File::Create Method (String^, Int32, FileOptions, FileSecurity^)
Creates or overwrites the specified file with the specified buffer size, file options, and file security.
Assembly: mscorlib (in mscorlib.dll)
public: static FileStream^ Create( String^ path, int bufferSize, FileOptions options, FileSecurity^ fileSecurity )
Parameters
- path
-
Type:
System::String^
The name of the file.
- bufferSize
-
Type:
System::Int32
The number of bytes buffered for reads and writes to the file.
- options
-
Type:
System.IO::FileOptions
One of the FileOptions values that describes how to create or overwrite the file.
- fileSecurity
-
Type:
System.Security.AccessControl::FileSecurity^
One of the FileSecurity values that determines the access control and audit security for the file.
Return Value
Type: System.IO::FileStream^A new file with the specified buffer size, file options, and file security.
| Exception | Condition |
|---|---|
| UnauthorizedAccessException | The caller does not have the required permission. -or- path specified a file that is read-only. -or- Encrypted is specified for options and file encryption is not supported on the current platform. |
| 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 null. |
| 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 creating the file. |
| NotSupportedException | path is in an invalid format. |
| UnauthorizedAccessException | The caller does not have the required permission. -or- path specified a file that is read-only. |
| UnauthorizedAccessException | The caller does not have the required permission. -or- path specified a file that is read-only. |
The path parameter is permitted to specify relative or absolute path information. Relative path information is interpreted as relative to the current working directory. To obtain the current working directory, see GetCurrentDirectory.
This method is equivalent to the FileStream(String^, FileMode, FileAccess, FileShare, Int32) constructor overload. If the specified file does not exist, it is created; if it does exist and it is not read-only, the contents are overwritten.
By default, full read/write access to new files is granted to all users. The file is opened with read/write access and must be closed before it can be opened by another application.
For a list of common I/O tasks, see Common I-O Tasks.
for permission to read and write to the file described by the path parameter. Security action: Demand. Associated enumerations: FileIOPermissionAccess::Read, FileIOPermissionAccess::Write
Available since 2.0