X++, C# Comparison: Classes about File IO
Applies To: Microsoft Dynamics AX 2012 R3, Microsoft Dynamics AX 2012 R2, Microsoft Dynamics AX 2012 Feature Pack, Microsoft Dynamics AX 2012
Microsoft Dynamics AX provides several classes that perform file input and output (IO) operations. In the .NET Framework that is used in C#, the counterparts to these classes reside in the System.IO namespace.
Table of Class Comparisons
The following table lists several .NET Framework classes for C# that are in the System.IO namespace. Each row in the table shows the X++ class or method that best corresponds to the .NET Framework class.
X++ |
C# |
Comments |
|---|---|---|
BinaryIo |
FileStream BinaryReader BinaryWriter |
X++ classes such as BinaryIo that extend from the abstract class Io serve as a stream, and they also serve as a reader and writer for that stream. In C# the stream is a separate class the from the class that has the more specific read and write methods. |
TextBuffer |
MemoryStream |
These classes contain an in-memory buffer, and some of the methods treat the buffer as if it were a file on the hard disk. |
WINAPI::createDirectory WINAPI::folderExists WINAPI::removeDirectory |
Directory DirectoryInfo Path |
X++ can use static methods in the WINAPI class for many basic operating system functions that involve directories. |
WINAPI::getDriveType |
DriveInfo DriveType |
These classes and methods are used to obtain drive related information. |
WINAPI::copyFile WINAPI::createFile WINAPI::deleteFile WINAPI::fileExists |
File FileAttributes FileInfo |
X++ can use static methods in the WINAPI class for many basic operating system functions that involve files. |
CommaIo Comma7Io |
(No corresponding class.) |
These X++ classes can generate files that Microsoft Excel can import. In X++ the SysExcel Class provides additional interaction with Excel. |
AsciiIo TextIo |
FileStream TextReader TextWriter |
These classes use different code pages. |
Io |
Stream StreamReader StreamWriter FileStream |
These are often used as base classes that other classes extend. |
CodeAccessPermission FileIoPermission |
System.Security .CodeAccessPermission The namespace System.Security.Permissions includes the following classes:
|
The concepts and methods of assert, demand, and revertAssert apply to both languages. However, the deny and revertDeny methods that are available in C# are not available in X++. |
See also
Performing File IO with the TextIo Class
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