本文介绍了datatrigger绑定到viewmodel属性的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我正在尝试创建一个简单的样式数据触发器,该触发器将其绑定值从viewmodel属性中拉出,如下所示:
I'm trying to create a simple style data trigger that pulls it's binding value from a viewmodel property, as you can see below:
<StackPanel Name="stackTextPanel" Orientation="Horizontal" Margin="0,8,0,0"> <StackPanel.Style> <Style TargetType="{x:Type StackPanel}"> <Style.Triggers> <DataTrigger Binding="{Binding QuickDrawBarPinned}" Value="False"> <Setter Property="Margin" Value="0,8,0,0" /> </DataTrigger> <DataTrigger Binding="{Binding QuickDrawBarPinned}" Value="True"> <Setter Property="Margin" Value="0,48,0,0" /> </DataTrigger> </Style.Triggers> </Style> </StackPanel.Style>我也尝试过变种
Binding="{Binding Path=QuickDrawBarPinned}"但是当我按下更改 QuickDrawBarPinned 属性的按钮时,这仍然不起作用吗?
but this is still not working when I press the button that changes the QuickDrawBarPinned property what am I doing wrong?
我已经按如下方式实现了该属性:
I've implemented the property as so:
private bool _quickDrawBarPinned = false; /// <summary> /// Indicates if the Quick Draw Bar is pinned (stuck) or unpinned (retractable) /// </summary> public bool QuickDrawBarPinned { get { return _quickDrawBarPinned; } set { _quickDrawBarPinned = value; OnPropertyChanged("QuickDrawBarPinned"); } }这是实现变更控制的方法
This is the method that implements the change control
public virtual void OnPropertyChanged(string propertyInfo) { App.Current.Dispatcher.BeginInvoke((Action)(() => { if (PropertyChanged != null) { PropertyChanged(this, new PropertyChangedEventArgs(propertyInfo)); } } )); }推荐答案
我认为您必须删除本地样式以获取利润
I think you have to remove to local style for your margin
<StackPanel Name="stackTextPanel" Orientation="Horizontal"> <StackPanel.Style> <Style TargetType="{x:Type StackPanel}"> <Setter Property="Margin" Value="0,8,0,0" /> <Style.Triggers> <DataTrigger Binding="{Binding QuickDrawBarPinned}" Value="False"> <Setter Property="Margin" Value="0,8,0,0" /> </DataTrigger> <DataTrigger Binding="{Binding QuickDrawBarPinned}" Value="True"> <Setter Property="Margin" Value="0,48,0,0" /> </DataTrigger> </Style.Triggers> </Style> </StackPanel.Style>更多推荐
datatrigger绑定到viewmodel属性
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