chi's coding life

1.  在專案新增資料夾新增一個class 
2. using System.Web.MVC
3. 記得改成static class 跟 static method
   ​

   namespace PlantCatalog.HtmlHelpers
   {
       public static class HelperExtendMethods
       {
   
           public static MvcHtmlString DisplayWithBreaksFor<TModel, TValue>(this HtmlHelper<TModel> html, Expression<Func<TModel, TValue>> expression)
           {
               var metadata = ModelMetadata.FromLambdaExpression(expression, html.ViewData);
               var model = html.Encode(metadata.Model).Replace("\r", "").Replace("\n","<br />");
               if (String.IsNullOrEmpty(model)) return MvcHtmlString.Empty; return MvcHtmlString.Create(model);
           }
       }
   }

    

 razor 就可以使用這個擴充方法囉~

 @Html.DisplayWithBreaksFor(model => model.LiveNote)

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參考資料

1. http://www.dovov.com/html-displayfor-3.html
2. https://www.cnblogs.com/insus/p/3379485.html