我正在使用这些html助手：
/*
* Image Link HTML helper
*/
/// <summary>
/// return image link
/// </summary>
/// <param name="_helper"></param>
/// <param name="_imageUrl">URL for image</param>
/// <param name="_controller">target controller name</param>
/// <param name="_action">target action name</param>
/// <param name="_linkText">anchor text</param>
public static MvcHtmlString ImageLink(this HtmlHelper _helper, string _imageUrl, string _controller,
string _action, string _linkText)
{
return ImageLink(_helper, null, _controller, _action, _linkText, _imageUrl, null, null, null, null);
}
/// <summary>
/// return image link
/// </summary>
/// <param name="_helper"></param>
/// <param name="_imageUrl">URL for image</param>
/// <param name="_controller">target controller name</param>
/// <param name="_action">target action name</param>
/// <param name="_linkText">anchor text</param>
/// <param name="_htmlAttributes">anchor attributes</param>
public static MvcHtmlString ImageLink(this HtmlHelper _helper, string _imageUrl, string _controller,
string _action, string _linkText, object _htmlAttributes)
{
return ImageLink(_helper, null, _controller, _action, _linkText, _imageUrl, null, null, new RouteValueDictionary(_htmlAttributes), null);
}
/// <summary>
/// return image link
/// </summary>
/// <param name="_helper"></param>
/// <param name="_imageUrl">URL for image</param>
/// <param name="_controller">target controller name</param>
/// <param name="_action">target action name</param>
/// <param name="_linkText">anchor text</param>
/// <param name="_htmlAttributes">anchor attributes</param>
/// <param name="_routeValues">route values</param>
public static MvcHtmlString ImageLink(this HtmlHelper _helper, string _imageUrl, string _controller,
string _action, string _linkText, object _htmlAttributes, object _routeValues)
{
return ImageLink(_helper, null, _controller, _action, _linkText, _imageUrl, null, null, new RouteValueDictionary(_htmlAttributes), new RouteValueDictionary(_routeValues));
}
/// <summary>
/// return image link
/// </summary>
/// <param name="_helper"></param>
/// <param name="_id">Id of link control</param>
/// <param name="_controller">target controller name</param>
/// <param name="_action">target action name</param>
/// <param name="_linkText"></param>
/// <param name="_strImageURL">URL for image</param>
/// <param name="_alternateText">Alternate Text for the image</param>
/// <param name="_strStyle">style of the image like border properties, etc</param>
/// <returns></returns>
public static MvcHtmlString ImageLink(this HtmlHelper _helper, string _id, string _controller,
string _action, string _linkText, string _strImageURL,
string _alternateText, string _strStyle)
{
return ImageLink(_helper, _id, _controller, _action, _linkText, _strImageURL, _alternateText, _strStyle, null, null);
}
/// <summary>
/// return image link
/// </summary>
/// <param name="_helper"></param>
/// <param name="_id">Id of link control</param>
/// <param name="_controller">target controller name</param>
/// <param name="_action">target action name</param>
/// <param name="_linkText">anchor text</param>
/// <param name="_strImageURL">URL for image</param>
/// <param name="_alternateText">Alternate Text for the image</param>
/// <param name="_strStyle">style of the image like border properties, etc</param>
/// <param name="_htmlAttributes">html attribues for link</param>
/// <param name="_routeValues"></param>
/// <returns></returns>
public static MvcHtmlString ImageLink(this HtmlHelper _helper, string _id, string _controller,
string _action, string _linkText, string _strImageURL, string _alternateText,
string _strStyle, IDictionary<string, object> _htmlAttributes, RouteValueDictionary _routeValues)
{
// Build the img tag
TagBuilder image = new TagBuilder("img");
image.MergeAttribute("src", VirtualPathUtility.ToAbsolute(_strImageURL));
image.MergeAttribute("alt", _alternateText);
image.MergeAttribute("valign", "middle");
image.MergeAttribute("border", "none");
TagBuilder span = new TagBuilder("span");
// Create tag builder
var anchor = new TagBuilder("a");
var url = new UrlHelper(_helper.ViewContext.RequestContext).Action(_action, _controller, _routeValues);
// Create valid id
anchor.GenerateId(_id);
// Add attributes
//anchor.MergeAttribute("href", "/" + controller + "/" + action); //form target URL
anchor.MergeAttribute("href", url);
anchor.MergeAttribute("class", "actionImage");
if (_htmlAttributes != null)
anchor.MergeAttributes(new RouteValueDictionary(_htmlAttributes));
// place the img tag inside the anchor tag.
if (String.IsNullOrEmpty(_linkText))
{
anchor.InnerHtml = image.ToString(TagRenderMode.Normal);
}
else
{
span.InnerHtml = _linkText;
anchor.InnerHtml = image.ToString(TagRenderMode.Normal) + " " + span.ToString(TagRenderMode.Normal);
}
// Render tag
return MvcHtmlString.Create(anchor.ToString(TagRenderMode.Normal)); //to add </a> as end tag
}
我在那里找到了：
How to render an action link with an image?
它运作正常，但我承认我真的不习惯制作这些，有些东西我不明白。
例如，现在，我的图片上有一个链接，如下所示：
@Html.ImageLink("objectImage", "Object", "Details", null, Model[i].m_ObjThumbnailLink, Model[i].m_ObjName, null, null, null)
你知道，我的控制器中的“详细信息”操作使用了id，所以在这种情况下我需要链接如下：
/Object/Details/1
1表示我可以在此对象中找到的对象ID。但我不知道如何将id传递给对象，因为那里的方法使用了RouteDictionaryValue，我有不知道如何工作，所以我最终得到了这个链接：
/Object/Details
当然，它不起作用。如何将ID或所需数据传递给HtmlHelper以创建实际有效的链接？
答案 0 :(得分：0)
经过多次解决后，我有点想通了！
我不得不改变我的链接：
@Html.ImageLink("objectImage", "Object", "Details", null, Model[i].m_ObjThumbnailLink, Model[i].m_ObjName, null, null, null)
@Html.ImageLink("objectImage", "Object", "Details", null, Model[i].m_ObjThumbnailLink, Model[i].m_ObjName, null, null, new RouteValueDictionary(new { @id = Model[i].m_ObjID}))
...... Annd，完美无缺。但是我仍然不明白什么是RouteValueDictionary，所以请随意发布内容，因为我一定会阅读它们！