Export (0) Print
Expand All

File.WriteAllBytes Method

Creates a new file, writes the specified byte array to the file, and then closes the file. If the target file already exists, it is overwritten.

Namespace:  System.IO
Assembly:  mscorlib (in mscorlib.dll)

public static function WriteAllBytes(
	path : String, 
	bytes : byte[]
)

Parameters

path
Type: System.String

The file to write to.

bytes
Type: System.Byte[]

The bytes to write to the file.

ExceptionCondition
ArgumentException

path is a zero-length string, contains only white space, or contains one or more invalid characters as defined by InvalidPathChars.

ArgumentNullException

path is a null reference (Nothing in Visual Basic) or the byte array is empty.

PathTooLongException

The specified path, file name, or both exceed the system-defined maximum length. For example, on Windows-based platforms, paths must be less than 248 characters, and file names must be less than 260 characters.

DirectoryNotFoundException

The specified path is invalid (for example, it is on an unmapped drive).

IOException

An I/O error occurred while opening the file.

-or-

An attempt is made to write a file that is larger than 64 MB to a network path.

UnauthorizedAccessException

path specified a file that is read-only.

-or-

This operation is not supported on the current platform.

-or-

path specified a directory.

-or-

The caller does not have the required permission.

FileNotFoundException

The file specified in path was not found.

NotSupportedException

path is in an invalid format.

SecurityException

The caller does not have the required permission.

Given a byte array and a file path, this method opens the specified file, writes the contents of the byte array to the file, and then closes the file.

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

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

.NET Framework

Supported in: 3.5, 3.0, 2.0

Community Additions

ADD
Show:
© 2014 Microsoft