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FileInfo.CreateText Method

Creates a StreamWriter that writes a new text file.

Namespace: System.IO
Assembly: mscorlib (in mscorlib.dll)

public StreamWriter CreateText ()
public StreamWriter CreateText ()
public function CreateText () : StreamWriter
Not applicable.

Return Value

A new StreamWriter.

Exception typeCondition

UnauthorizedAccessException

The file name is a directory.

IOException

The disk is read-only.

SecurityException

The caller does not have the required permission.

By default, full read/write access to new files is granted to all users.

For a list of common I/O tasks, see Common I/O Tasks.

The following example demonstrates the CreateText method.

using System;
using System.IO;

class Test 
{

    public static void Main() 
    {
        string path = @"c:\temp\MyTest.txt";
        FileInfo fi = new FileInfo(path);

        if (!fi.Exists) 
        {
            //Create a file to write to.
            using (StreamWriter sw = fi.CreateText()) 
            {
                sw.WriteLine("Hello");
                sw.WriteLine("And");
                sw.WriteLine("Welcome");
            }
        }

        //Open the file to read from.
        using (StreamReader sr = fi.OpenText()) 
        {
            string s = "";
            while ((s = sr.ReadLine()) != null) 
            {
                Console.WriteLine(s);
            }
        }
    }
}
//This code produces output similar to the following; 
//results may vary based on the computer/file structure/etc.:
//
//Hello
//And
//Welcome

import System.*;
import System.IO.*;

class Test
{
    public static void main(String[] args)
    {
        String path = "c:\\MyTest.txt";
        FileInfo fi = new FileInfo(path);

        if (!(fi.get_Exists())) {
            //Create a file to write to.
            StreamWriter sw = fi.CreateText();

            try {
                sw.WriteLine("Hello");
                sw.WriteLine("And");
                sw.WriteLine("Welcome");
            }
            finally {
                sw.Dispose();
            }
        }

        //Open the file to read from.
        StreamReader sr = fi.OpenText();

        try {
            String s = "";

            while ((s = sr.ReadLine()) != null) {
                Console.WriteLine(s);
            }
        }
        finally {
            sr.Dispose();
        }
    } //main
} //Test

//This code produces output similar to the following; 
//results may vary based on the computer/file structure/etc.:
//
//Hello
//And
//Welcome

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

XNA Framework

Supported in: 1.0
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