/// <summary>
/// 根据索引下载文件
/// </summary>
/// <param name="fileUrl"></param>
/// <param name="Index"></param>
void DownloadFile(int Index)
{
DispatcherHelper.CheckBeginInvokeOnUI(() =>
{
UnDownload[Index].DownTextShow = false;
UnDownload[Index].CanDownload = false;
UnDownload[Index].ProgressBarShow = true;
if (!Directory.Exists(localDownload))
{
Directory.CreateDirectory(localDownload);
}
bool IsCover = false;
if (File.Exists(Path.Combine(localDownload, UnDownload[Index].FileName)))
{
//MessageBoxResult result = MessageBox.Show("存在相同文件名是否覆盖?", "提示", MessageBoxButton.YesNo);
//IsCover = result == MessageBoxResult.OK;
//if (result == MessageBoxResult.OK)
File.Delete(Path.Combine(localDownload, UnDownload[Index].FileName));
//else
// return;
}
TrayDownload _trayDownload = new TrayDownload(UnDownload[Index].FileUrl, Path.Combine(localDownload, UnDownload[Index].FileName));
_trayDownload.SetProgressBarValue += value =>
{
UnDownload[Index].DownValue = value;
if ((int)value == 100)
{
UnDownload[Index].ProgressBarShow = false;
UnDownload[Index].OpenLocalDirectoryShow = true;
UnDownload[Index].IsShow = false;
XElement File = new XElement("File");
File.SetElementValue("Id", UnDownload[Index].Id);
File.SetElementValue("FileName", UnDownload[Index].FileName);
File.SetElementValue("FileUrl", UnDownload[Index].FileUrl);
File.SetElementValue("DownLoadPath", Path.Combine(localDownload, UnDownload[Index].FileName));
File.SetElementValue("CreateTime", DateTime.Now.ToString("yyyy-MM-dd HH:mm"));
FileOperationHelper.WriteXml(History, File);
var trayDownload = PageTrayHistoryDownloadedViewModel.GetInstance();
//修改下载记录表
ThreadPool.QueueUserWorkItem(delegate
{
SynchronizationContext.SetSynchronizationContext(
new System.Windows.Threading.DispatcherSynchronizationContext(System.Windows
.Application.Current.Dispatcher));
SynchronizationContext.Current.Post(p =>
{
trayDownload.GetTrayHistoryDownload();
}, null);
});
DelNoTransferAUDiskFile(UnDownload[Index].Id);
}
};
});
}
public static PageTrayHistoryDownloadedViewModel GetInstance()
{
if (PageTrayDownloaded == null)
{
lock (locker)
{
PageTrayDownloaded = new PageTrayHistoryDownloadedViewModel();
}
}
return(PageTrayDownloaded);
}
