File stream read

Initializes a new instance of the FileStream class with the specified path, creation mode, access rights and sharing permission, the buffer size, additional file options, access control and audit security. Gets the operating system file handle for the file that the current FileStream object encapsulates. Gets a value that indicates whether the FileStream was opened asynchronously or synchronously. Gets the absolute path of the file opened in the FileStream. Gets or sets a value, in milliseconds, that determines how long the stream will attempt to read before timing out.

Gets a SafeFileHandle object that represents the operating system file handle for the file that the current FileStream object encapsulates. Gets or sets a value, in milliseconds, that determines how long the stream will attempt to write before timing out. Begins an asynchronous read operation.

Begins an asynchronous write operation. Closes the current stream and releases any resources such as sockets and file handles associated with the current stream. Instead of calling this method, ensure that the stream is properly disposed. Reads the bytes from the current stream and writes them to another stream, using a specified buffer size.

Asynchronously reads the bytes from the current stream and writes them to another stream, using a specified cancellation token. Asynchronously reads the bytes from the current stream and writes them to another stream, using a specified buffer size. Asynchronously reads the bytes from the current file stream and writes them to another stream, using a specified buffer size and cancellation token.

Asynchronously reads the bytes from the current stream and writes them to another stream, using a specified buffer size and cancellation token. Creates an object that contains all the relevant information required to generate a proxy used to communicate with a remote object. Allocates a WaitHandle object.

Releases all resources used by the Stream. Releases the unmanaged resources used by the FileStream and optionally releases the managed resources.

Asynchronously releases the unmanaged resources used by the FileStream. Asynchronously releases the unmanaged resources used by the Stream. Waits for the pending asynchronous read operation to complete. Waits for the pending asynchronous read to complete. Ends an asynchronous write operation.

Ensures that resources are freed and other cleanup operations are performed when the garbage collector reclaims the FileStream. Clears buffers for this stream and causes any buffered data to be written to the file, and also clears all intermediate file buffers. Asynchronously clears all buffers for this stream and causes any buffered data to be written to the underlying device. Asynchronously clears all buffers for this stream, causes any buffered data to be written to the underlying device, and monitors cancellation requests.

Gets a FileSecurity object that encapsulates the access control list ACL entries for the file described by the current FileStream object. Retrieves the current lifetime service object that controls the lifetime policy for this instance. Gets the Type of the current instance. Prevents other processes from reading from or writing to the FileStream. Creates a shallow copy of the current Object.

Creates a shallow copy of the current MarshalByRefObject object. The byte, cast to an Int32 , or -1 if the end of the stream has been reached. The following code example shows how to write data to a file, byte by byte, and then verify that the data was written correctly. This method overrides ReadByte. Use the CanRead property to determine whether the current instance supports reading. For additional information, see CanRead. The default implementation on Stream creates a new single-byte array and then calls Read Byte[], Int32, Int In the following example, we use FileStream in combination with StreamReader.

In the example, we read a text file. When we use StreamReader , we do not need to do the decoding of bytes into characters. We pass the FileStream to the StreamReader. If we do not explicitly specify the encoding, the default UTF8 is used. We read the data with the StreamReader's WriteLine method. It returns the next line from the input stream, or null if the end of the input stream is reached. The CopyTo method reads the bytes from the current stream and writes them to another stream.

The example uses the HttpClient to download a small image file. It is a recommended programming practice to use FileStream with the using statement, which ensures that the Dispose method is executed even when there is an exception being thrown by the code. The Dispose method takes care of managed and unmanaged resources. The FileMode enumerator explains the various modes for the file while.

NET tries to open it. For example,.