public static ComponentBuilder <MvcBootstrapConfig <TModel>, TTag> For <TTag, TModel, TValue>( this ComponentBuilder <MvcBootstrapConfig <TModel>, TTag> builder, Expression <Func <TModel, TValue> > expression, TValue value) where TTag : FormButton { var config = (MvcBootstrapConfig <TModel>)builder.GetConfig(); var html = config.GetHtmlHelper(); var metadata = ModelMetadata.FromLambdaExpression(expression, html.ViewData); string expressionText = ExpressionHelper.GetExpressionText(expression); string name = GetControlName(html, expressionText); string label = GetControlLabel(metadata, expressionText); return(builder .SetName(name) .SetControlLabel(label) .SetValue(value)); }