工作中用到了一组RadioButton对应一组数据的情况,这个时候最好能将一组RadioButton绑定Enum。
步骤
1.MyControl库中Type.cs中定义Enum
namespace MyControl.MyRadioButton
{
public enum Type { A, B, C, }
}
2.MyUseControl的ViewModel文件夹下testViewModel.cs中
private Type m_myType;
public Type MyType
{
get{ return m_myType;}
set
{
if(m_myType != value) { m_myType = value; }
}
}
3.MyUserControl的Converses文件夹下Enum2BoolConverter.cs中
class Enum2BoolConverter : IValueConverter
{
public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
return value == null ? false : value.Equals(parameter);
} public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
return value != null && value.Equals(true) ? parameter : Binding.DoNothing;
}
}
4.在test.xaml文件中需要引用MyControl库
xmlns:locals="clr-namespace:MyControl.MyRadioButton;assembly=MyControl"
<!--引用Converses命名空间-->
xmlns:converter="clr-namespace:MyUseControl.Converters"
<UserControl.Resources>
<converter:Enum2BoolConverter x:Key="enum2BoolConverter" />
</UserControl.Resources>
5.test.xaml文件中RadioButton的IsChecked属性中
IsChecked="{Binding MyType,
Converter={StaticResource enum2BoolConverter},
ConverterParameter={x:Static locals:Type.A}
}"