MVC4 Custom HtmlHelper

Haven't written a blog for a long time, recently only read blog not write habits very bad ah.

Well, most recent projects have used a lot of forms, many forms have special writing, but there are a lot of duplication in the project, this time if can be encapsulated into htmlhelper will greatly reduce the workload.
Here's a basic usage model, Memo

Using system;using system.collections.generic;using system.linq;using system.linq.expressions;using System.Web;        After the using system.web.mvc;//introduces the following namespaces, it is possible to come out of the view directly @ namespace system.web.mvc{public static class Formhtmlhelper {        Private Const string editorwidth = "100";       Private Const string editorheight = "100"; Give the following method the first argument to this HtmlHelper helper, so you can @ht in//points out, otherwise you have to @[the custom class]. [Your method]. The following method seems to need to pass in two values,//actually as long as the @html. You can order it out. public static mvchtmlstring Necessarylabeler (this htmlhelper helper,st            Ring name) {var ntag = new Tagbuilder ("span"); Ntag.            addCssClass ("Red"); Ntag.            Setinnertext ("*");            var nametag = new Tagbuilder ("span"); Tag.            addCssClass (""); NameTag.            Setinnertext (name); return new Mvchtmlstring (Ntag. ToString () +nametag.        ToString ());        }//The following method can pass the model of the view in, get the value of the method to see the following LAMDA expression ... public static mvchtmlstring Disablededitorfor<tmodel, TValue> (this htmlhelper<tmodel> html, Expression<func<tmodel, tvalue>> Expression) {Obje CT data = Modelmetadata.fromlambdaexpression<tmodel, tvalue> (expression, HTML. ViewData).            Model;            if (data = = null) {data= "";        }//to do want! }            }}