public void MoveTo(string destDirName)
{
if (destDirName == null)
{
throw new ArgumentNullException("destDirName");
}
if (destDirName.Length == 0)
{
throw new ArgumentException(Environment.GetResourceString("Argument_EmptyFileName"), "destDirName");
}
Contract.EndContractBlock();
Directory.CheckPermissions(DisplayPath, FullPath, checkHost: true, access: FileSecurityStateAccess.Write | FileSecurityStateAccess.Read);
string fullDestDirName = Path.GetFullPathInternal(destDirName);
if (!fullDestDirName.EndsWith(Path.DirectorySeparatorChar))
{
fullDestDirName = fullDestDirName + Path.DirectorySeparatorChar;
}
// Demand read & write permission to destination. The reason is
// we hand back a DirectoryInfo to the destination that would allow
// you to read a directory listing from that directory. Sure, you
// had the ability to read the file contents in the old location,
// but you technically also need read permissions to the new
// location as well, and write is not a true superset of read.
Directory.CheckPermissions(destDirName, fullDestDirName, checkHost: true, access: FileSecurityStateAccess.Write | FileSecurityStateAccess.Read);
String fullSourcePath;
if (FullPath.EndsWith(Path.DirectorySeparatorChar))
{
fullSourcePath = FullPath;
}
else
{
fullSourcePath = FullPath + Path.DirectorySeparatorChar;
}
if (String.Compare(fullSourcePath, fullDestDirName, StringComparison.OrdinalIgnoreCase) == 0)
{
throw new IOException(Environment.GetResourceString("IO.IO_SourceDestMustBeDifferent"));
}
String sourceRoot = Path.GetPathRoot(fullSourcePath);
String destinationRoot = Path.GetPathRoot(fullDestDirName);
if (String.Compare(sourceRoot, destinationRoot, StringComparison.OrdinalIgnoreCase) != 0)
{
throw new IOException(Environment.GetResourceString("IO.IO_SourceDestMustHaveSameRoot"));
}
if (!Win32Native.MoveFile(FullPath, destDirName))
{
int hr = Marshal.GetLastWin32Error();
if (hr == Win32Native.ERROR_FILE_NOT_FOUND) // A dubious error code
{
hr = Win32Native.ERROR_PATH_NOT_FOUND;
__Error.WinIOError(hr, DisplayPath);
}
if (hr == Win32Native.ERROR_ACCESS_DENIED) // We did this for Win9x. We can't change it for backcomp.
{
throw new IOException(Environment.GetResourceString("UnauthorizedAccess_IODenied_Path", DisplayPath));
}
__Error.WinIOError(hr, string.Empty);
}
FullPath = fullDestDirName;
OriginalPath = destDirName;
DisplayPath = GetDisplayName(OriginalPath, FullPath);
// Flush any cached information about the directory.
_dataInitialised = -1;
}
[System.Security.SecurityCritical] // auto-generated
private DirectoryInfo(SerializationInfo info, StreamingContext context) : base(info, context)
{
Directory.CheckPermissions(string.Empty, FullPath, checkHost: false);
DisplayPath = GetDisplayName(OriginalPath, FullPath);
}
