CODEWITHSUNDEEP
asp.netvisual-studioiis
juergen d
juergen d

Reputation: 204924

ASP.NET App Debug: Breakpoint currently not hit

I want to debug a ASP.NET application (Custom IHttpHandler) with Visual Studio 2008 and IIS7.

I compile the source, start debugging (F5) and IE loads. But my breakpoint (in method ProcessRequest()) is disabled. I get the error:

The breakpoint will not currently be hit. No symbols have been loaded for this document.

I have no idea about ASP.NET programming. Do i have to set anything in IIS?

The PDB files are there. I wanted to check the symbol load status of my DLL but I couldn't find it.

When I open "Debug->Windows->Modules" I can't see my DLL in the list.
Only Windows DLLs and assemlies from GAC and so on.

Am I missing something?

Upvotes: 2

Views: 5897

Answers (5)

Paul Wendler
Paul Wendler

Reputation: 335

For the archive: a breakpoint is only activated, once the corresponding assembly was loaded in the process space. So in order to enable a breakpoint which was set on a code line inside a DLL, you must run your app to the place, where the DLL is loaded. The breakpoint will than get recognized by the debugger and ungrayed in VS.

Upvotes: 3

juergen d
juergen d

Reputation: 204924

Solved it.

I had to open a page with an specific file ending while debugging. As soon as I opened the right page my DDL loaded and the breakpoint activated.

Upvotes: 1

Samuel Jack
Samuel Jack

Reputation: 33300

The problem for me turned out to be that the Properties->Build->Optimize code checkbox had been turned on in the Debug configuration. Turned it off, rebuilt, and debugging worked as normal.

Upvotes: 2

mika
mika

Reputation: 6972

Have you registered the HttpHandler in the <system.web> section instead of <system.webServer>?

In web.config:

<system.web>
    ...
    <httpHandlers>
        <add verb="GET" path="MyHandler.ashx" type="MyHandler, MyAssembly" />
    ...
    </httpHandlers>
</system.web>

See Also

Upvotes: 1

Denis Biondic
Denis Biondic

Reputation: 8211

Visual Studio -> Debug -> Attach to process

w3wp.exe

More info here: http://www.codeproject.com/KB/aspnet/ProcessAttache.aspx

Upvotes: 3

Related Questions