Files in C#

• هنستخدم namespace اسمها System.IO

using System.IO;  // include the System.IO namespace
 
File.SomeFileMethod();  // use the file class with methods

Method	Description
AppendText()	Appends text at the end of an existing file
Copy()	Copies a file
Create()	Creates or overwrites a file
Delete()	Deletes a file
Exists()	Tests whether the file exists
ReadAllText()	Reads the contents of a file
Replace()	Replaces the contents of a file with the contents of another file
WriteAllText()	Creates a new file and writes the contents to it. If the file already exists, it will be overwritten.

Write To a File and Read It

using System.IO;  // include the System.IO namespace
 
string writeText = "Hello World!";  
// Create a text string
File.WriteAllText("filename.txt", writeText);  
// Create a file and write the content of writeText to it
 
string readText = File.ReadAllText("filename.txt");  
// Read the contents of the file
Console.WriteLine(readText);  // Output the content