Why when scaffolding the Movies, does Delete.cshtml.cs have a Movie Property declared with the [BindProperty] attribute

[YSternlicht]

Since the Delete.cshtml.cs has a post method which accepts the id (of the movie) can you explain why the Movie property is decorated with the [BindProperty] attribute?

Another (different yet related) point is, why in the OnPostAsync does it assign movie to Movie and then delete Movie. Why not leave out the assignment and remove movie directly?

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• ID: 6719f08e-3bd7-dc1a-71df-f2ef9fbca9d8
• Version Independent ID: 7096fdb3-612e-9e00-bd0b-8ea4886a09ce
• Content: Part 2, add a model
• Content Source: aspnetcore/tutorials/razor-pages/model.md
• Product: aspnet-core
• Technology: aspnetcore-tutorials
• GitHub Login: @wadepickett
• Microsoft Alias: wpickett

[wadepickett]

Hi @YSternlicht.

The [BindProperty] is introduced and explained not in this model tutorial, but in the scaffolding tutorial.

"The Movie property uses the [BindProperty] attribute to opt-in to model binding. When the Create form posts the form values, the ASP.NET Core runtime binds the posted values to the Movie model."

I will have to look into the 2nd item as I have time, which is also introduced and explained in the scaffolding tutorial, not this model tutorial this issue is on.

[YSternlicht]

I understand that. But I particularly asked why it was used on the Delete.cshtml.cs model where there, it is not needed.