本文整理汇总了C#中MemoryStream.CopyToAsync方法的典型用法代码示例。如果您正苦于以下问题：C# MemoryStream.CopyToAsync方法的具体用法？C# MemoryStream.CopyToAsync怎么用？C# MemoryStream.CopyToAsync使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类MemoryStream的用法示例。
在下文中一共展示了MemoryStream.CopyToAsync方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: SaveAsync
/// <summary>
/// Save the current <see cref="SessionState" />. Any <see cref="Frame" /> instances
/// registered with <see cref="RegisterFrame" /> will also preserve their current
/// navigation stack, which in turn gives their active <see cref="Page" /> an opportunity
/// to save its state.
/// </summary>
/// <returns>An asynchronous task that reflects when session state has been saved.</returns>
public static async Task SaveAsync()
{
try
{
// Save the navigation state for all registered frames
foreach (var weakFrameReference in _registeredFrames)
{
Frame frame;
if (weakFrameReference.TryGetTarget(out frame))
{
SaveFrameNavigationState(frame);
}
}
// Serialize the session state synchronously to avoid asynchronous access to shared
// state
var sessionData = new MemoryStream();
var serializer = new DataContractSerializer(typeof (Dictionary<string, object>), _knownTypes);
serializer.WriteObject(sessionData, _sessionState);
// Get an output stream for the SessionState file and write the state asynchronously
var file =
await
ApplicationData.Current.LocalFolder.CreateFileAsync(sessionStateFilename,
CreationCollisionOption.ReplaceExisting);
using (var fileStream = await file.OpenStreamForWriteAsync())
{
sessionData.Seek(0, SeekOrigin.Begin);
await sessionData.CopyToAsync(fileStream);
}
}
catch (Exception e)
{
throw new SuspensionManagerException(e);
}
}