Blazor InputRadio

Question

当我们在InputRadioGroup中时，如何让单选按钮默认选中？这似乎不起作用：

<InputRadio class="mr-1" Name="Selected" Value="@("General")" checked="checked"></InputRadio>

Answer 1

InputRadioGroup 中 @bind-Value="@_model.SelectedManufacturer" 的值设置组的值，下面的代码将在开始时将选定的单选按钮设置为特斯拉，因为这就是它被设置为在 FormClass

<EditForm Model="_model">
    <InputRadioGroup @bind-Value="@_model.SelectedManufacturer">
        Manufacturer:
        <br>
        @foreach (var manufacturer in Manufacturers)
        {
            <InputRadio Value="manufacturer" />
            @manufacturer
            <br>
        }
    </InputRadioGroup>
</EditForm>


@code {

   List<String> Manufacturers = new List<string> { "Ford", "Toyota", "Tesla" };

   FormClass _model = new FormClass();

   class FormClass
    {
      public  String SelectedManufacturer { get; set; } = "Tesla";
    }
}