c# - MVC3 (Razor) 单选按钮检查

Question

首先，我必须在 mvc3 局部 View 中创建一些单选按钮。

当我在屏幕上时，我只需要选择一个单选按钮并检索特定值。

我该怎么做(例如使用 JS 或 C#)？

            <div id="UserDeleteInfosField">
                <p>
                    @Html.RadioButton("HasUserLeave", new { id = "rb1" })
                    @UserAccountResources.UserLeave
                    @Html.HiddenFor(x => x.UserLeave)   
                </p>
                <br />
                <p>
                    @Html.RadioButton("HasUserTransfer", new { id = "rb2" })
                    @UserAccountResources.UserTransfer
                    @Html.HiddenFor(x => x.UserTransfer)   
                </p>
                <br />
                <p>
                    @Html.RadioButton("HasUserDetachment", new { id = "rb3" })
                    @UserAccountResources.UserDetachment
                    @Html.HiddenFor(x => x.UserDetachment)   
                </p>
                <br />
                <p>
                    @Html.RadioButton("HasUserRetirement", new { id = "rb4" })
                    @UserAccountResources.UserRetirement
                    @Html.HiddenFor(x => x.UserRetirement)   
                </p>
                <br />
                <p>
                    @Html.RadioButton("HasUserStatus", new { id = "rb5" })
                    @UserAccountResources.UserStatus
                    @Html.HiddenFor(x => x.UserStatus)   
                </p>
            </div>

提前致谢!

Ars_n

Answer 1

所以你需要一组单选按钮？为此，我使用了自定义助手。

助手代码:

public static MvcHtmlString RadioButtonForSelectList<TModel, TProperty>(
       this HtmlHelper<TModel> htmlHelper,
       Expression<Func<TModel, TProperty>> expression,
       IEnumerable<SelectListItem> listOfValues)
    {
        var metaData = ModelMetadata.FromLambdaExpression(expression, htmlHelper.ViewData);
        var sb = new StringBuilder();

        if (listOfValues != null)
        {
            // Create a radio button for each item in the list 
            foreach (SelectListItem item in listOfValues)
            {
                // Generate an id to be given to the radio button field 
                var id = string.Format("{0}_{1}", metaData.PropertyName, item.Value);

                // Create and populate a radio button using the existing html helpers 
                var label = htmlHelper.Label(id, HttpUtility.HtmlEncode(item.Text));

                var radio = htmlHelper.RadioButtonFor(expression, item.Value, new { id = id }).ToHtmlString();

                if (item.Selected)
                {
                    radio = htmlHelper.RadioButtonFor(expression, item.Value, new { id = id, @checked = "checked", }).ToHtmlString();
                }


                // Create the html string that will be returned to the client 
                // e.g. <input data-val="true" data-val-required="You must select an option" id="TestRadio_1" name="TestRadio" type="radio" value="1" /><label for="TestRadio_1">Line1</label> 
                sb.AppendFormat("<div class=\"RadioButton\">{0}{1}</div>", radio, label);
            }
        }

        return MvcHtmlString.Create(sb.ToString());
    }

现在在您的 View 中您可以使用:

@Html.RadioButtonForSelectList(model => model.yourproperty, Model.listUsedToPopulate)

现在您一次只能选中其中一个单选按钮。选中的值存储在 model.yourproperty 中。