用户自定义控件依赖属性Command的绑定

自定义用户控件增加Command依赖属性并绑定

自定义控件 IconButton.cs中增加依赖属性

public ICommand Command
    {
        get => (ICommand)GetValue(CommandProperty);
        set => SetValue(CommandProperty, value);
    }

    public static readonly DependencyProperty CommandProperty =
        DependencyProperty.Register("Command", typeof(ICommand), typeof(IconButton), new PropertyMetadata(null));

<UserControl  x:Class="EasyCode.Controls.IconButton"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    x:Name="me"    >
    <Button Command="{Binding Command,ElementName=me}">Click Me!</Button>
</UserControl>

在父窗口中设置如下绑定:

<my:GreatUserControl Command="{Binding SomeCommand}" />