How can I write binary files in C# form appliation

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I Had Searched Everywhere To Write Binary Files In C#

I Had Only Get How To Do It in console

but i want it to be from text box to binary
how can i do it

What I have tried:

I Had  Searched Everywhere To Write Binary Files In C#

I Had Only Get How To Do It in console

but i want it to be from text box to binary
how can i do it

Posted 29-Dec-20 3:19am

Vaishnav Ceh

Updated 29-Dec-20 4:08am

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2 solutions

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Sandeep Mewara · Answer 1 · 2020-12-29T03:30:00

The BinaryReader and BinaryWriter classes are used for reading from and writing to a binary file.

You can read details here: Reading from and Writing into Binary files - Tutorialspoint[^]

Example:

C#

using System;
using System.IO;

namespace BinaryFileApplication {
   class Program {
      static void Main(string[] args) {
         BinaryWriter bw;
         BinaryReader br;
         
         int i = 25;
         double d = 3.14157;
         bool b = true;
         string s = "I am happy"; //In your case you can get this string from the textbox.
         
         //create the file
         try {
            bw = new BinaryWriter(new FileStream("mydata", FileMode.Create));
         } catch (IOException e) {
            Console.WriteLine(e.Message + "\n Cannot create file.");
            return;
         }
         
         //writing into the file
         try {
            bw.Write(i);
            bw.Write(d);
            bw.Write(b);
            bw.Write(s);
         } catch (IOException e) {
            Console.WriteLine(e.Message + "\n Cannot write to file.");
            return;
         }
         bw.Close();
         
         //reading from the file
         try {
            br = new BinaryReader(new FileStream("mydata", FileMode.Open));
         } catch (IOException e) {
            Console.WriteLine(e.Message + "\n Cannot open file.");
            return;
         }
         
         try {
            i = br.ReadInt32();
            Console.WriteLine("Integer data: {0}", i);
            d = br.ReadDouble();
            Console.WriteLine("Double data: {0}", d);
            b = br.ReadBoolean();
            Console.WriteLine("Boolean data: {0}", b);
            s = br.ReadString();
            Console.WriteLine("String data: {0}", s);
         } catch (IOException e) {
            Console.WriteLine(e.Message + "\n Cannot read from file.");
            return;
         }
         br.Close();
         Console.ReadKey();
      }
   }
}

Output:

Integer data: 25
Double data: 3.14157
Boolean data: True
String data: I am happy

Try out.

OriginalGriff · Answer 2 · 2020-12-29T04:08:00

Or even easier than Sandeep's method:

public void WriteStringAsBinary(string path, string data)
    {
    byte[] bytes = Encoding.UTF8.GetBytes(data);
    File.WriteAllBytes(path, bytes);
    }

Though to be honest you will almost certainly get exactly the same result with this:

public void WriteStringAsBinary(string path, string data)
    {
    File.WriteAllText(path, data, Encoding.UTF8);
    }

How can I write binary files in C# form appliation

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