Hi Gu,
Please make sure that the http handlers are registered property - following is a web config that specifies http handlers for both IIS and dev server:
<?xml version="1.0"?>
<!--
Note: As an alternative to hand editing this file you can use the
web admin tool to configure settings for your application. Use
the Website->Asp.Net Configuration option in Visual Studio.
A full list of settings and comments can be found in
machine.config.comments usually located in
\Windows\Microsoft.Net\Framework\v2.x\Config
-->
<configuration>
<configSections>
</configSections>
<appSettings>
<add key="defaultTheme" value="OrangeGrey"/>
<add key="fullSearch" value="true"/>
</appSettings>
<connectionStrings/>
<system.web>
<sessionState timeout="20"/>
<!--
Set compilation debug="true" to insert debugging
symbols into the compiled page. Because this
affects performance, set this value to true only
during development.
-->
<httpRuntime requestValidationMode="2.0" />
<compilation debug="true" targetFramework="4.0">
<assemblies>
<add assembly="System.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
<add assembly="System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
<add assembly="System.Runtime.Serialization.Formatters.Soap, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
<add assembly="System.Drawing.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
<add assembly="System.Runtime.Remoting, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
<add assembly="System.Configuration.Install, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
<add assembly="System.Data.OracleClient, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
<add assembly="System.Web, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
<add assembly="System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
<add assembly="System.Xml, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
<add assembly="System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
<add assembly="System.Data, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
<add assembly="System.Configuration, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
<add assembly="System.Web.Services, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
<add assembly="System.DirectoryServices, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
<add assembly="System.DirectoryServices.Protocols, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
<add assembly="System.EnterpriseServices, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
<add assembly="System.ServiceProcess, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
<add assembly="System.Web.RegularExpressions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
<add assembly="System.Management, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/></assemblies>
</compilation>
<!--
The <authentication> section enables configuration
of the security authentication mode used by
ASP.NET to identify an incoming user.
-->
<authentication mode="Windows"/>
<!--
The <customErrors> section enables configuration
of what to do if/when an unhandled error occurs
during the execution of a request. Specifically,
it enables developers to configure html error pages
to be displayed in place of a error stack trace.
<customErrors mode="RemoteOnly" defaultRedirect="GenericErrorPage.htm">
<error statusCode="403" redirect="NoAccess.htm" />
<error statusCode="404" redirect="FileNotFound.htm" />
</customErrors>
-->
<httpHandlers>
<add verb="*" path="NevronChart.axd" type="Nevron.Chart.WebForm.NChartImageResourceHandler" validate="false"/>
<add verb="*" path="NevronScriptManager.axd" type="Nevron.UI.WebForm.Controls.NevronScriptManager" validate="false"/>
<add verb="GET,HEAD" path="NevronPrinting.axd" type="Nevron.UI.WebForm.Controls.NPrintPreviewHttpHandler" validate="false"/>
<add verb="GET,HEAD" path="NevronCustomTools.axd" type="Nevron.Examples.Chart.WebForm.NChartZoomHttpHandler" validate="false"/>
<add path="NThinChartControlHttpHandler.axd" verb="*" type="Nevron.Chart.ThinWeb.NThinChartControlHttpHandler" validate="false"/>
<add path="NAspNetThinWebControlHttpHandler.axd" verb="*" type="Nevron.ThinWeb.NAspNetThinWebControlHttpHandler" validate="false"/>
</httpHandlers>
<pages validateRequest="false" controlRenderingCompatibilityVersion="3.5" clientIDMode="AutoID"/></system.web>
<system.webServer>
<validation validateIntegratedModeConfiguration="false"/>
<handlers>
<add name="NevronChart" preCondition="integratedMode" verb="*" path="NevronChart.axd" type="Nevron.Chart.WebForm.NChartImageResourceHandler"/>
<add name="NevronScriptManager" preCondition="integratedMode" verb="*" path="NevronScriptManager.axd" type="Nevron.UI.WebForm.Controls.NevronScriptManager"/>
<add name="NThinChartControlHttpHandler" preCondition="integratedMode" verb="*" path="NThinChartControlHttpHandler.axd" type="Nevron.Chart.ThinWeb.NThinChartControlHttpHandler"/>
<add name="NAspNetThinWebControlHttpHandler" preCondition="integratedMode" verb="*" path="NAspNetThinWebControlHttpHandler.axd" type="Nevron.ThinWeb.NAspNetThinWebControlHttpHandler"/>
<add name ="NPrintPreviewHttpHandler" preCondition="integratedMode" verb="GET, HEAD" path="NevronPrinting.axd" type="Nevron.UI.WebForm.Controls.NPrintPreviewHttpHandler"/>
<add name ="NevronCustomTools" preCondition="integratedMode" verb="GET, HEAD" path="NevronCustomTools.axd" type="Nevron.Examples.Chart.WebForm.NChartZoomHttpHandler"/>
</handlers>
</system.webServer>
</configuration>
Hope this helps - let us know if you meet any problems.
Best Regards,
Nevron Support Team