/// <include file='../../_Doc/mscorlib.xml' path='doc/members/member[@name="M:System.IO.File.Exists(System.String)"]/*' />
public static bool Exists(string path)
{
try
{
return Task.Run(async () => await FileHelper.GetStorageFileAsync(path)).Result != null;
}
catch
{
return false;
}
}
/// <include file='../../_Doc/mscorlib.xml' path='doc/members/member[@name="M:System.IO.File.Delete(System.String)"]/*' />
public static void Delete(string path)
{
try
{
Task.Run(async () =>
{
var file = await FileHelper.GetStorageFileAsync(path);
await file.DeleteAsync();
}).Wait();
}
catch
{
}
}
/// <include file='../../_Doc/mscorlib.xml' path='doc/members/member[@name="M:System.IO.File.Move(System.String,System.String)"]/*' />
public static void Move(string sourceFileName, string destFileName)
{
try
{
Task.Run(async () =>
{
var src = await FileHelper.GetStorageFileAsync(sourceFileName);
var dest = await FileHelper.CreateStorageFileAsync(destFileName);
await src.MoveAndReplaceAsync(dest);
}).Wait();
}
catch
{
}
}
/// <include file='../../_Doc/mscorlib.xml' path='doc/members/member[@name="M:System.IO.FileStream.#ctor(System.String,System.IO.FileMode,System.IO.FileAccess,System.IO.FileShare)"]/*' />
public FileStream(string path, FileMode mode, FileAccess access, FileShare share)
{
try
{
_internalStream = Task.Run(async() =>
{
StorageFile file;
Stream stream;
long position;
switch (mode)
{
case FileMode.Create:
case FileMode.Truncate:
file = await FileHelper.CreateStorageFileAsync(path);
position = 0;
break;
case FileMode.CreateNew:
if (File.Exists(path))
{
throw new IOException("File mode is CreateNew, but file already exists.");
}
file = await FileHelper.CreateStorageFileAsync(path);
position = 0;
break;
case FileMode.OpenOrCreate:
if (File.Exists(path))
{
file = await FileHelper.GetStorageFileAsync(path);
}
else
{
file = await FileHelper.CreateStorageFileAsync(path);
}
position = 0;
break;
case FileMode.Open:
if (!File.Exists(path))
{
throw new FileNotFoundException("File mode is Open, but file does not exist.");
}
file = await FileHelper.GetStorageFileAsync(path);
position = 0;
break;
case FileMode.Append:
if (File.Exists(path))
{
file = await FileHelper.GetStorageFileAsync(path);
position = (long)(await file.GetBasicPropertiesAsync()).Size;
}
else
{
file = await FileHelper.CreateStorageFileAsync(path);
position = 0;
}
break;
default:
throw new ArgumentOutOfRangeException("mode");
}
switch (access)
{
case FileAccess.ReadWrite:
case FileAccess.Write:
stream = await file.OpenStreamForWriteAsync();
break;
case FileAccess.Read:
stream = await file.OpenStreamForReadAsync();
break;
default:
throw new ArgumentException("Unsupported file access type", "access");
}
stream.Seek(position, SeekOrigin.Begin);
return(stream);
}).Result;
_disposed = false;
Name = path;
}
catch
{
_internalStream = null;
_disposed = true;
Name = String.Empty;
}
}
