Razor Components/Blazor access modifiers

[guardrex]

Fixes #11010

😅 Lot's 'o lines ... Took longer than I thought!

• This (mostly) adds the explicit private access modifier.
• I confirmed samps are happy with the updates.
• Checked the Razor Syntax topic. It's 🎷 Jamm'in! 🎸.

👮‍♀️ Inconsistency Alert! 👮 We're using attributes (mostly) on the same line in RC/Blazor topics+samps but nowhere else (i.e., model attributes, attribute routing) in docs+samples.

Inconsistent but short ...

@functions {
    [Parameter] public string MyString { get; set; }
    [Parameter] public string AnotherString { get; set; }

    ...
}

Consistent with docs+samples elsewhere but long ...

@functions {
    [Parameter]
    public string MyString { get; set; }

    [Parameter]
    public string AnotherString { get; set; }

    ...
}

How do u want to play it? cc: @NTaylorMullen - Thoughts?

[NTaylorMullen]

I'll let @danroth27 comment on this one 😄

[danroth27]

@guardrex We should be put the [Parameter] attribute above the property.

[Rick-Anderson]

@danroth27

@guardrex We should be the [Parameter] attribute above the property.

Should that be

@guardrex We should have the [Parameter] attribute above the property.

[guardrex]

... and while ur answering ... add it here? I was about to move on to the EventCallback issue, and I think we should get this reviewed and merged before I dig into that one. I was planning to open a new issue for "[Parameter] on its own line" and work it separately if that's what we're going to do.

[guardrex]

@Rick-Anderson Let's go ahead. The samps run and the changes are fairly straightforward here. I need this one merged in order to get on to the EventCallback issue (aspnet/AspNetCore.Docs #11243).

I opened Razor Components/Blazor [Parameter] attribute (aspnet/AspNetCore.Docs #11913) to deal with [Parameter] on its own line. Will dig into that later.

[danroth27]

Sorry about my typo 😝.

I was trying to say that instead of this:

[Parameter] public string MyString { get; set; }

We should at some point switch to this:

[Parameter]
public string MyString { get; set; }

[guardrex]

@danroth27 Gotcha ... opened #11913 to address it.