签名必须是
public static MvcHtmlString FieldFor<TModel, TValue>(this HtmlHelper<TModel> helper, Expression<Func<TModel, TValue>> expression)
然后，您可以结合使用TagBuilder和内置的html helper方法来生成html
using System;
using System.Linq.Expressions;
using System.Text;
using System.Web.Mvc;
using System.Web.Mvc.Html;
namespace YourAssembly.Html
{
public static class FieldHelper
{
public static MvcHtmlString FieldFor<TModel, TValue>(this HtmlHelper<TModel> helper, Expression<Func<TModel, TValue>> expression)
{
MvcHtmlString label = LabelExtensions.LabelFor(helper, expression, new { @class = "control-label col-md-2" });
MvcHtmlString editor = EditorExtensions.EditorFor(helper, expression, new { htmlAttributes = new {@class = "form-control"}})
MvcHtmlString validation = ValidationExtensions.ValidationMessageFor(helper, expression, null, new { @class = "text-danger" });
StringBuilder html = new StringBuilder();
html.Append(editor);
html.Append(validation);
TagBuilder innerDiv = new TagBuilder("div");
innerDiv.AddCssClass("col-md-10");
innerDiv.InnerHtml = html.ToString();
html = new StringBuilder();
html.Append(label);
html.Append(innerDiv.ToString());
TagBuilder outerDiv = new TagBuilder("div");
outerDiv.AddCssClass("form-group");
outerDiv.InnerHtml = html.ToString();
return MvcHtmlString.Create(outerDiv.ToString());
}
}
}
<system.web.webPages.razor>
<pages pageBaseType="System.Web.Mvc.WebViewPage">
<namespaces>
<add namespace="System.Web.Mvc" />
....
<add namespace="YourAssembly.Html" />
</namespaces>
602392714
清零编程群