Custom model binder for methods with more than one parameter are not documented well enough

[guardrex]

From @arieradle ...

Issue description

Custom model binder for methods with more than one parameter are not documented well enough.
Please refer this question:
https://stackoverflow.com/questions/56883548/custom-model-binder-for-a-webapi-method-with-more-than-one-parameter

Software versions

Check the .NET target framework(s) being used, and include the version number(s).

• [x ] .NET Framework - 462

---

Document Details

⚠ Do not edit this section. It is required for docs.microsoft.com ➟ GitHub issue linking.

• ID: cfb00531-4ac6-8bf6-9bd8-1eed6446397f
• Version Independent ID: ed418d09-6c33-699a-0d48-9aabc99457be
• Content: Custom Model Binding in ASP.NET Core
• Content Source: aspnetcore/mvc/advanced/custom-model-binding.md
• Product: aspnet-core
• Technology: aspnetcore-mvc
• GitHub Login: @ardalis
• Microsoft Alias: riande

[Rick-Anderson]

@serpent5 It looks like I just need to add your SO answer to this doc.

[serpent5]

@Rick-Anderson Would you like me to take a stab at this?

[Rick-Anderson]

@serpent5 yes!

[serpent5]

@Rick-Anderson This article is really old and the sample app targets 1.0 😱, which means it doesn't have any of the more recent API conventions ([ApiController], ControllerBase, etc). Do you know if there's an issue for getting this all updated?

The question I answered was very specific to having the [ApiController] attribute in place, but the document in question doesn't mention [ApiController] so I'm unsure about updating the sample app to include an example that demonstrates the problem. I'm also aware that sample apps are generally being dropped...

[Rick-Anderson]

Upgrading to 2.2 and 3.0 would be ideal

[Rick-Anderson]

See #13529

[Rick-Anderson]

Moved to #16319