/// <summary>
/// Synchronously executes the <see cref="T:Microsoft.AspNet.Razor.TagHelpers.TagHelper" /> with the given
/// <paramref name="context" /> and
/// <paramref name="output" />.
/// </summary>
/// <param name="context">Contains information associated with the current HTML tag.</param>
/// <param name="output">A stateful HTML element used to generate an HTML tag.</param>
public override void Process(TagHelperContext context, TagHelperOutput output)
{
// Get list and convert to array (avoiding duplicate enumration)
var items = GenerateListForEnumType().ToArray();
// Get value
var selectedValue = GetValueForMember(EnumValue.GetMember());
// Set selected Item
items.First(i => i.Value == selectedValue).Selected = true;
// Append list items
output.PostContent.AppendHtml(HtmlGeneratorHelper.GenerateGroupsAndOptions(null, items));
}
