如何使用互动：对DatePicker的Interaction.Triggers [英] How do I use Interactivity:Interaction.Triggers on DatePicker

问题描述

我想绑定SelectedDateChanged的命令，所以我可以把它放在我的视图模型内，但nomatter什么，然后它不会接受这个code

http://pastebin.com/T4q8hQBA

 ＆LT; D​​atePicker的名称=HistoryDateTimeGrid.Column =1Grid.Row =0的Horizo​​ntalAlignment =中心DisplayDateStart ={绑定路径=起始日期}DisplayDateEnd ={绑定路径=结束日期}SelectedDate ={绑定路径= SelectedDate}＆GT;
＆LT;交互：Interaction.Triggers＆GT;
＆LT;交互：EventTrigger中事件名称=SelectedDateChanged＆GT;
＆LT;助手：InvokeDelegateCommandAction命令={结合DataContext.SaveKategorieCommand，的ElementName = LayoutRoot}CommandParameter ={结合}/＆GT;
＆LT; /交互性：EventTrigger中＆GT;
＆LT; / DatePicker的＆GT;
 

我知道4号线是错误的，但即使是那些接受行的删除没有，所以我需要包含一个文件或东西互动工作？

这是C＃和WPF不是Silverlight的BTW

解决方案

您可能需要添加到您的命名空间声明下列之一：

<$p$p><$c$c>xmlns:interactivity="clr-namespace:System.Windows.Interactivity;assembly=System.Windows.Interactivity"

和添加的引用 System.Windows.Interactivity 到项目中。

I am trying to bind SelectedDateChanged to a command so I can place it inside my ViewModel but nomatter what then it wont accept this code

http://pastebin.com/T4q8hQBA

<DatePicker Name="HistoryDateTime" Grid.Column="1" Grid.Row="0" HorizontalAlignment="Center" DisplayDateStart="{Binding Path=StartDate}" DisplayDateEnd="{Binding Path=EndDate}" SelectedDate="{Binding Path=SelectedDate}" >
<Interactivity:Interaction.Triggers>
<Interactivity:EventTrigger EventName="SelectedDateChanged" >
<Helpers:InvokeDelegateCommandAction Command="{Binding DataContext.SaveKategorieCommand, ElementName=LayoutRoot}" CommandParameter="{Binding}"/>
</Interactivity:EventTrigger>
</DatePicker>

I know line 4 is wrong but even with that removed none of those lines are accepted, so do I need to include a file or something for Interactivity to work?

This is C# and WPF not silverlight btw

解决方案

You probably need to add to your namespace declaration the following one:

xmlns:interactivity="clr-namespace:System.Windows.Interactivity;assembly=System.Windows.Interactivity"

And add a reference to System.Windows.Interactivity to your project.

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