Question

如何检查默认单选按钮是否有条件？以下是我的代码：

枚举

 public enum yesNo
 {
        Yes = 0,
        No = 1
 }

查看

<div class="form-group">
       @Html.LabelFor(model => model.Member_Addiction, new { @class = "  col-md-3" })
       <div class="col-md-4">
             @foreach (var e in Enum.GetValues(typeof(RKDYM.clsEnums.yesNo)))
             {
                   <label class="radio-inline">
                        @Html.RadioButtonFor(model => model.Member_Addiction, (int)e, new { htmlAttributes = new { @class = "form-control"} })@e.ToString()
                   </label>
             }
       </div>
       @Html.ValidationMessageFor(model => model.Member_Addiction)
</div>

模型

[DisplayName("Do you have addiction?")]        
public bool Member_Addiction { get; set; }

Answer 1

在模型的构造函数中设置默认值。我尝试了以下代码并且它可以工作（它设置默认值，如果用户更改值，它会向控制器返回正确的值）。

public enum yesNo
{
    Yes = 0,
    No = 1
}

public class TestModel
{
    public TestModel()
    {
        this.Member_Addiction = false;
    }


    [DisplayName("Do you have addiction?")]        
    public bool Member_Addiction { get; set; }

}


@using (Html.BeginForm())
{
    <div class="form-group">
        @Html.LabelFor(model => model.Member_Addiction, new { @class = "  col-md-3" })
        <div class="col-md-4">
            @foreach (TestProject.Models.yesNo e in Enum.GetValues(typeof(TestProject.Models.yesNo)))
            {
                <label class="radio-inline">
                    @{ if (e == TestProject.Models.yesNo.No)
                       {
                        @Html.RadioButtonFor(model => model.Member_Addiction, false)@e.ToString() 
                       }
                       else
                       {
                        @Html.RadioButtonFor(model => model.Member_Addiction, true)@e.ToString() 
                       }
                    }
                </label>
            }
        </div>
        @Html.ValidationMessageFor(model => model.Member_Addiction)
    </div>
    <button type="submit">OK</button>
}

P.S。也许你可以找到比使用＆＃34更好的溶剂;如果＆＃34;在您的视图中声明。

Answer 2

我已更换以下行

new { htmlAttributes = new { @class = "form-control"} }

与

new { @class = "form-control", @checked = "checked" }

Html.RadioButtonFor默认选中

2 个答案: