommandColumn FooterText="EditCommand footer" UniqueName="EditCommandColumn"
HeaderText="Edit" HeaderStyle-Width="100px" UpdateText="Update">
<HeaderStyle Width="100px"></HeaderStyle>
</telerik:GridEditCommandColumn>


</Columns>
<EditFormSettings EditColumn-DataType="System.String">
<EditColumn FilterControlAltText="Filter EditCommandColumn column"></EditColumn>
</EditFormSettings>
</MasterTableView>
<FilterMenu EnableImageSprites="False"></FilterMenu>
</telerik:RadGrid>

And I'm calling my query in the "need data source" event.

 

 

I'd be very very grateful for any advice!

[Viktor Tachev]

Hi Paul,

I have examined the provided code and it looks mostly correct. I noticed that the DataMember property is set for the grid. Note that this property is used to specify a specific set of data that will be used by the RadGrid (e.g. if you have a DataSet as data source you can use the DataMember to specify which DataTable will be used as source by the grid.).

However, in your scenario it seems that DataMember is pointing to a field from the data source. Please remove DataMember from the markup and see how the behavior changes.

On a side note, make sure that DataBind is not used anywhere in the code-behind for the RadGrid.

In case the issue persists please send us the complete markup with the related code-behind so we can examine it.

Regards,
Viktor Tachev
Telerik by Progress