// 保存饼图数据列表
public async void SaveToFile()
{
try
{
await StorageFileHelper.WriteAsync(data, FILE_PIE_NAME);
}
catch (Exception e)
{
System.Diagnostics.Debug.WriteLine(e.Message);
}
}
// 添加一条日常记录
public async void AddNew(Daily item)
{
await Getdata();
_data.Add(item);
if (_data != null)
{
await StorageFileHelper.WriteAsync(_data, "Daily.dat");
}
else
{
MessageDialog dialog = new MessageDialog("data is null!");
await dialog.ShowAsync();
}
}
