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C# - FileStream.CanWrite Property

In this tutorial, we will learn about the FileStream.CanWrite property with its usage, syntax, and example in C#.
Submitted by IncludeHelp, on November 17, 2017 [Last updated : March 27, 2023]

C# FileStream.CanWrite Property

The CanWrite is a property of FileStream class. It returns Boolean value true/false, that we can write file or not.

Syntax

bool CanWrite

Parameter(s)

• None

C# Example of FileStream.CanWrite Property

using System;
using System.IO;

namespace ConsoleApplication1 {
  class Program {
    static void Main() {
      byte[] b2 = new byte[6];

      FileStream f1;
      FileStream f2;

      f1 = new FileStream("abc.txt", FileMode.Open, FileAccess.Read);
      f2 = new FileStream("xyz.txt", FileMode.Open, FileAccess.Write);

      if (f1.CanWrite)
        Console.WriteLine("Yes, It can write.");
      else
        Console.WriteLine("Yes, It can not write.");

      f1.Close();

      if (f2.CanWrite)
        Console.WriteLine("Yes, It can write.");
      else
        Console.WriteLine("Yes, It can not write.");

      f2.Close();
    }
  }
}

Output

Yes, It can not write.
Yes, It can write.

Explanation

In above program, we need to remember, when we use "FileStream" class then we need to include System.IO namespace in the program.

C# FileStream Class Program »