多值绑定

代码

  <Grid>
        <Grid.Resources>
            <local:MultipleBoolConverter x:Key="MultipleBoolConverter" />
        </Grid.Resources>
        <Grid.RowDefinitions>
            <RowDefinition Height="*" />
            <RowDefinition Height="*" />
            <RowDefinition Height="*" />
        </Grid.RowDefinitions>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="*" />
            <ColumnDefinition Width="*" />
            <ColumnDefinition Width="*" />
        </Grid.ColumnDefinitions>
        <CheckBox
            x:Name="chkbox1"
            Grid.Row="1"
            Grid.Column="1"
            HorizontalAlignment="Left"
            VerticalAlignment="Top"
            Content="条件 1" />
        <CheckBox
            x:Name="chkbox2"
            Grid.Row="1"
            Grid.Column="2"
            HorizontalAlignment="Left"
            VerticalAlignment="Top"
            Content="条件 2" />
        <CheckBox
            Grid.Row="2"
            Grid.Column="1"
            Content="结果"
            IsHitTestVisible="false">
            <CheckBox.IsChecked>
                <MultiBinding Converter="{StaticResource MultipleBoolConverter}">
                    <Binding ElementName="chkbox1" Path="IsChecked" />
                    <Binding ElementName="chkbox2" Path="IsChecked" />
                </MultiBinding>
            </CheckBox.IsChecked>
        </CheckBox>
    </Grid>

    public class MultipleBoolConverter : IMultiValueConverter
    {
        public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture)
        {
            var b1 = (bool)values[0];
            var b2 = (bool)values[1];
            return b1 && b2;
        }
        public object[] ConvertBack(object value, Type[] targetTypes, object parameter, CultureInfo culture)
        {
            throw new NotImplementedException();
        }
    }

效果