可能是一个菜鸟问题,但如何在datatrigger中找到我的Control的DataContext ...?我无法绑定到文本属性,因为Stringformat这不是绑定值...我不想直接绑定到myText,因为此样式应该应用于ResDic并且Textblocks的Bound属性可能会有所不同(也可以是Stringformat)....
实际上我需要比较实际Textblock的边界值...
<TextBlock Text="{Binding myText, StringFormat='This Text is: {0}'}">
<TextBlock.Style>
<Style TargetType="TextBlock">
<Style.Triggers>
<DataTrigger Binding="????"
Value="555">
<Setter Property="Foreground"
Value="Red" />
</DataTrigger>
</Style.Triggers>
</Style>
</TextBlock.Style>
</TextBlock>
BR,Daniel
答案 0 :(得分:1)
文本块的绑定值将是整个值:例如,“此文本为'555'”。我不知道你是否正在寻找这个,但你可以试试这个:
<TextBlock Text="{Binding myText, StringFormat='This Text is: {0}'}" >
<TextBlock.Style>
<Style TargetType="TextBlock">
<Style.Triggers>
<DataTrigger Binding="{Binding RelativeSource={RelativeSource Self}, Path=Text}"
Value="This Text is: 555">
<Setter Property="Foreground"
Value="Red" />
</DataTrigger>
</Style.Triggers>
</Style>
</TextBlock.Style>
</TextBlock>
答案 1 :(得分:0)
没有转换器方法:
<TextBlock>
<TextBlock.Inlines>
<Run Text="This Test is : "/>
<Run x:Name="RunMyText" Text="{Binding myText}"/>
</TextBlock.Inlines>
<TextBlock.Style>
<Style TargetType="TextBlock">
<Setter Property="Foreground" Value="Blue" />
<Style.Triggers>
<DataTrigger Binding="{Binding Text, ElementName=RunMyText}" Value="555">
<Setter Property="Foreground" Value="Red" />
</DataTrigger>
</Style.Triggers>
</Style>
</TextBlock.Style>
</TextBlock>
使用转换器:
public class MyTextConverter : IValueConverter
{
public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
return Int32.Parse(value.ToString());
}
public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
throw new NotImplementedException();
}
}
XAML:
<TextBlock Text="{Binding myText, StringFormat= 'This Text is: {0}'}">
<TextBlock.Resources>
<local:MyTextConverter x:Key="MyTextCnvKey"/>
</TextBlock.Resources>
<TextBlock.Style>
<Style TargetType="TextBlock">
<Style.Triggers>
<DataTrigger Binding="{Binding myText, Converter={StaticResource MyTextCnvKey}}"
Value="555">
<Setter Property="Foreground"
Value="Red" />
</DataTrigger>
</Style.Triggers>
</Style>
</TextBlock.Style>
</TextBlock>