There are questions about this already, but this is a bit different so I'm asking. 
This is my xaml inside Window : 

```
<i:Interaction.Triggers>
    <i:EventTrigger EventName="Closing">
        <i:InvokeCommandAction Command="{Binding ClosingCommand}" />
    </i:EventTrigger>
</i:Interaction.Triggers>

```

This is closing Command : 

```
public virtual ICommand ClosingCommand
{
    get { return new RelayCommand(ClosingExecute); }
}

```

This is Execute : 

```
public virtual void ClosingExecute()
{
   MessageBoxResult result = MessageBox.Show("Close the application?", "Shut Down", MessageBoxButton.YesNo);

    if(result == MessageBoxResult.Yes)
    {
        Application.Current.Shutdown();
    }
    else
    {
       //I don't know what to write
    }

}

```

How can I keep my application alive in this situation? Thanks.