如何将文件从隔离存储复制到手机存储WP8？ [英] How to copy a file from Isolated Storage to Phone Storage WP8?

问题描述

我正在创建一个创建文本文件并将该文件存储在Isolated Storage中的应用程序。             



 

 if（！myFile.FileExists（sFile））
 {
 IsolatedStorageFileStream dataFile = myFile.CreateFile（sFile）; 
 dataFile.Close（）; 
} 
 StreamReader reader = new StreamReader（new IsolatedStorageFileStream（sFile，FileMode.Open，myFile））; 
 string rawData = reader.ReadToEnd（）; 
 reader.Close（）; 
 
 StreamWriter sw = new StreamWriter（new IsolatedStorageFileStream（sFile，FileMode.Append，myFile））; 
 string [] hello = new string [] {" av"，" vd"，" dbg" }; 
 for（int i = 0; i< hello.Length; i ++）
 {
 sw.WriteLine（hello [i]）; 
} 
 sw.Close（）; 

$
            

我需要将存储在隔离存储中的文件移动到手机存储中。如何在Windows Phone 8应用程序中实现此目的？

解决方案

最好的方法是使用FileSavePicker，它将为您提供一个可以打开的文件句柄，将文件中包含的数据存储到。从IsolatedStorage到操作系统中的KnownFolder的一个命令副本 - 至少据我所知 - 是不可能的。

有关FileSavePicker的信息，请参阅此处：
http ：//msdn.microsoft.com/library/windows/apps/windows.storage.pickers.filesavepicker.aspx

I was creating an application which creates a text file and storing that file in Isolated Storage.             

 

 if (!myFile.FileExists(sFile))
            {
                IsolatedStorageFileStream dataFile = myFile.CreateFile(sFile);
                dataFile.Close();
            }
            StreamReader reader = new StreamReader(new IsolatedStorageFileStream(sFile, FileMode.Open, myFile));
            string rawData = reader.ReadToEnd();
            reader.Close();

            StreamWriter sw = new StreamWriter(new IsolatedStorageFileStream(sFile, FileMode.Append, myFile));
            string[] hello = new string[] { "av", "vd", "dbg" };
            for (int i = 0; i < hello.Length; i++)
            {
                sw.WriteLine(hello[i]);
            }
            sw.Close();

            
I need to move that file stored in Isolated Storage to the Phone Storage. How to achieve this in Windows Phone 8 application?

解决方案

The best way is to use the FileSavePicker which will give you a file handle that you can open and store the data contained in the file to. A one-command-copy from IsolatedStorage to a KnownFolder in the OS is - at least to my knowledge - not possible.

For information on the FileSavePicker see here: http://msdn.microsoft.com/library/windows/apps/windows.storage.pickers.filesavepicker.aspx

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