CODEWITHSUNDEEP
asp.net-mvchtml-helper
GGO
GGO

Reputation: 2748

EnumDropDownListFor with Enum string value

I have an enum like :

public enum StateEnum
{
    Updated = 0,
    Pending = 1,
    Failed = 2
}

The helper function @Html.EnumDropDownListFor(model => Model.State, "States") is rendering :

<select id="State" name="State">
     <option value="0">Updated</option>
     <option value="1">Pending</option>
     <option value="2">Failed</option>
</select>

My question is : how to have an enum string value in the option value attribute instead of the integer ? Like :

<select id="State" name="State">
     <option value="Updated">Updated</option>
     <option value="Pending">Pending</option>
     <option value="Failed">Failed</option>
</select>

(it would be more user-friendly in the next page Url)

I could rewrite the Html.EnumDropDownListFor function in a htmlhelper extensions, but there is no better solution ?

Upvotes: 1

Views: 1316

Answers (3)

GGO
GGO

Reputation: 2748

With Andy's anwser, i wrote a helper but not sure it's the best way to do that. If any body have a better solution

public static MvcHtmlString EnumDropDownListWithStringFor<TModel, TEnum>(this HtmlHelper<TModel> htmlHelper, Expression<Func<TModel, TEnum>> expression, string optionLabel, object htmlAttributes)
{
    var selectListItem = Enum.GetNames(Nullable.GetUnderlyingType(typeof(TEnum))).Select(p => new SelectListItem() { Value = p, Text = p }).ToList();
    return SelectExtensions.DropDownListFor(htmlHelper, expression, selectListItem, optionLabel, htmlAttributes);
}

Upvotes: 1

adiga
adiga

Reputation: 35222

You can create a SelectList as Andy suggested or you can have a StateString property with a getter like this:

public StateEnum State { get; set; }

public string StateString 
{ 
    get { return State.ToString(); } 
}

or if State is the string property, then bind StateEnum in the EnumDropDownListFor and change model to:

public StateEnum StateEnum { get; set; }

public string State
{ 
    get { return StateEnum.ToString(); } 
}

Upvotes: 1

Andy Nichols
Andy Nichols

Reputation: 3002

You can get all the values of the enum as strings by using Enum.GetNames. You would then pass this list into the model and the dropdown would be created using @Html.DropDownListFor(x => x.Test, new SelectList(Model.Values)).

You can see this in the following fiddle: https://dotnetfiddle.net/ynK4ss

Upvotes: 2

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