Add [HtmlAttributeNotBound] property to indicate that a property should not come from HTML

[NTaylorMullen]

Right now all public get; set; properties on a TagHelper are automatically bound to HTML with no way to opt-out. Adding a [NotBound] attribute (or another attribute name) would enable users to opt-out of TagHelper binding.

Example:

class DivTagHelper : TagHelper
{
    [NotBound]
    public string MyValue { get; set; } // Is not auto-filled and is not expected to be represented in HTML.
}

[yishaigalatzer]

Need a better name :)

[yishaigalatzer]

[HtmlAttribute(true // default)]
[HtmlAttribute(false // do not bind)]
[HtmlAttribute("class")]
public string TheClass { get; set; }

Also remove [Activate]