MVC5：枚举单选按钮，标签为displayname [英] MVC5: Enum radio button with label as displayname

问题描述

我有这些枚举

public enum QuestionStart
{
    [Display(Name="Repeat till common match is found")]
    RepeatTillCommonIsFound,

    [Display(Name="Repeat once")]
    RepeatOnce,    

    [Display(Name="No repeat")]
    NoRepeat

}

public enum QuestionEnd
{
    [Display(Name="Cancel Invitation")]
    CancelInvitation,

    [Display(Name="Plan with participants on first available common date")]
    FirstAvailableCommon,

    [Display(Name="Plan with participants on my first available common date")]
    YourFirstAvailableCommon
}

，我有一个帮助类来显示枚举中每个字段的所有单选按钮

and I have a helper class to show all the radiobutton for each field in enum

@model Enum
@foreach (var value in Enum.GetValues(Model.GetType()))
{
    @Html.RadioButtonFor(m => m, value)
    @Html.Label(value.ToString())
    <br/>
}

现在，标签设置为值名称，而不是显示名称i给出价值。

Right now the label is set to the value name and not the display name i have given for values.

例如：

[Display(Name="Cancel Invitation")]
CancelInvitation

我收到 CancelInvitation 旁边。

如何显示我给予的显示名称（取消邀请）？

How can I make it display the Display name(Cancel Invitation) i have given to it?

推荐答案

这里解决方案 -

信用这个非凡的绅士 - ThumNet，他为Enum撰写RadioButtonList作为扩展

步骤1 - 使用 Views / Shared / EditorTemplates 目录中的以下代码（代码来自上面的参考）创建 RadioButtonListEnum.cshtml 文件（if不存在，然后创建该目录） -

Step 1 - Create RadioButtonListEnum.cshtml file with below code (code from above reference) in Views/Shared/EditorTemplates directory (if not exist, then create that directory) -

@model Enum

@{
     // Looks for a [Display(Name="Some Name")] or a [Display(Name="Some Name", ResourceType=typeof(ResourceFile)] Attribute on your enum
    Func<Enum, string> getDescription = en =>
    {
        Type type = en.GetType();
        System.Reflection.MemberInfo[] memInfo = type.GetMember(en.ToString());

        if (memInfo != null && memInfo.Length > 0)
        {

            object[] attrs = memInfo[0].GetCustomAttributes(typeof(System.ComponentModel.DataAnnotations.DisplayAttribute),
                                                            false);

            if (attrs != null && attrs.Length > 0)
                return ((System.ComponentModel.DataAnnotations.DisplayAttribute)attrs[0]).GetName();
        }

        return en.ToString();
    };
    var listItems = Enum.GetValues(Model.GetType()).OfType<Enum>().Select(e =>
    new SelectListItem()
    {
        Text = getDescription(e),
        Value = e.ToString(),
        Selected = e.Equals(Model)
    });
    string prefix = ViewData.TemplateInfo.HtmlFieldPrefix;
    int index = 0;
    ViewData.TemplateInfo.HtmlFieldPrefix = string.Empty;

    foreach (var li in listItems)
    {
        string fieldName = string.Format(System.Globalization.CultureInfo.InvariantCulture, "{0}_{1}", prefix, index++);
        <div class="editor-radio">
        @Html.RadioButton(prefix, li.Value, li.Selected, new { @id = fieldName }) 
        @Html.Label(fieldName, li.Text)    
        </div>
    }
    ViewData.TemplateInfo.HtmlFieldPrefix = prefix;
}

然后有你的枚举 -

Then have your enum -

public enum QuestionEnd
{
    [Display(Name = "Cancel Invitation")]
    CancelInvitation,

    [Display(Name = "Plan with participants on first available common date")]
    FirstAvailableCommon,

    [Display(Name = "Plan with participants on my first available common date")]
    YourFirstAvailableCommon
}

步骤2 - 创建模型 -

public class RadioEnumModel
{
    public QuestionEnd qEnd { get; set; }
}

步骤3 - 创建控制器操作 - / p>

Step 3 - Create Controller Action -

    public ActionResult Index()
    {
        RadioEnumModel m = new RadioEnumModel();
        return View(m);
    }

步骤4 - 创建视图 -

@model MVC.Controllers.RadioEnumModel
@Html.EditorFor(x => x.qEnd, "RadioButtonListEnum")

然后输出将是 -

< img src =https://i.stack.imgur.com/zKP5K.pngalt =在此输入图像说明>

这篇关于MVC5：枚举单选按钮，标签为displayname的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！