private void Transfer_DataRequested(DataTransferManager sender, DataRequestedEventArgs args)
{
if (!Equals(null, VM))
{
DataPackage dp = new DataPackage();
switch (VM.GetType().Name)
{
case "PictureViewModel":
dp.Properties.Title = "分享图片";
dp.SetText( $"一张图片，千言万语[来自ONE-UWP的分享]：{(VM as PictureViewModel).Picture.WebLk}");
break;
case "ArticleViewModel":
dp.Properties.Title = "分享文章";
dp.SetText($"世间风情，字里行间[来自ONE-UWP的分享]：{(VM as ArticleViewModel).Article.WebLk}");
break;
case "QuestionViewModel":
dp.Properties.Title = "分享问题";
dp.SetText($"每天一问，有问必答[来自ONE-UWP的分享]：{(VM as QuestionViewModel).Question.WebLk}");
break;
case "ThingViewModel":
dp.Properties.Title = "分享东西";
dp.SetText($"友好世界，有好东西[来自ONE-UWP的分享]：{(VM as ThingViewModel).Thing.Wu}");
break;
}
args.Request.Data = dp;
}
else
{
return;
}
}