我需要将数据绑定到自定义类中的元素中。我已经通过附加属性将ItemSource作为telerik的ObservableCollection:RadTransitionControl。但是,我需要提供图像成员作为Image控件的源。我尝试了以下方法,但没有成功。
<Grid Background="Black">
<telerik:RadTransitionControl x:Name="radControl" adRotator:AdRotatorExtensions.ItemChangeDelay="0:0:3"
adRotator:AdRotatorExtensions.CurrentSelectedIndex="0"
adRotator:AdRotatorExtensions.IndexChanged="{Binding TopItemCommand, Mode=OneWay}"
adRotator:AdRotatorExtensions.ItemsSource="{Binding Path=ImagePaths}"
VerticalAlignment="Center"
HorizontalAlignment="Center" Width="650">
<telerik:RadTransitionControl.Transition>
<telerik:MotionBlurredZoomTransition />
</telerik:RadTransitionControl.Transition>
<telerik:RadTransitionControl.ContentTemplate>
<DataTemplate>
<Image Source="{Binding Path=ImagePaths.AdImage}" />
</DataTemplate>
</telerik:RadTransitionControl.ContentTemplate>
</telerik:RadTransitionControl>
</Grid>
答案 0 :(得分:1)
ImagePaths
对象已设置为该项的DataContext。这意味着绑定已经指向(可以这么说)对象的一个实例。所以,当你告诉它绑定ImagePaths.AdImage
时,它不知道如何找到你正在寻找的属性。好消息是,你所要做的就是提供对象的路径 - 删除ImagePaths
部分(和点),你应该好好去。
例如......
class something
{
public string someImage {...}
}
<DataTemplate> <!--------- the data context of this item is an instance of
my "something" class, so i need to set the path
to be the property on the object --->
<Image Source="{Binding Path=someImage}" />
</DataTemplate>
here is a very helpful article on debugging bindings in WPF
了解更多信息here is an excellent article on MSDN
here is a datatemplate article from Dr. WPF