3
我试图使用自定义帮助程序,该帮助程序使用在Is there an ASP.NET MVC HtmlHelper for image links?处找到的示例创建链接。将匿名(htmlAttributes)转换为IDictionary在自定义帮助程序时出错
假设这段代码实际上起作用,我不确定问题是什么。我是新来的匿名类型和MVC,所以我假设我失去了明显的东西。
我的代码看起来像这样:
public static string ImageLink(this HtmlHelper htmlHelper, string imgSrc, string alt, string actionName, string controllerName, object imgHtmlAttributes)
{
UrlHelper urlHelper = ((Controller)htmlHelper.ViewContext.Controller).Url;
TagBuilder imgTag = new TagBuilder("img");
imgTag.MergeAttribute("src", imgSrc);
imgTag.MergeAttributes((IDictionary<string, string>)imgHtmlAttributes, true);
string url = urlHelper.Action(actionName, controllerName);
TagBuilder imglink = new TagBuilder("a");
imglink.MergeAttribute("href", url);
imglink.InnerHtml = imgTag.ToString();
return imglink.ToString();
}
视图代码是这样的:
<%= Html.ImageLink("../../imgs/details_icon", "View details", "Details", "Tanque", new { height = "5", width = "5" }) %>
和异常:
Unable to cast object of type '<>f__AnonymousType0`2[System.String,System.String]' to type 'System.Collections.Generic.IDictionary`2[System.String,System.String]'.
这工作,谢谢! – bowlingforfish 2010-06-18 16:52:49
@bowlingforfish:很高兴帮助,你应该接受答案... – 2010-06-18 17:24:25
谢谢你的输入。今天我学到了很好的东西! – 2011-05-06 20:39:26