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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()

Return Value

Type: System.IO.StreamWriter
A new StreamWriter.

ExceptionCondition
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.

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

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

XNA Framework

Supported in: 3.0, 2.0, 1.0

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8
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