Question

我能够把我的数据来源与显示案文的正文联系起来。然而,如果检查箱foo<>/strong>的价值得到核实,我就把“Fontlin”设定为黑体。我试图利用<IMultiValueConverter<>来做到这一点,但迄今没有幸运。任何关于我做什么错误的想法?

<CheckBox Name="foo"/> <TextBlock Name="bar" Text="{Binding Path=Name}"> <TextBlock.FontWeight> <MultiBinding Converter="{StaticResource FontConverter}"> <Binding RelativeSource="{RelativeSource self}" Path="???"/> <Binding ElementName="???" /> </MultiBinding> </TextBlock.FontWeight> </TextBlock>

以及兑换商班(现在总是以黑体返回的硬通布)

Public Class FontConverter Implements IMultiValueConverter Public Function Convert(values() As Object, targetType As System.Type, parameter As Object, culture As System.Globalization.CultureInfo) As Object Implements System.Windows.Data.IMultiValueConverter.Convert Return "Bold" End Function Public Function ConvertBack(value As Object, targetTypes() As System.Type, parameter As Object, culture As System.Globalization.CultureInfo) As Object() Implements System.Windows.Data.IMultiValueConverter.ConvertBack Return nothing End Function End Class

Answer 1

如果你想要使用转换器,那么你应当对<代码>具有约束力。查询Box.Isecked ({Bled IsChecked, ElementName=foo>, 之后在上,在Convert上,将 > 至>>>上,根据该编码,将正常或粗体(最好作为实际编码>/code>,而不是一个编码<<<>>>。



Here however i would recommend a DataTrigger on IsChecked.

e.g.

<TextBlock Text="{Binding Name}">
    <TextBlock.Style>
        <Style TargetType="TextBlock">
            <Style.Triggers>
                <DataTrigger Binding="{Binding IsChecked, ElementName=foo}"
                             Value="true">
                    <Setter Property="FontWeight" Value="Bold"/>
                </DataTrigger >
            </Style.Triggers>
        </Style>
    </TextBlock.Style>
</TextBlock>


(Also note dependency property pre,如果你在当地确定FonWala,触发器将没有任何东西的话)

Answer 2

根据XAML的一项条件进行的任何计算,都应在<条码>上填写。 <代码>在将数值从一个数值转换为另一个数值时,应当使用。

例如:

<CheckBox Name="foo"/>
<TextBlock Name="bar" Text="{Binding Path=Name}">
    <TextBlock.Style>
        <Style TargetType="{x:Type TextBlock}">
            <Setter Property="FontWeight" Value="Normal" />
            <Style.Triggers>
                <DataTrigger Binding="{Binding ElementName=foo, Path=IsChecked}" Value="True">
                    <Setter Property="FontWeight" Value="Bold" />
                </DataTrigger>
            </Style.Triggers>
        </Style>
    </TextBlock.Style>
</TextBlock>

友情链接