public override async Task ProcessAsync(TagHelperContext context, TagHelperOutput output)
{
var helper = new ValidationMessageTagHelper(Generator);
helper.ViewContext = ViewContext;
helper.For = For;
helper.Init(context);
await helper.ProcessAsync(context, output);
string name = For.Name.Substring(For.Name.LastIndexOf('.') + 1).ToLower();
output.Attributes.SetAttribute(":data-valmsg-for", $"`${{id}}.{ name }`");
}
