WPF 前台触发器实时获取当前时间

1.引入命名空间

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1	xmlns:sys="clr-namespace:System;assembly=System.Runtime"

2.显示时间代码

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<StackPanel Orientation="Horizontal" Grid.Row="1" VerticalAlignment="Center" HorizontalAlignment="Left">     <TextBlock FontSize="15" DataContext="{x:Static sys:DateTime.Now}">         <Run Text="{Binding Now,Mode=OneWay,StringFormat={}{0:yyyy年MM月dd日 HH:mm:ss dddd},ConverterCulture=zh-CN}" Name="tb_datetime" Foreground="White"/>     </TextBlock> </StackPanel>

3.添加触发器

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<Window.Triggers>     <EventTrigger RoutedEvent="UserControl.Loaded">         <BeginStoryboard>             <Storyboard>                 <ObjectAnimationUsingKeyFrames Duration="0:0:2"                                        Storyboard.TargetName="tb_datetime"                    Storyboard.TargetProperty="DataContext" RepeatBehavior="Forever">                     <DiscreteObjectKeyFrame Value="{x:Static sys:DateTime.Now}" KeyTime="0:0:0"/>                     <DiscreteObjectKeyFrame Value="{x:Static sys:DateTime.Now}" KeyTime="0:0:1"/>                 </ObjectAnimationUsingKeyFrames>             </Storyboard>         </BeginStoryboard>     </EventTrigger> </Window.Triggers>