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POHow to make a default editor template for enums?
 

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  1. POHow to make a default editor template for enums?
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    <p>How can I make a default editor template for enums? By which I mean: can I do something like this:</p> <pre><code>&lt;%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl&lt;Enum&gt;" %&gt; &lt;% -- any code to read the enum and write a dropdown --&gt; </code></pre> <p>And put this in the EditorTemplates folder under the name <code>Enum.ascx</code>?</p> <p>Here's a workaround for my problem that I tried, but it's not what I need.</p> <p>Here is my Enum:</p> <pre><code>public enum GenderEnum { /// &lt;summary&gt; /// Male /// &lt;/summary&gt; [Description("Male Person")] Male, /// &lt;summary&gt; /// Female /// &lt;/summary&gt; [Description("Female Person")] Female } </code></pre> <p>I made a template called <code>GenderEnum.acsx</code> and put it in the <code>Shared/EditorTemplates</code> folder. Here is the Template:</p> <pre><code>&lt;%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl&lt;AlefTech.HumanResource.Core.GenderEnum&gt;" %&gt; &lt;%@ Import Namespace="AlefTech.HumanResource.WebModule.Classes" %&gt; &lt;%=Html.DropDownListFor(m =&gt; m.GetType().Name, Model.GetType()) %&gt; </code></pre> <p>Of course the method is my own: </p> <pre><code>public static class HtmlHelperExtension { public static MvcHtmlString DropDownListFor&lt;TModel, TProperty&gt;(this HtmlHelper&lt;TModel&gt; htmlHelper, Expression&lt;Func&lt;TModel, TProperty&gt;&gt; expression, Type enumType) { List&lt;SelectListItem&gt; list = new List&lt;SelectListItem&gt;(); Dictionary&lt;string, string&gt; enumItems = enumType.GetDescription(); foreach (KeyValuePair&lt;string, string&gt; pair in enumItems) list.Add(new SelectListItem() { Value = pair.Key, Text = pair.Value }); return htmlHelper.DropDownListFor(expression, list); } /// &lt;summary&gt; /// return the items of enum paired with its descrtioption. /// &lt;/summary&gt; /// &lt;param name="enumeration"&gt;enumeration type to be processed.&lt;/param&gt; /// &lt;returns&gt;&lt;/returns&gt; public static Dictionary&lt;string, string&gt; GetDescription(this Type enumeration) { if (!enumeration.IsEnum) { throw new ArgumentException("passed type must be of Enum type", "enumerationValue"); } Dictionary&lt;string, string&gt; descriptions = new Dictionary&lt;string, string&gt;(); var members = enumeration.GetMembers().Where(m =&gt; m.MemberType == MemberTypes.Field); foreach (MemberInfo member in members) { var attrs = member.GetCustomAttributes(typeof(DescriptionAttribute), false); if (attrs.Count() != 0) descriptions.Add(member.Name, ((DescriptionAttribute)attrs[0]).Description); } return descriptions; } } </code></pre> <p>However, even though this worked for me, it is not what I'm asking. Instead, I need the following to work:</p> <p>Code for <code>Shared\EditorTemplates\Enum.acsx</code>:</p> <pre><code>&lt;%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl&lt;Enum&gt;" %&gt; &lt;%@ Import Namespace="System.Web.Mvc.Html" %&gt; &lt;%@ Import Namespace="WhereMyExtentionMethod" %&gt; &lt;%=Html.DropDownListFor(m =&gt; m.GetType().Name, Model.GetType()) %&gt; </code></pre> <p>With this I wouldn't have to make a template for every enum any more.</p>
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    1. CODid you still not get this to work? Would you mind posting the code for the helper used here: return htmlHelper.DropDownListFor(expression, list);?
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      1. USYngve B-Nilsen
    2. COBy the way, your code should work if you put [UIHint("Enum")] on your enum-field in your model, change the type System.Web.Mvc.ViewUserControl<Enum> to dynamic, and cast them as the right types in the helper-call :)
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      1. USYngve B-Nilsen
 

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