MVC DropDownListFor视图文本更改中的基本True False

Question

<div class="form-group">
    @Html.LabelFor(model => model.Supervisior, new { @class = "" })
    @Html.EditorFor(model => model.Supervisior, new { @class = "", required = "required", form_id="form1" })
    @Html.ValidationMessageFor(model => model.Supervisior)
</div>

属性Supervisor是一个可以为空的bool

public Nullable<bool> Supervisior { get; set; }

我希望EditorFor()生成的下拉列表的显示名称为true，显示＆＃34;确认＆＃34;以及false，显示＆＃34 ;拒绝＆＃34;