豆瓣电台WP7客户端 MVVM重构记录之使用MVVM Light实现Event绑定

 
namespaceDBFM7.ViewModel    
{    
 public classChannelTileViewModel: ViewModelBase 
 {    
 /// <summary>     
        ///Initializes a new instance of the ChannelTileViewModel class.     
 /// </summary>     
 publicChannelTileViewModel()    
        {    
 TouchPanel.EnabledGestures = GestureType.Tap | GestureType.HorizontalDrag;    
 
 this._TapCommand = newRelayCommand<string>(this.HubTile_Tap);    
        }    
 
 
 privateRelayCommand<string> _TapCommand;    
 
 publicRelayCommand<string> TapCommand    
        {    
 get{ return_TapCommand; }    
 set     
 {    
                _TapCommand = value;    
 this.RaisePropertyChanged("TapCommand");    
            }    
        }    
 
  private voidHubTile_Tap(string hubTile)    
        {
         MessageBox.Show(hubTile);
 
        }    
 
 
    }    
}

    xmlns:i="clr-namespace:System.Windows.Interactivity;assembly=System.Windows.Interactivity"
    xmlns:cmd="clr-namespace:GalaSoft.MvvmLight.Command;assembly=GalaSoft.MvvmLight.Extras.WP71"

     <toolkit:HubTile Grid.Row="0" Grid.Column="1"
                              Margin="12,12,0,0"
                             x:Name="OM" >
                <i:Interaction.Triggers>
                    <i:EventTrigger EventName="Tap">
                        <cmd:EventToCommand Command="{Binding TapCommand}" 
                                            CommandParameter="{ Binding Title, ElementName=OM }" />
                    </i:EventTrigger>
                </i:Interaction.Triggers>
            </toolkit:HubTile>

My stance on MVVM is:   
View : knows about ViewModel    
ViewModel : knows about Model (has NO knowledge of View)    
Model : holds data. (has NO knowledge of ViewModel, View)