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FileAccess Enumeration

.NET Framework 4.5

[This documentation is for preview only, and is subject to change in later releases. Blank topics are included as placeholders.]

Defines constants for read, write, or read/write access to a file.

This enumeration has a FlagsAttribute attribute that allows a bitwise combination of its member values.

Namespace:  System.IO
Assembly:  mscorlib (in mscorlib.dll)
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[SerializableAttribute]
[FlagsAttribute]
[ComVisibleAttribute(true)]
public enum FileAccess
Member name Description
Supported by the XNA Framework Read Read access to the file. Data can be read from the file. Combine with Write for read/write access.
Supported by the XNA Framework Write Write access to the file. Data can be written to the file. Combine with Read for read/write access.
Supported by the XNA Framework ReadWrite Read and write access to the file. Data can be written to and read from the file.

For an example of creating a file and writing text to a file, see How to: Write Text to a File. For an example of reading text from a file, see How to: Read Text from a File. For an example of reading from and writing to a binary file, see How to: Read and Write to a Newly Created Data File.

A FileAccess parameter is specified in many of the constructors for File, FileInfo, FileStream, and other constructors where it is important to control the kind of access users have to a file.

The following FileStream constructor grants read-only access to an existing file (FileAccess.Read).

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FileStream s2 = new FileStream(name, FileMode.Open, FileAccess.Read, FileShare.Read);

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8 Consumer Preview, Windows Server 8 Beta, Windows 7, Windows Server 2008 SP2, Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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