我可以像使用Html.ActionLink一样使用asp:Button吗?

时间:2010-07-04 03:38:55

标签: asp.net asp.net-mvc

我有一个ActionLink:

    <%: Html.ActionLink("MyAction", "MyAction") %>

我想用一个按钮代替。像这样:

    <asp:Button ID="Button1" runat="server" Text="MyAction" />

点击按钮执行与单击ActionLink相同的操作需要做什么?

3 个答案:

答案 0 :(得分:5)

actionlink与webforms中的Hyperlinkbutton或Hyperlink控件相当。它们都在html中呈现标准锚元素。所以是的,如果你想让它看起来像一个按钮,你应该在它上面添加一些css酱。

<%: Html.ActionLink("MyAction", "MyAction", null, new { @class = "button" } %>

并在css文件中:

.button  {
    outline: 0; 
    margin: 0 4px 0 0;
    padding: 0 1em;
    height: 2em;
    text-decoration: none !important; 
    cursor: pointer; 
    position: relative;
    text-align: center;
    display: inline-block;
    background-color:Green;
    border:1px solid Lime;
}
a.button { color:White;}

注意:我是一名开发人员,因此设计方面存在挑战。使用border-left,-right,-bottom和-top可以让它看起来更漂亮。

第一条评论后更新:

对我来说看起来不太好的其他选择是:

<% Using (Html.BeginForm("About", "Home")) {%>

    <input type="submit" value="About" />

<% } %>

或使用Button控件:

<form id="Form1" runat="server">

    <asp:Button runat="server" ID="sfsf" Text ="Go!" PostBackUrl="/Home/About" />

</form>

答案 1 :(得分:0)

我有同样的问题,只是用html写了我想要的东西。

<input type="submit" value="Cancel" onclick="document.location = '/Product/Index'; return false;" />

我本来希望使用type =“button”,但由于使用了不同的样式,我将其设为提交按钮并添加了返回false。

答案 2 :(得分:0)

如果你想要一个真正的Ajax button元素,而不是造型黑客或迷你形式或JQuery,它也可能只需要一些参与。遗憾的是MS尚未选择将ActionButton添加到Html和Ajax帮助程序,因为当您删除重复的私有支持方法时,差异实际上非常小(您只需要ActionButton和{ {1}}方法如下所示。)

最终结果是你可以拥有像ajax动作链接那样触发的真实按钮:

e.g。

GenerateButton

1。创建AjaxHelper扩展

以下代码基于AjaxExtensions类的反编译,因为许多必需的帮助方法未在HtmlHelper上公开。

@Ajax.ActionButton("Delete", "Delete", "document", 
     new { id = ViewBag.Id }, 
     new AjaxOptions() 
     { 
         Confirm="Do you really want to delete this file?", 
         HttpMethod = "Get", 
         UpdateTargetId = "documentlist" }, 
         new { id = "RefreshDocuments" 
     })

2。修改jquery.unobtrusive-ajax.js

jQuery jQuery junery.unobtrusive-ajax.js只需要进行一些小的更改就可以接受新的按钮对象,因为它非常接近开始。首先,选择器需要接受按钮和链接,然后href需要来自一个属性,因此非链接可以提供它(不是严格的浏览器兼容,但现在可以工作)。

public static partial class AjaxExtensions
{
    public static MvcHtmlString ActionButton(this AjaxHelper ajaxHelper, string buttonText, string actionName, string controllerName, object routeValuesBlah, AjaxOptions ajaxOptions, object htmlAttributesBlah)
    {
        // Convert generic objects to specific collections
        RouteValueDictionary routeValues = new RouteValueDictionary(routeValuesBlah);
        RouteValueDictionary htmlAttributes = HtmlHelper.AnonymousObjectToHtmlAttributes(htmlAttributesBlah);

        if (string.IsNullOrEmpty(buttonText))
            throw new ArgumentException("Button text must be provided");
        string targetUrl = UrlHelper.GenerateUrl((string)null, actionName, controllerName, routeValues, ajaxHelper.RouteCollection, ajaxHelper.ViewContext.RequestContext, true);
        return MvcHtmlString.Create(GenerateButton(ajaxHelper, buttonText, targetUrl, AjaxExtensions.GetAjaxOptions(ajaxOptions), htmlAttributes));
    }

    public static string GenerateButton(AjaxHelper ajaxHelper, string linkText, string targetUrl, AjaxOptions ajaxOptions, IDictionary<string, object> htmlAttributes)
    {
        TagBuilder tagBuilder = new TagBuilder("input");
        tagBuilder.MergeAttribute("value", linkText);
        tagBuilder.MergeAttributes<string, object>(htmlAttributes);
        tagBuilder.MergeAttribute("href", targetUrl);
        tagBuilder.MergeAttribute("type", "button");
        if (ajaxHelper.ViewContext.UnobtrusiveJavaScriptEnabled)
            tagBuilder.MergeAttributes<string, object>(ajaxOptions.ToUnobtrusiveHtmlAttributes());
        else
            tagBuilder.MergeAttribute("onclick", AjaxExtensions.GenerateAjaxScript(ajaxOptions, "Sys.Mvc.AsyncHyperlink.handleClick(this, new Sys.UI.DomEvent(event), {0});"));
        return tagBuilder.ToString(TagRenderMode.Normal);
    }

    private static string GenerateAjaxScript(AjaxOptions ajaxOptions, string scriptFormat)
    {
        string str = ajaxOptions.ToJavascriptString();
        return string.Format((IFormatProvider)CultureInfo.InvariantCulture, scriptFormat, new object[1] { str });
    }

    private static AjaxOptions GetAjaxOptions(AjaxOptions ajaxOptions)
    {
        if (ajaxOptions == null)
            return new AjaxOptions();
        else
            return ajaxOptions;
    }

    public static string ToJavascriptString(this AjaxOptions ajaxOptions)
    {
        StringBuilder stringBuilder = new StringBuilder("{");
        stringBuilder.Append(string.Format((IFormatProvider)CultureInfo.InvariantCulture, " insertionMode: {0},", new object[1]
        {
             ajaxOptions.InsertionModeString()
        }));
        stringBuilder.Append(ajaxOptions.PropertyStringIfSpecified("confirm", ajaxOptions.Confirm));
        stringBuilder.Append(ajaxOptions.PropertyStringIfSpecified("httpMethod", ajaxOptions.HttpMethod));
        stringBuilder.Append(ajaxOptions.PropertyStringIfSpecified("loadingElementId", ajaxOptions.LoadingElementId));
        stringBuilder.Append(ajaxOptions.PropertyStringIfSpecified("updateTargetId", ajaxOptions.UpdateTargetId));
        stringBuilder.Append(ajaxOptions.PropertyStringIfSpecified("url", ajaxOptions.Url));
        stringBuilder.Append(ajaxOptions.EventStringIfSpecified("onBegin", ajaxOptions.OnBegin));
        stringBuilder.Append(ajaxOptions.EventStringIfSpecified("onComplete", ajaxOptions.OnComplete));
        stringBuilder.Append(ajaxOptions.EventStringIfSpecified("onFailure", ajaxOptions.OnFailure));
        stringBuilder.Append(ajaxOptions.EventStringIfSpecified("onSuccess", ajaxOptions.OnSuccess));
        --stringBuilder.Length;
        stringBuilder.Append(" }");
        return ((object)stringBuilder).ToString();
    }

    public static string InsertionModeString(this AjaxOptions ajaxOptions)
    {
        switch (ajaxOptions.InsertionMode)
        {
            case InsertionMode.Replace:
                return "Sys.Mvc.InsertionMode.replace";
            case InsertionMode.InsertBefore:
                return "Sys.Mvc.InsertionMode.insertBefore";
            case InsertionMode.InsertAfter:
                return "Sys.Mvc.InsertionMode.insertAfter";
            default:
                return ((int)ajaxOptions.InsertionMode).ToString((IFormatProvider)CultureInfo.InvariantCulture);
        }
    }

    public static string EventStringIfSpecified(this AjaxOptions ajaxOptions, string propertyName, string handler)
    {
        if (string.IsNullOrEmpty(handler))
            return string.Empty;
        return string.Format((IFormatProvider)CultureInfo.InvariantCulture, " {0}: Function.createDelegate(this, {1}),",
            new object[2]
              {
                propertyName,
                handler
              });
    }

    public static string PropertyStringIfSpecified(this AjaxOptions ajaxOptions, string propertyName, string propertyValue)
    {
        if (string.IsNullOrEmpty(propertyValue))
            return string.Empty;
        string str = propertyValue.Replace("'", "\\'");
        return string.Format((IFormatProvider)CultureInfo.InvariantCulture, " {0}: '{1}',",
            new object[2]
              {
                propertyName,
                str
              });
    }
}

*注意:这是在回答日期使用最新版本的所有内容(MVC 5)

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