(精华)2020年8月19日 ASP.NET MVC 内置扩展控件的使用
页面输出html各种扩展，用法@html.方法名（）
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using System.Web.Routing;
namespace XTShop.MVC5.Utility
{
public static class HtmlExtension
{
///
return MvcHtmlString.Create(builder.ToString(TagRenderMode.SelfClosing));
}
public static MvcHtmlString Image(this HtmlHelper helper, string src, string alt, string title, object htmlAttributes, string defaultClass = "btn btn-default")
{
var builder = new TagBuilder("img");
builder.MergeAttribute("src", src);
builder.MergeAttribute("alt", alt);
builder.MergeAttribute("title", title);
builder.MergeAttribute("class", defaultClass);
builder.MergeAttributes<string, object>(new RouteValueDictionary(htmlAttributes));
return MvcHtmlString.Create(builder.ToString(TagRenderMode.SelfClosing));
}
public static MvcHtmlString Link(this HtmlHelper helper, string href, string linkText, string defaultClass = "btn btn-default")
{
var builder = new TagBuilder("a");
builder.MergeAttribute("href", href);
builder.SetInnerText(linkText);
builder.MergeAttribute("class", defaultClass);
return MvcHtmlString.Create(builder.ToString(TagRenderMode.Normal));
}
public static MvcHtmlString Button(this HtmlHelper helper, string id, string text, string onClick = null)
{
var builder = new TagBuilder("input");
builder.GenerateId(id);
builder.MergeAttribute("type", "button");
builder.MergeAttribute("value", text);
if (!string.IsNullOrWhiteSpace(onClick)) builder.MergeAttribute("onclick", onClick);
builder.MergeAttribute("id", id);
builder.MergeAttribute("name", id);
return MvcHtmlString.Create(builder.ToString());
}
/// 使用方式
@{
ViewBag.Title = "Second_Index";
int i = 10; //多行
}
@{
int j = 10; string x = "Advanced"; } @*单行*@ <!--单行-->
<h2>this is Second Index</h2>
<h3>@ViewBag.Title</h3>
@*<h3>@{
ViewBag.Title}</h3>*@ @*//行内 不能有大括号*@
@if (i > 10)
{
<a href="www.baidu.com"> 这里是一个链接</a>
}
@for (int l = 0; l < 10; l++)
{
@: 这里是一个链接
<a href="www.baidu.com"> 这里是一个链接 @l</a>
}
@{
//1.Html闭合的标签
//2. @: 这里是一个链接
//3.text标签
<text>
欢迎大家来到.Net高级班的Vip课程；
</text>
<h3>你好</h3>
}
@section scripts{
<script>
alert("aaaaaaaaaaaaaaaaaaaa");
</script>
}
@Html.Br()//其他类似
视图引擎扩展：用于不同浏览器展示不同页面
/// 判断访问设备的扩展
/// 自定义jsonRsult扩展
///