public static ComponentBuilder <MvcBootstrapConfig <TModel>, CheckedControl> RadioFor <TComponent, TModel, TValue>(
            this BootstrapHelper <MvcBootstrapConfig <TModel>, TComponent> helper, Expression <Func <TModel, TValue> > expression, object value = null)
            where TComponent : Component, ICanCreate <CheckedControl>
        {
            ModelMetadata metadata       = ModelMetadata.FromLambdaExpression(expression, helper.GetConfig().HtmlHelper.ViewData);
            string        expressionText = ExpressionHelper.GetExpressionText(expression);
            string        name           = GetControlName(helper, expressionText);
            string        label          = GetControlLabel(metadata, expressionText);
            string        valueString    = Convert.ToString(value, (IFormatProvider)CultureInfo.CurrentCulture);
            bool          isChecked      = metadata.Model != null && !string.IsNullOrEmpty(name) && string.Equals(metadata.Model.ToString(), valueString, StringComparison.OrdinalIgnoreCase);

            return(helper.Radio(name, label, null, value, isChecked));
        }
        public static ComponentBuilder <MvcBootstrapConfig <TModel>, CheckedControl> RadioFor <TComponent, TModel, TValue>(
            this BootstrapHelper <MvcBootstrapConfig <TModel>, TComponent> helper, Expression <Func <TModel, TValue> > expression, object value = null)
            where TComponent : Component, ICanCreate <CheckedControl>
        {
            ModelMetadata metadata       = ModelMetadata.FromLambdaExpression(expression, helper.GetConfig().HtmlHelper.ViewData);
            string        expressionText = ExpressionHelper.GetExpressionText(expression);
            string        name           = GetControlName(helper, expressionText);
            string        label          = GetControlLabel(metadata, expressionText);
            bool          isChecked      = false;

            if (metadata.Model == null || !bool.TryParse(metadata.Model.ToString(), out isChecked))
            {
                isChecked = false;
            }
            return(helper.Radio(name, label, null, value, isChecked));
        }