我创建了一个自定义行为,我可以将属性传递给很好,目前只是字符串,我的行为大致如下所示:
public class ImageSourceBehavior : Behavior<Image>, INotifyPropertyChanged
{
public static readonly DependencyProperty ImageDirectoryProperty = DependencyProperty.Register("ImageDirectory", typeof(string), typeof(ImageSourceBehavior), new PropertyMetadata(null));
public string ImageDirectory
{
get
{
return (string)GetValue(ImageDirectoryProperty);
}
set
{
SetValue(ImageDirectoryProperty, value);
}
}
public static readonly DependencyProperty ImageExtensionProperty = DependencyProperty.Register("ImageExtension", typeof(string), typeof(ImageSourceBehavior), new PropertyMetadata(null));
public string ImageExtension
{
get
{
return (string)GetValue(ImageExtensionProperty);
}
set
{
SetValue(ImageExtensionProperty, value);
}.............
}
我可以将它与标准字符串一起使用,如下所示:
<Image x:Name="flag" Stretch="Uniform" MaxWidth="150" MaxHeight="150">
<i:Interaction.Behaviors>
<infrastructure:ImageSourceBehavior ImageDirectory="/Theme_External;component/Media/Images/Flags/" ImageExtension=".png" ImageNameWithoutExtension="some test text" />
</i:Interaction.Behaviors>
</Image>
我的问题是,如何传入绑定值而不仅仅是一个字符串,如下所示:
<Image x:Name="flag" Stretch="Uniform" MaxWidth="150" MaxHeight="150">
<i:Interaction.Behaviors>
<infrastructure:ImageSourceBehavior ImageDirectory="/Theme_External;component/Media/Images/Flags/" ImageExtension=".png" ImageNameWithoutExtension="{Binding Path=.}" />
</i:Interaction.Behaviors>
</Image>
当我尝试这个时,我只是得到一个 XAML 解析异常,即使绑定是有效的,有什么想法吗?
谢谢你的时间