文档文件夹的访问被拒绝

我试图通过WP8.1手机应用程序将文件从Picture Library文件夹复制到Document文件夹但是我得到了拒绝访问权限。

当我尝试将文件从图片库复制到相机胶卷文件夹时n文件被复制而没有任何错误/异常。



下面是在处理Document文件夹时给出异常的代码：



StorageFolder ^ picturesFolder = KnownFolders :: DocumentsLibrary;

create_task（file-> CopyAsync（picturesFolder，" sample - Copy.dat"，NameCollisionOption :: ReplaceExisting））。then（[this，file]（task< StorageFile ^>
任务）

{ < br style ="color：＃333333; font-family：'Helvetica Neue'，Arial，Helvetica，sans-serif; font-size：15px; line-height：22.5px">
try

{

StorageFile ^ sampleFileCopy = task.get（）;

rootPage-> NotifyUser（"'file'" file-> Name "'被复制，新文件被命名为'" sampleFileCopy-> Name
"'。"，NotifyType :: StatusMessage）;

}

catch（COMException ^ ex）

{

rootPage-> HandleFileNotFoundException（ex）;

}

}）;

}



实际上我需要将图片库中的文件夹复制到文件夹中。请帮助。



谢谢，

Deepak

Hi,

I am trying to copy file from Picture Library folder to Document folder via WP8.1 phone app, however I am getting the Access Denied Exception.
When I tried to copy the file from Picture Library to Camera Roll folder than the file gets copied without any Error/Exception.

Below is the code that is giving exception while coping to Document folder:

StorageFolder^ picturesFolder = KnownFolders::DocumentsLibrary;
create_task(file->CopyAsync(picturesFolder, "sample - Copy.dat", NameCollisionOption::ReplaceExisting)).then([this, file](task<StorageFile^> task)
{
try
{
StorageFile^ sampleFileCopy = task.get();
rootPage->NotifyUser("The file '" file->Name "' was copied and the new file was named '" sampleFileCopy->Name "'.", NotifyType::StatusMessage);
}
catch (COMException^ ex)
{
rootPage->HandleFileNotFoundException(ex);
}
});
}

Actually I need to copy the folder present in Picture Library to the Document Folder. Kindly assist.

Thanks,
Deepak