Asynchronously loading Blendable sample data in MVVM Light in the view model's constructor

Question

I have a Windows Phone 8.1 MVVM Light project and I am struggling to keep it Blendable.

As I see it I have a few options. I can load different view mode

Answer 1

Load your data on the page load event, using a Command, so you can take advantage of the await/async stuff. I don't know how this works with blend as I don't use it much.

View:

<i:Interaction.Triggers>
    <i:EventTrigger EventName="Loaded">
        <i:InvokeCommandAction Command="{Binding PageLoadedCommand}"/>
    </i:EventTrigger>   
</i:Interaction.Triggers>

ViewModel:

public RelayCommand PageLoadedCommand { get; private set; }
public MyConstructor(IService serviceInjected)
{
    PageLoadedCommand = new RelayCommand(async()=>await OnPageLoaded());
....
}

private async Task OnPageLoaded()
{
   if(ViewModelBase.IsInDesignModeStatic)
   {
       var data = await GetSampleDataAsync();
       //Do something..
   }
}