public static MvcHtmlString DynamicRequiredSymbol(this HtmlHelper htmlHelper, object viewData = null, bool required = true, bool readOnly = false, string symbol = "*", string message = "Esse campo é obrigatório!", string cssClass = "req editor-field-required")
{
if (required && !readOnly)
{
var builder = new TagBuilder("sup");
builder.AddCssClass(cssClass);
builder.AddInputAttributeStaticValue("style", "color:red");
builder.AddInputAttributeStaticValue("title", message);
builder.InnerHtml = symbol;
return(new MvcHtmlString(builder.ToString(TagRenderMode.Normal)));
}
return(new MvcHtmlString(""));
}