RadFilter - error on PostPack "Specified argument was out of the range of valid values"

[Paul]

Hi,

I am trying to use the RadFilter to create a customer filter. The code is as follows:

<% @ Control Language="vb" AutoEventWireup="false" CodeBehind="ReportCriteria.ascx.vb" Inherits="xxx.ReportCriteria" %>   <% @ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %>    <telerik:RadFilter runat="server" ID="RadFilter1"

OnApplyExpressions="RadFilter1_ApplyExpressions">

<FieldEditors>

<telerik:RadFilterBooleanFieldEditor FieldName="Some Bool" />

<telerik:RadFilterTextFieldEditor FieldName="Some Text" />

</FieldEditors>

</telerik:RadFilter>

and the code behind is...

Imports Telerik.Web.UI

Partial Public Class ReportCriteria
    Inherits System.Web.UI.UserControl

    Protected Sub RadFilter1_ApplyExpressions(ByVal sender As Object, ByVal e As Telerik.Web.UI.RadFilterApplyExpressionsEventArgs)
        Dim provider As New RadFilterSqlQueryProvider()
        provider.ProcessGroup(e.ExpressionRoot)
        ltlDebug.Text = provider.Result
    End Sub

End Class

The filter displays correctly, and I can add criteria. However, as soon as I change the condition from 'Some Bool' to 'Some Text' I get the following error:

Specified argument was out of the range of valid values.
Parameter name: HierarchicalIndex

[ArgumentOutOfRangeException: Specified argument was out of the range of valid values. Parameter name: HierarchicalIndex] Telerik.Web.UI.RadFilterItemsCollection.get_Item(String hierarchicalIndex) +63 Telerik.Web.UI.RadFilter.HandleClientCommand(String commandName, String commandArgs) +505 Telerik.Web.UI.RadFilter.RaisePostBackEvent(String eventArgument) +82 System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +13 System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +175 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1565

Any ideas? 

Thanks.

[Nikolay Rusev]

Hello Paul,

Can you tell exact version of RadControls for ASP.NET AJAX that you are using? You can also try latest SP2 of RadControls for ASP.NET AJAX and see whether the error still appear.

Regards,
Nikolay
the Telerik team

[Paul]

Hi, thanks for the reply but a colleague found the solution which is aparently an issue with the Telerik library.

The web applications web.config has the following line:

 

 

<xhtmlConformance mode="Legacy" />

In order to get the control to work correctly, the xhtml conformance had to be set to "Strict" for the page it was on.

One way to do that is like so:
 

 

<location path="xxx.aspx">
    <system.web>
      <xhtmlConformance mode="Strict" />
    </system.web>
  </location>

 

[Nikolay Rusev]

Hello Paul,

Indeed you should not use <xhtmlConformance mode="Legacy"/> with ASP.NET AJAX controls. Bellow you will find more details:
http://weblogs.asp.net/scottgu/archive/2006/12/10/gotcha-don-t-use-xhtmlconformance-mode-legacy-with-asp-net-ajax.aspx

Regards,
Nikolay
the Telerik team