RadioButtons.ItemsSource 属性

定义

获取或设置用于生成控件内容的对象源。

public:
 property Platform::Object ^ ItemsSource { Platform::Object ^ get(); void set(Platform::Object ^ value); };
IInspectable ItemsSource();

void ItemsSource(IInspectable value);
public object ItemsSource { get; set; }
var object = radioButtons.itemsSource;
radioButtons.itemsSource = object;
Public Property ItemsSource As Object

属性值

Object

Platform::Object

IInspectable

用于生成控件内容的 对象。 默认为 null

示例

此示例显示如何将控件绑定到自定义数据源。

<!-- xmlns:muxc="using:Microsoft.UI.Xaml.Controls -->
 <muxc:RadioButtons Header="Background color"
                    SelectionChanged="BackgroundColor_SelectionChanged"
                    ItemsSource="{x:Bind colorOptionItems}"/>

...

<Border x:Name="ExampleBorder" Width="100" Height="100"/>
public sealed partial class MainPage : Page
{
    // Custom data item.
    public class ColorOptionDataModel
    {
        public string Label { get; set; }
        public SolidColorBrush ColorBrush { get; set; }

        public override string ToString()
        {
            return Label;
        }
    }

    List<ColorOptionDataModel> colorOptionItems;

    public MainPage1()
    {
        this.InitializeComponent();

        colorOptionItems = new List<ColorOptionDataModel>();
        colorOptionItems.Add(new ColorOptionDataModel()
            { Label = "Red", ColorBrush = new SolidColorBrush(Colors.Red) });
        colorOptionItems.Add(new ColorOptionDataModel()
            { Label = "Green", ColorBrush = new SolidColorBrush(Colors.Green) });
        colorOptionItems.Add(new ColorOptionDataModel()
            { Label = "Blue", ColorBrush = new SolidColorBrush(Colors.Blue) });
    }

    private void BackgroundColor_SelectionChanged(object sender, SelectionChangedEventArgs e)
    {
        var option = e.AddedItems[0] as ColorOptionDataModel;
        ExampleBorder.Background = option?.ColorBrush;
    }
}

注解

有关详细信息、设计指南和代码示例,请参阅 单选按钮

有关 ItemsSource 属性的行为的详细信息,请参阅 ItemsControl.ItemsSource

适用于

另请参阅