Telerik Chart and SharePoint 2010 and getting red X image

[Maui]

Hi,

I have read your threads and have followed the direction in regards to getting the Telerik Chart to render in a SharePoint 2010 Web Part.  Quick question, if there is no data in the Chart it should display right?

Here is what I have done so far.

1. Added the chart to a SharePoint visual web part
2. Added the following safe controls to the web.config.
          <SafeControl Assembly="Telerik.Web.UI, Version=2011.2.712.35, Culture=neutral, PublicKeyToken=121fae78165ba3d4" Namespace="Telerik.Web.UI" TypeName="*" Safe="True" SafeAgainstScript="False" />
          <SafeControl Assembly="Telerik.Web.UI, Version=2011.2.712.35, Culture=neutral, PublicKeyToken=121fae78165ba3d4" Namespace="Telerik.Charting" TypeName="*" Safe="True" SafeAgainstScript="False" />
3. Added the following httphandler to the <system.web><httpHandlers>
          <add path="ChartImage.axd" verb="*" type="Telerik.Web.UI.ChartHttpHandler, Telerik.Web.UI, Version=2011.2.712.35, Culture=neutral, PublicKeyToken=121fae78165ba3d4" validate="false" />
4. Set the UseSession to false as well as set the TempImagesFolder

        <telerik:RadChart ID="RadChart1" runat="server"

 

 

 

        TempImagesFolder="~/_Layouts/TelericChartsTemp" UseSession="False"

 

 

 

        DataSourceID="XmlDataSource1">

5. Gave write permission to the application pool account to the /_Layouts/TelericChartsTemp folder
6. Deployed the solution but see the web part with a red X
7. I have also validated that the images are being copied to the /_Layouts/TelericChartsTemp folder

I am obviously missing something that is simple.  Please help.

Regards,

Maui

 

 

 

 

[Giuseppe]

Hello Maui,

Here are the general directions that are necessary for successful usage of RadChart for ASP.NET AJAX under Sharepoint:

• Deployment (http://www.telerik.com/help/aspnet-ajax/moss-deploying-radcontrols.html)

These two entries must be present in the SafeControl list:

<SafeControl Assembly="Telerik.Web.UI, Version=2011.2.712.35, Culture=neutral, PublicKeyToken=121fae78165ba3d4" Namespace="Telerik.Web.UI" TypeName="*" Safe="True" SafeAgainstScript="False" />
<SafeControl Assembly="Telerik.Web.UI, Version=2011.2.712.35, Culture=neutral, PublicKeyToken=121fae78165ba3d4" Namespace="Telerik.Charting" TypeName="*" Safe="True" SafeAgainstScript="False" />

Register the Chart http handler in the respective section of the web.config:
IIS6 and above (integrated mode)

<system.webserver>
    ...
    <handlers>

        ...

        <add name="ChartImage.axd_*" path="ChartImage.axd" verb="*" type="Telerik.Web.UI.ChartHttpHandler, Telerik.Web.UI, Version=2011.2.712.35, Culture=neutral, PublicKeyToken=121fae78165ba3d4" preCondition="integratedMode" />
    </handlers>
    <validation validateIntegratedModeConfiguration="false"/>
</system.webserver>

IIS5.x or IIS 6 and above (classic mode)

<httphandlers>
    <remove verb="*" path="*.asmx" />
    ...

    <add verb="*"path="ChartImage.axd"type="Telerik.Web.UI.ChartHttpHandler, Telerik.Web.UI, Version=2011.2.712.35, Culture=neutral, PublicKeyToken=121fae78165ba3d4" validate="false" />
</httphandlers>

• Incorporating the control in your site (http://www.telerik.com/help/aspnet-ajax/moss-incorporate-radcontrols-in-moss-sites.html)

These two register directives must be present on the page that will be displaying the chart control:

<%@ Register TagPrefix="telerik" Namespace="Telerik.Web.UI" Assembly="Telerik.Web.UI, Version=2011.2.712.35, Culture=neutral, PublicKeyToken=121fae78165ba3d4" %>
<%@ Register TagPrefix="telerik" Namespace="Telerik.Charting" Assembly="Telerik.Web.UI, Version=2011.2.712.35, Culture=neutral, PublicKeyToken=121fae78165ba3d4" %>

Based on the provided information the most probable reason for the error in your scenario would be incorrect http handler registration -- probably you are using II6+ in "integrated" mode and you will need to add the handler declaration under the system.webserver section as described above.

Hope this helps.


Best wishes,
Giuseppe
the Telerik team