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FileOpenWrite Method
Opens an existing file or creates a new file for writing.

Namespace: System.IO
Assembly: mscorlib (in mscorlib.dll) Version: 4.0.0.0
Syntax
C#
public static FileStream OpenWrite(
	string path
)

Parameters

path
Type: SystemString
The file to be opened for writing.

Return Value

Type: FileStream
An unshared FileStream object on the specified path with Write access.
Exceptions
ExceptionCondition
UnauthorizedAccessExceptionThe caller does not have the required permission.-or- path specified a read-only file or directory.
ArgumentExceptionpath is a zero-length string, contains only white space, or contains one or more invalid characters as defined by InvalidPathChars.
ArgumentNullExceptionpath is null.
PathTooLongExceptionThe 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.
DirectoryNotFoundExceptionThe specified path is invalid, (for example, it is on an unmapped drive).
FileNotFoundExceptionThe file specified in path was not found.
NotSupportedExceptionpath is in an invalid format.
See Also