This documentation is archived and is not being maintained.
How to: Write Text to a File
.NET Framework 2.0
The following code examples show how to write text to a text file.
The first example shows how to add text to an existing file. The second example shows how to create a new text file and write a string to it. Similar functionality can be provided by the WriteAllText methods.
Note |
|---|
| Visual Basic users may choose to use the methods and properties provided by the My.Computer.FileSystem object for file I/O. For more information, see My.Computer.FileSystem Object. |
Example
Imports System Imports System.IO Class Test Public Shared Sub Main() ' Create an instance of StreamWriter to write text to a file. Using sw As StreamWriter = New StreamWriter("TestFile.txt") ' Add some text to the file. sw.Write("This is the ") sw.WriteLine("header for the file.") sw.WriteLine("-------------------") ' Arbitrary objects can also be written to the file. sw.Write("The date is: ") sw.WriteLine(DateTime.Now) sw.Close() End Using End Sub End Class
Option Explicit On Option Strict On Imports System Imports System.IO Public Class TextToFile Private Const FILE_NAME As String = "MyFile.txt" Public Shared Sub Main() If File.Exists(FILE_NAME) Then Console.WriteLine("{0} already exists.", FILE_NAME) Return End If Using sw As StreamWriter = File.CreateText(FILE_NAME) sw.WriteLine("This is my file.") sw.WriteLine("I can write ints {0} or floats {1}, and so on.", 1, 4.2) sw.Close() End Using End Sub End Class
See Also
Show:
Note