It is used to read string from a string buffer. It is used to perform an operation on the directory. It is used to perform operations on the path of a file.Ī StreamWriter is used to write characters to a stream. It is used to access stored streaming data in memory.Ī StreamReader property is used to read characters from the stream byte. It is a temporary storage area for the collection of steam bytes. It helps to provide the necessary information for the drive. It is used to perform some changes or manipulating a directory structure. It is used to write the data in binary format. It is used to apply read or write operations on any location of a file.Īs the name represents, a Binary reader is used to read primitive data in a binary stream. It is used to perform any operation on files. It is used to perform some changes in files. The following table shows the I/O classes that are commonly used in VB.NET programming. In VB.NET, we use the System.IO namespace, that has different classes to perform various input and output operations with files, such as the FileStream class used to perform any operation like opening a file, closing a file, deleting a files, reading from or writing to a file, etc. In VB.NET file handling, there are two types of stream such as Input Stream or Read Stream and Output Stream or Write Stream. Furthermore, when a file is opened for reading and writing, a stream is created.Ī stream is a sequence of bytes that passes data to a file to read or write. The term File Handling in VB.NET is used to perform various operations like create a file, read a file, write to the file, closing the file, and more. Have questions or feedback about Office VBA or this documentation? Please see Office VBA support and feedback for guidance about the ways you can receive support and provide feedback.A file is a collection of data stored in computer memory with a specific name and a defined folder path. Functions (Visual Basic for Applications).Write #FileNumber, "This is a sample." ' Output text. Open "TEST" & MyIndex For Output As #FileNumber ' Create file name. Five files are opened for output within the loop, and some sample data is written to each. This example uses the FreeFile function to return the next available file number. Use FreeFile to supply a file number that is not already in use. Specify a 1 to return a file number in the range 256–511. Specify a 0 (default) to return a file number in the range 1–255, inclusive. The optional rangenumber argument is a Variant that specifies the range from which the next free file number is to be returned. Returns an Integer representing the next file number available for use by the Open statement.
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