public static Task <string> DownloadTask(F.ForShop.Work.Journals.Ref.Context context)
{
var tcs = new TaskCompletionSource <string>();
var downloader = new Downloader();
downloader.Begin(context, asyncResult =>
{
try { tcs.SetResult(downloader.End(asyncResult)); }
catch (Exception exc) { tcs.SetException(exc); }
}, null);
return(tcs.Task);
}
public void DownloadAsync(F.ForShop.Work.Journals.Ref.Context context)
{
page = new F.ForShop.Work.Journals.Ref.Page()
{
UserAccount = Entity.Factory.UserAccount.Load(".user.json"),
PageContext = context
};
//page.Reached += OnReached;
//page.ReachAsync();
page.ExcelDownloadCompleted += OnExcelDownloadCompleted;
page.ExcelAsync();
}
public virtual IAsyncResult Begin(F.ForShop.Work.Journals.Ref.Context context, AsyncCallback callback, object state)
{
var ar = new Context()
{
AsyncState = state, AsyncWaitHandle = null
};
Action <string> onDownloaded = null;
onDownloaded = (string result) =>
{
Downloaded -= onDownloaded;
ar.CompletedSynchronously = true;
ar.IsCompleted = true;
ar.Result = result;
callback(ar);
};
Downloaded += onDownloaded;
DownloadAsync(context);
ar.CompletedSynchronously = false;
ar.IsCompleted = false;
return(ar);
}
