将多绑定放在xaml中的单行上

Question

有没有办法采取这种多重绑定:

<TextBox.IsEnabled>
    <MultiBinding Converter="{StaticResource LogicConverter}">
        <Binding ElementName="prog0_used" Path="IsEnabled" />
        <Binding ElementName="prog0_used" Path="IsChecked" />
    </MultiBinding>
</TextBox.IsEnabled>

并且放在一条线上,如同<TextBox IsEnabled="" />？

如果是这样,我在哪里可以学习这种格式的规则？

Answer 1

更好(和更简单)的方法是将样式定义为可以轻松应用于任何TextBox的资源:

<Window.Resources>
    <c:MyLogicConverter x:Key="LogicConverter" />

    <Style TargetType="{x:Type TextBox}" BasedOn="{StaticResource {x:Type TextBox}}" x:Key="MultiBound">
        <Setter Property="IsEnabled">
            <Setter.Value>
                <MultiBinding Converter="{StaticResource LogicConverter}">
                    <Binding ElementName="switch" Path="IsEnabled" />
                    <Binding ElementName="switch" Path="IsChecked" />
                </MultiBinding>
            </Setter.Value>
        </Setter>
    </Style>
</Window.Resources>

<StackPanel Orientation="Horizontal">
    <CheckBox Name="switch" />
    <TextBox Name="textBox2" Text="Test" Style="{StaticResource MultiBound}" />
</StackPanel>

Answer 2

这可以通过自定义标记扩展来完成：

public class MultiBinding : System.Windows.Data.MultiBinding
{
    public MultiBinding (BindingBase b1, BindingBase b2)
    {
        Bindings.Add(b1);
        Bindings.Add(b2);
    }

    public MultiBinding (BindingBase b1, BindingBase b2, BindingBase b3)
    {
        Bindings.Add(b1);
        Bindings.Add(b2);
        Bindings.Add(b3);
    }

    // Add more constructors if you need.
}

用法：

<TextBox IsEnabled="{local:MultiBinding
    {Binding IsEnabled, ElementName=prog0_used},
    {Binding IsChecked, ElementName=prog0_used},
    Converter={StaticResource LogicConverter}}">