How do I add an HttpHandler to the web.config?

16
votes

I wrote a httphandler to handle all XSLT requests.

The name of the handler is XSLTHandler.cs.

web.config

<configuration>
  <system.web>
    <compilation debug="true" targetFramework="4.0" />
  <httpHandlers>
    <add verb="*" path="*.xsl" type="XSLTHandler" />
  </httpHandlers>
  </system.web>
</configuration>

I got this error message, dont know how to fix it.

Configuration Error Description: An error occurred during the processing of a configuration file required to service this request. Please review the specific error details below and modify your configuration file appropriately.

Parser Error Message: Could not load type 'XSLTHandler'.

2
asp.netweb-confighttphandlerihttphandler

2 Answers

21
votes

What you're missing is the assembly and namespace that XSLTHandler belongs in, from MSDN. So if it's located in your current project, it should look like this:

<configuration>
  <system.web>
    <httpHandlers>
      <add verb="*" path="*.xsl" 
        type="WebApplicationName.XSLTHandler, WebApplicationName" />
    </httpHandlers>
  </system.web>
</configuration>
5
votes

The MSDN link shows how to configure for both the classic and integrated modes

https://msdn.microsoft.com/en-in/library/ms228090(v=vs.80) Note that you need to provide the proper namespace of the handler you are using

Example:

<configuration> 
<system.web>
<!--Classic-->
<httpHandlers><add verb="*" path="*.sample" name="HttpHandler" type="Handler.kHttpHandler"/></httpHandlers>
<compilation debug="true" targetFramework="4.5" />
<httpRuntime targetFramework="4.5" />
</system.web>

<system.webServer>
<!--Integrated mode-->
<handlers><add verb="*" path="*.sample" name="HttpHandler" type="Handler.kHttpHandler"/></handlers>
</system.webServer>
</configuration>