The Stream class and its derived classes provide a common view of data sources and repositories, and isolate the programmer from the specific details of the operating system and underlying devices. All classes that represent streams inherit from the Stream class. The abstract base class Stream supports reading and writing bytes.
See How to: Copy Directories, How to: Create a Directory Listing, and How to: Enumerate Directories and Files. In addition to using these classes, Visual Basic users can use the methods and properties provided by the class for file I/O. For more information, see Handling I/O errors. You should always provide robust exception handling when calling filesystem methods.
Path - provides methods and properties for processing directory strings in a cross-platform manner. Here are some commonly used file and directory classes:įile - provides static methods for creating, copying, deleting, moving, and opening files, and helps create a FileStream object.įileInfo - provides instance methods for creating, copying, deleting, moving, and opening files, and helps create a FileStream object.ĭirectory - provides static methods for creating, moving, and enumerating through directories and subdirectories.ĭirectoryInfo - provides instance methods for creating, moving, and enumerating through directories and subdirectories. NET Framework 4.6.2 and later, see File path formats on Windows systems. For example, you can get and set properties for files and directories, and retrieve collections of files and directories based on search criteria.įor path naming conventions and the ways to express a file path for Windows systems, including with the DOS device syntax supported in. You can use the types in the System.IO namespace to interact with files and directories. Just as there are several backing stores other than disks, there are several kinds of streams other than file streams, such as network, memory, and pipe streams. In contrast, a stream is a sequence of bytes that you can use to read from and write to a backing store, which can be one of several storage mediums (for example, disks or memory). When you work with files, you work with directory paths, disk storage, and file and directory names. These namespaces also contain types that perform compression and decompression on files, and types that enable communication through pipes and serial ports.Ī file is an ordered and named collection of bytes that has persistent storage. NET, the System.IO namespaces contain types that enable reading and writing, both synchronously and asynchronously, on data streams and files. File and stream I/O (input/output) refers to the transfer of data either to or from a storage medium.
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