【转】Image + ActionLink = Html.ImageActionLink

  1 using System;
  2 using System.Collections.Generic;
  3 using System.Web.Mvc;
  4 using System.ComponentModel;
  5
  6 namespace OPC.Models.Helpers
  7 {
  8     public static class ImageActionLinkExtension
  9     {
 10         public static MvcHtmlString ImageActionLink(
 11             this HtmlHelper helper,
 12             string imageUrl,
 13             string altText,
 14             string actionName,
 15             string controllerName,
 16             object routeValues,
 17             object linkHtmlAttributes,
 18             object imgHtmlAttributes)
 19         {
 20             var linkAttributes = AnonymousObjectToKeyValue(linkHtmlAttributes);
 21             var imgAttributes = AnonymousObjectToKeyValue(imgHtmlAttributes);
 22             var imgBuilder = new TagBuilder("img");
 23             imgBuilder.MergeAttribute("src", imageUrl);
 24             imgBuilder.MergeAttribute("alt", altText);
 25             imgBuilder.MergeAttributes(imgAttributes, true);
 26             var urlHelper = new UrlHelper(helper.ViewContext.RequestContext, helper.RouteCollection);
 27             var linkBuilder = new TagBuilder("a");
 28             linkBuilder.MergeAttribute("href", urlHelper.Action(actionName, controllerName, routeValues));
 29             linkBuilder.MergeAttributes(linkAttributes, true);
 30             var text = linkBuilder.ToString(TagRenderMode.StartTag);
 31             text += imgBuilder.ToString(TagRenderMode.SelfClosing);
 32             text += linkBuilder.ToString(TagRenderMode.EndTag);
 33             return MvcHtmlString.Create(text);
 34         }
 35
 36         public static MvcHtmlString ImageActionLink(
 37             this HtmlHelper helper,
 38             string imageUrl,
 39             string altText,
 40             string actionName,
 41             object routeValues,
 42             object imgHtmlAttributes)
 43         {
 44             var imgAttributes = AnonymousObjectToKeyValue(imgHtmlAttributes);
 45             var imgBuilder = new TagBuilder("img");
 46             imgBuilder.MergeAttribute("src", imageUrl);
 47             imgBuilder.MergeAttribute("alt", altText);
 48             imgBuilder.MergeAttributes(imgAttributes, true);
 49             var urlHelper = new UrlHelper(helper.ViewContext.RequestContext, helper.RouteCollection);
 50             var linkBuilder = new TagBuilder("a");
 51             linkBuilder.MergeAttribute("href", urlHelper.Action(actionName, routeValues));
 52             var text = linkBuilder.ToString(TagRenderMode.StartTag);
 53             text += imgBuilder.ToString(TagRenderMode.SelfClosing);
 54             text += linkBuilder.ToString(TagRenderMode.EndTag);
 55             return MvcHtmlString.Create(text);
 56         }
 57
 58         public static MvcHtmlString ImageActionLink(
 59             this HtmlHelper helper,
 60             string imageUrl,
 61             string altText,
 62             string actionName,
 63             object routeValues)
 64         {
 65             var imgBuilder = new TagBuilder("img");
 66             imgBuilder.MergeAttribute("src", imageUrl);
 67             imgBuilder.MergeAttribute("alt", altText);
 68             var urlHelper = new UrlHelper(helper.ViewContext.RequestContext, helper.RouteCollection);
 69             var linkBuilder = new TagBuilder("a");
 70             linkBuilder.MergeAttribute("href", urlHelper.Action(actionName, routeValues));
 71             var text = linkBuilder.ToString(TagRenderMode.StartTag);
 72             text += imgBuilder.ToString(TagRenderMode.SelfClosing);
 73             text += linkBuilder.ToString(TagRenderMode.EndTag);
 74             return MvcHtmlString.Create(text);
 75         }
 76
 77         public static MvcHtmlString ImageActionLink(
 78             this HtmlHelper helper,
 79             string imageUrl,
 80             string altText,
 81             string actionName)
 82         {
 83             var imgBuilder = new TagBuilder("img");
 84             imgBuilder.MergeAttribute("src", imageUrl);
 85             imgBuilder.MergeAttribute("alt", altText);
 86             var urlHelper = new UrlHelper(helper.ViewContext.RequestContext, helper.RouteCollection);
 87             var linkBuilder = new TagBuilder("a");
 88             linkBuilder.MergeAttribute("href", urlHelper.Action(actionName));
 89             var text = linkBuilder.ToString(TagRenderMode.StartTag);
 90             text += imgBuilder.ToString(TagRenderMode.SelfClosing);
 91             text += linkBuilder.ToString(TagRenderMode.EndTag);
 92             return MvcHtmlString.Create(text);
 93         }
 94
 95         private static Dictionary<string, object> AnonymousObjectToKeyValue(object anonymousObject)
 96         {
 97             var dictionary = new Dictionary<string, object>();
 98             if (anonymousObject != null)
 99             {
100                 foreach (PropertyDescriptor propertyDescriptor in TypeDescriptor.GetProperties(anonymousObject))
101                 {
102                     dictionary.Add(propertyDescriptor.Name, propertyDescriptor.GetValue(anonymousObject));
103                 }
104             }
105             return dictionary;
106         }
107     }
108 }

示例：

@Html.ImageActionLink(Url.Content("~/Content/Images/Icons/edit.png"), "", "Edit", new { id = item.Id }, new { title = "Edit", border = 0, hspace = 2 })
@Html.ImageActionLink(Url.Content("~/Content/Images/Icons/personalDetails.png"), "", "Details", new { id = item.Id }, new { title = "Details", border = 0, hspace = 2 })
@Html.ImageActionLink(Url.Content("~/Content/Images/Icons/delete.png"), "", "Delete", new { id = item.Id }, new { title = "Delete", border = 0, hspace = 2 })

原文地址：http://kitsula.com/Article/Html.ImageActionLink-extension