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254 lines
9.7 KiB
254 lines
9.7 KiB
/* Copyright (C) 2008-2016 Peter Palotas, Jeffrey Jangli, Alexandr Normuradov
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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using System;
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using System.IO;
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using System.Security;
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namespace Alphaleonis.Win32.Filesystem
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{
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/// <summary>Represents information about a file system entry.
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/// <para>This class cannot be inherited.</para>
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/// </summary>
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[SerializableAttribute]
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[SecurityCritical]
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public sealed class FileSystemEntryInfo
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{
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/// <summary>Initializes a new instance of the <see cref="FileSystemEntryInfo"/> class.</summary>
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/// <param name="findData">The NativeMethods.WIN32_FIND_DATA structure.</param>
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internal FileSystemEntryInfo(NativeMethods.WIN32_FIND_DATA findData)
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{
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Win32FindData = findData;
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}
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#region Properties
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/// <summary>Gets the 8.3 version of the filename.</summary>
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/// <value>the 8.3 version of the filename.</value>
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public string AlternateFileName
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{
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get { return Win32FindData.cAlternateFileName; }
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}
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/// <summary>Gets the attributes.</summary>
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/// <value>The attributes.</value>
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public FileAttributes Attributes
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{
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get { return Win32FindData.dwFileAttributes; }
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}
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/// <summary>Gets the time this entry was created.</summary>
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/// <value>The time this entry was created.</value>
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public DateTime CreationTime
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{
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get { return CreationTimeUtc.ToLocalTime(); }
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}
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/// <summary>Gets the time, in coordinated universal time (UTC), this entry was created.</summary>
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/// <value>The time, in coordinated universal time (UTC), this entry was created.</value>
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public DateTime CreationTimeUtc
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{
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get { return DateTime.FromFileTimeUtc(Win32FindData.ftCreationTime); }
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}
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/// <summary>Gets the name of the file.</summary>
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/// <value>The name of the file.</value>
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public string FileName
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{
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get { return Win32FindData.cFileName; }
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}
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/// <summary>Gets the size of the file.</summary>
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/// <value>The size of the file.</value>
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public long FileSize
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{
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get { return NativeMethods.ToLong(Win32FindData.nFileSizeHigh, Win32FindData.nFileSizeLow); }
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}
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private string _fullPath;
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/// <summary>The full path of the file system object.</summary>
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public string FullPath
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{
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get { return _fullPath; }
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set
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{
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LongFullPath = value;
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_fullPath = Path.GetRegularPathCore(LongFullPath, GetFullPathOptions.None, false);
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}
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}
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/// <summary>Gets a value indicating whether this instance is compressed.</summary>
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/// <value><see langword="true"/> if this instance is compressed; otherwise, <see langword="false"/>.</value>
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/// <remarks>
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/// It is not possible to change the compression status of a File object by using the SetAttributes method.
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/// Instead, you must actually compress the file using either a compression tool or one of the classes in the <see cref="System.IO.Compression"/> namespace.
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/// </remarks>
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public bool IsCompressed
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{
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get { return Attributes != (FileAttributes)(-1) && (Attributes & FileAttributes.Compressed) != 0; }
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}
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/// <summary>Gets a value indicating whether this instance is hidden, and thus is not included in an ordinary directory listing.</summary>
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/// <value><see langword="true"/> if this instance is hidden; otherwise, <see langword="false"/>.</value>
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public bool IsHidden
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{
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get { return Attributes != (FileAttributes)(-1) && (Attributes & FileAttributes.Hidden) != 0; }
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}
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/// <summary>Gets a value indicating whether this instance represents a directory.</summary>
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/// <value><see langword="true"/> if this instance represents a directory; otherwise, <see langword="false"/>.</value>
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public bool IsDirectory
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{
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get { return Attributes != (FileAttributes)(-1) && (Attributes & FileAttributes.Directory) != 0; }
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}
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/// <summary>Gets a value indicating whether this instance is encrypted (EFS).</summary>
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/// <value><see langword="true"/> if this instance is encrypted (EFS); otherwise, <see langword="false"/>.</value>
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/// <remarks>
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/// For a file, this means that all data in the file is encrypted.
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/// For a directory, this means that encryption is the default for newly created files and directories.
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/// </remarks>
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public bool IsEncrypted
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{
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get { return Attributes != (FileAttributes) (-1) && (Attributes & FileAttributes.Encrypted) != 0; }
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}
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/// <summary>Gets a value indicating whether this instance is a mount point.</summary>
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/// <value><see langword="true"/> if this instance is a mount point; otherwise, <see langword="false"/>.</value>
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public bool IsMountPoint
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{
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get { return ReparsePointTag == ReparsePointTag.MountPoint; }
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}
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/// <summary>Gets a value indicating whether this instance is offline. The data of the file is not immediately available.</summary>
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/// <value><see langword="true"/> if this instance is offline; otherwise, <see langword="false"/>.</value>
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public bool IsOffline
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{
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get { return Attributes != (FileAttributes)(-1) && (Attributes & FileAttributes.Offline) != 0; }
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}
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/// <summary>Gets a value indicating whether this instance is read-only.</summary>
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/// <value><see langword="true"/> if this instance is read-only; otherwise, <see langword="false"/>.</value>
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public bool IsReadOnly
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{
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get { return Attributes != (FileAttributes)(-1) && (Attributes & FileAttributes.ReadOnly) != 0; }
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}
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/// <summary>Gets a value indicating whether this instance contains a reparse point, which is a block of user-defined data associated with a file or a directory.</summary>
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/// <value><see langword="true"/> if this instance contains a reparse point; otherwise, <see langword="false"/>.</value>
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public bool IsReparsePoint
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{
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get { return Attributes != (FileAttributes)(-1) && (Attributes & FileAttributes.ReparsePoint) != 0; }
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}
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/// <summary>Gets a value indicating whether this instance is a symbolic link.</summary>
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/// <value><see langword="true"/> if this instance is a symbolic link; otherwise, <see langword="false"/>.</value>
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public bool IsSymbolicLink
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{
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get { return ReparsePointTag == ReparsePointTag.SymLink; }
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}
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/// <summary>Gets the time this entry was last accessed.</summary>
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/// <value>The time this entry was last accessed.</value>
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public DateTime LastAccessTime
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{
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get { return LastAccessTimeUtc.ToLocalTime(); }
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}
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/// <summary>Gets the time, in coordinated universal time (UTC), this entry was last accessed.</summary>
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/// <value>The time, in coordinated universal time (UTC), this entry was last accessed.</value>
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public DateTime LastAccessTimeUtc
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{
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get { return DateTime.FromFileTimeUtc(Win32FindData.ftLastAccessTime); }
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}
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/// <summary>Gets the time this entry was last modified.</summary>
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/// <value>The time this entry was last modified.</value>
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public DateTime LastWriteTime
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{
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get { return LastWriteTimeUtc.ToLocalTime(); }
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}
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/// <summary>Gets the time, in coordinated universal time (UTC), this entry was last modified.</summary>
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/// <value>The time, in coordinated universal time (UTC), this entry was last modified.</value>
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public DateTime LastWriteTimeUtc
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{
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get { return DateTime.FromFileTimeUtc(Win32FindData.ftLastWriteTime); }
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}
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private string _longFullPath;
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/// <summary>The full path of the file system object in Unicode (LongPath) format.</summary>
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public string LongFullPath
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{
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get { return _longFullPath; }
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private set { _longFullPath = Path.GetLongPathCore(value, GetFullPathOptions.None); }
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}
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/// <summary>Gets the reparse point tag of this entry.</summary>
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/// <value>The reparse point tag of this entry.</value>
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public ReparsePointTag ReparsePointTag
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{
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get { return IsReparsePoint ? Win32FindData.dwReserved0 : ReparsePointTag.None; }
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}
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/// <summary>Gets internal WIN32 FIND Data</summary>
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internal NativeMethods.WIN32_FIND_DATA Win32FindData { get; private set; }
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#endregion // Properties
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#region Methods
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/// <summary>Returns the <see cref="FullPath"/> of the <see cref="FileSystemEntryInfo"/> instance.</summary>
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/// <returns>The <see cref="FullPath"/> instance as a string.</returns>
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public override string ToString()
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{
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return FullPath;
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}
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#endregion // Methods
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}
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}
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