我能够使用 this 并对其进行调整,以便以 MVVM 友好的方式使用它。
我给出了一个使用 Cinch 框架的工作示例。
我锄头这有助于你提出开始的想法。
我的视图模型
public class MyViewModel : INotifyPropertyChanged
{
private static DispatcherTimer myClickWaitTimer =
new DispatcherTimer (
new TimeSpan (0, 0, 0, 0, 150),
DispatcherPriority.Background,
mouseWaitTimer_Tick,
Dispatcher.CurrentDispatcher);
private static void mouseWaitTimer_Tick (object sender, EventArgs e)
{
myClickWaitTimer.Stop ();
Debug.WriteLine ("Single Click Executed");//PerformActionA
}
public ICommand CinchSingleClickCommand { get; private set; }
public ICommand CinchDoubleClickCommand { get; private set; }
public MyViewModel ()
{
CinchSingleClickCommand = new SimpleCommand<object, EventToCommandArgs> (CanExecuteSingleCinch, ExecuteSingleCinch);
CinchDoubleClickCommand = new SimpleCommand<object, EventToCommandArgs> (CanExecuteDoubleCinch, ExecuteDoubleCinch);
myClickWaitTimer.Stop ();
}
private void ExecuteDoubleCinch (EventToCommandArgs obj)
{
if (obj.EventArgs is MouseEventArgs)
{
myClickWaitTimer.Stop ();
Debug.WriteLine ("Double Click Executed");//PerformActionB
var mouseEvent = obj.EventArgs as MouseEventArgs;
mouseEvent.Handled = true;
}
}
private bool CanExecuteDoubleCinch (object arg)
{
return true;
}
private void ExecuteSingleCinch (EventToCommandArgs obj)
{
if (!(obj.EventArgs is MouseEventArgs))
{
myClickWaitTimer.Start ();
var mouseEvent = obj.EventArgs as RoutedEventArgs;
mouseEvent.Handled = true;
}
}
private bool CanExecuteSingleCinch (object arg)
{
return true;
}
public event PropertyChangedEventHandler PropertyChanged;
public void RaisePropertyChanged (string propertyName)
{
var pc = PropertyChanged;
if (pc != null)
pc (this, new PropertyChangedEventArgs (propertyName));
}
}
您可以使用 TimeSpan 构造函数来设置您希望在单击和双击之间保持多少延迟。
观点
<Window x:Class="DataGridTesting.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:i="http://schemas.microsoft.com/expression/2010/interactivity"
xmlns:cinch="clr-namespace:Cinch;assembly=Cinch.WPF"
Title="MainWindow"
Height="350"
Width="525">
<DockPanel>
<Button x:Name="button"
Content="Test">
<i:Interaction.Triggers>
<i:EventTrigger EventName="MouseDoubleClick">
<cinch:EventToCommandTrigger Command="{Binding CinchDoubleClickCommand}" />
</i:EventTrigger>
<i:EventTrigger EventName="Click">
<cinch:EventToCommandTrigger Command="{Binding CinchSingleClickCommand}" />
</i:EventTrigger>
</i:Interaction.Triggers>
</Button>
</DockPanel>
</Window>
视图背后的代码
public partial class MainWindow : Window
{
public MainWindow ()
{
InitializeComponent ();
this.DataContext = new MyViewModel ();
}
}
我使用 Nuget 包管理器为 Cinch、System.Windows.Interactivity 和 Microsoft.Expression.Interactions 提取所需的 dll