Скачать или смотреть How to Attach the Debugger to IIS Instead of the ASP.NET Development Server

Learn how to easily configure your ASP.NET project to attach the debugger to `IIS` instead of the default ASP.NET Development Server. Unlock your development potential today!
---
This video is based on the question https://stackoverflow.com/q/210250/ asked by the user 'makstaks' ( https://stackoverflow.com/u/1100768/ ) and on the answer https://stackoverflow.com/a/210252/ provided by the user 'StingyJack' ( https://stackoverflow.com/u/16391/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

Visit these links for original content and any more details, such as alternate solutions, comments, revision history etc. For example, the original title of the Question was: How do I attach the debugger to IIS instead of ASP.NET Development Server?

Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l...
The original Question post is licensed under the 'CC BY-SA 2.5' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 3.0' ( https://creativecommons.org/licenses/... ) license.

If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com.
---
How to Attach the Debugger to IIS Instead of the ASP.NET Development Server

When developing an ASP.NET application, you might find yourself wanting to use Internet Information Services (IIS) for a more realistic testing environment. By default, when you press F5 in Visual Studio, it attaches the debugger to the ASP.NET Development Server. This can be an issue if you need to test specific features or configurations that are only available when running under IIS.

Let’s walk through the steps needed to configure your ASP.NET project to attach the debugger to IIS instead.

Step 1: Open Project Properties

Access Project Properties: In Visual Studio, locate the Solution Explorer. Right-click on your project and select "Properties" from the context menu.

Navigate to the Web Tab: In the properties window, find the "Web" tab on the left-hand side. This tab contains settings that determine how your project runs.

Step 2: Configure to Use IIS

Select IIS Option: Within the Web tab, look for the setting that allows you to choose between the ASP.NET Development Server and IIS. Select the option for "IIS". This option configures your application to run in the Internet Information Services environment.

Initiate IIS Application: By selecting this configuration, Visual Studio will automatically start an instance of your application in IIS and attach the debugger to it. This means you will now be able to debug your application as it runs under IIS.

Step 3: Attaching to an Existing IIS Instance

If you prefer to attach the debugger to an already running instance of your application in IIS (instead of starting a new instance), you can do this easily:

Open Debug Menu: In the Visual Studio menu bar, go to the "Debug" menu.

Attach to Process: Select the "Attach to Process" option. This will open a window where you can see all currently running processes.

Select the IIS Process: Look for the process named w3wp.exe, which is the worker process for IIS. Select it and click the "Attach" button.

Debug Your Application: Now, you can start debugging your existing IIS application without needing to restart it or affect its current state.

Conclusion

By configuring your project properties to run under IIS instead of the ASP.NET Development Server, you can create a more accurate testing environment for your ASP.NET applications. This adjustment not only improves your debugging capabilities, but it also helps ensure that your application behaves correctly in a production-like scenario.

If you need to debug an already running instance of your application, simply attach to the w3wp.exe process — this flexibility can make your development process much more efficient.

Now, you’re all set to maximize the efficiency of your development workflow! Happy debugging!