Configuration issue Web.Config / Custom Providers

Question

Okay, this seems like a very simple issue, but I can't seem to get around it. I am almost 99% sure that this is an issue of Visual Studio itself, but I want to have a quick sanity check.

I am creating a custom provider for Health Monitoring in Asp.Net. I have made a very simple provider that inherits from the BufferedWebEventProvider. The code is located in the App_Code directory of my website and is as follows:

Public Class SQLApplicationExceptionProvider
Inherits System.Web.Management.BufferedWebEventProvider

Public Overrides Sub Initialize(ByVal name As String, ByVal config As System.Collections.Specialized.NameValueCollection)

 MyBase.Initialize(name, config)

End Sub

Public Overrides Sub ProcessEvent(ByVal eventRaised As System.Web.Management.WebBaseEvent)

 MyBase.ProcessEvent(eventRaised)
End Sub

Public Overrides Sub ProcessEventFlush(ByVal flushInfo As System.Web.Management.WebEventBufferFlushInfo)


End Sub

Public Overrides Sub Shutdown()
 Me.Flush()
End Sub

End Class

And the web.config is as follows.

     <healthMonitoring enabled="true" heartbeatInterval="100" >
  <providers>
   <add name="DBSExceptionProvider" type="SQLApplicationExceptionProvider" buffer="true" bufferMode="RegularNotification" />
  </providers>
  <rules>
   <add name="DBSErrors" eventName="All Errors" provider="DBSExceptionProvider" profile="Critical" />
  </rules>
  <bufferModes>
   <add name="RegularNotification"
    maxBufferSize="10"
    maxFlushSize="5"
    urgentFlushThreshold="2"
    regularFlushInterval="Infinite"
    urgentFlushInterval="00:00:30" />
  </bufferModes>
  <profiles>
   <add name="Default" minInstances="1" maxLimit="Infinite" minInterval="00:01:00" />
   <add name="Critical" minInstances="1" maxLimit="Infinite" minInterval="00:00:00" />
  </profiles>


 </healthMonitoring>

Whenever I try to compile, I get this error:

Error 2 Could not load type 'SQLApplicationExceptionProvider'. Path\web.config 90

For the life of me, I cannot understand why it does not compile. I considered using the full name of the Type (even though it should not be required) but since this is a WebSite (and not a web application) I am not sure what that type would be.

Any suggestions?

Answer 1

I suggest that you not use web site "projects", except for simple web sites. This is probably an issue with your class being in a namespace you didn't expect it to be in. Such issues often arise with web site "projects".

Answer 2

I know this might sound weird, but I've had this problem before and to fix it I had to remove (or comment out) the "problem" section from my web.config file (in your case the healthmonitoring section), build the website, add the "problem" section back, and build again.

Oddly works for me...

Answer 3

have you configured your config file to accept your handler?

I.E. added a section entry to your configSections collection at the top of the web.config file.

<configSections>
    <section name="healthMonitoringSection" type="fully qualified assembly path of handler" />
</configSections>