Discussion: TagHelpers understand enum typed attributes better.

[NTaylorMullen]

TagHelpers now better understand enum values. This will break pre-existing MVC applications that have TagHelpers who have enum based attributes.

A great example of this is the validation summary TagHelper added by Microsoft.AspNet.Mvc.TagHelpers. Examples using this TagHelper are below.

Before

<div asp-validation-summary="ValidationSummary.All">...</div>

@{
    var valSummary = ValidationSummary.ModelOnly;
}
<div asp-validation-summary="valSummary">...</div>

After

<div asp-validation-summary="All">...</div>

@{
    var valSummary = ValidationSummary.ModelOnly;
}
<div asp-validation-summary="@valSummary">...</div>

Here is the issue that tracked the work.