private async void selectFileButton_Click(object sender, RoutedEventArgs e)
{
bool flag = false;
AssignmentModel.SelectedAssignment = UserModel.SelectedAssignment;
var picker = new Windows.Storage.Pickers.FileOpenPicker();
picker.ViewMode = Windows.Storage.Pickers.PickerViewMode.Thumbnail;
picker.SuggestedStartLocation =
Windows.Storage.Pickers.PickerLocationId.PicturesLibrary;
picker.FileTypeFilter.Add(".zip");
Windows.Storage.StorageFile file = await picker.PickSingleFileAsync();
if (file != null)
{
var temp = file;
using (IRandomAccessStream fileStream = await file.OpenAsync(Windows.Storage.FileAccessMode.Read))
{
flag = await AssignmentModel.submitAssignments(temp);
}
}
if (flag)
{
var i = new Windows.UI.Popups.MessageDialog("上传成功！").ShowAsync();
}
}
