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File Objects in C#
To create a new file in C#, use the FileStream object.
The following is the syntax −
FileStream <object_name> = new FileStream( <file_name>, <FileMode Enumerator>, <FileAccess Enumerator>, <FileShare Enumerator>);
Let us see an example for a file “test.dat”, which is created/ opened using File object −
FileStream F = new FileStream("test.dat", FileMode.OpenOrCreate,FileAccess.ReadWrite);The following is an example −
Example
using System;
using System.IO;
namespace FileIOApplication {
class Program {
static void Main(string[] args) {
FileStream F = new FileStream("test.dat", FileMode.OpenOrCreate,
FileAccess.ReadWrite);
for (int i = 1; i <= 20; i++) {
F.WriteByte((byte)i);
}
F.Position = 0;
for (int i = 0; i <= 20; i++) {
Console.Write(F.ReadByte() + " ");
}
F.Close();
Console.ReadKey();
}
}
}
Updated on: 22-Jun-2020
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