How to retrieve integer value from binary file in C#

Question

I am writing the integer value in binary file as follows:-

int val =10;

FileStream fs = new FileStream("BinaryFile.bin", FileMode.Create);
            BinaryWriter bw = new BinaryWriter(fs, Encoding.Unicode);

bw.Write(val);

//Reading value from binary as:-

FileStream fs = new FileStream("BinaryFile.bin", FileMode.Open);
  BinaryReader br = new BinaryReader(fs, Encoding.Unicode);

int x = br.ReadInt32();

Value retrieved is: 1.092616E + 09

I am getting this value instead of '10'

Is there any other method to retrieve the int value?

What happens when you debug the code and step over the ReadInt32 line.. does x hold 10? — Simon Whitehead
– Simon Whitehead, Commented Feb 11, 2014 at 2:17
1) Try Encoding.UTF8 instead. 2) Set the offset to 0 explicitly. — Itachi
– Itachi, Commented Feb 11, 2014 at 2:23
No x holds the same value which it displays..@Itachi I am supposed to use Encode.Unicode only . Is there any other any other way which can be used ? — Payal
– Payal, Commented Feb 11, 2014 at 2:42

Community · Accepted Answer · 2017-05-23 12:20:40Z

2

Try by making change in BinaryWriter constructor

as

 FileStream fs = new FileStream("iram.bin", FileMode.Create);
        // Create the writer for data.
        BinaryWriter w = new BinaryWriter(fs);

w.Write((int) 2000);

w.Close();
fs.Close();

and read using

using (FileStream fs2 = new FileStream("iram.bin", FileMode.Open))
    {
        using(BinaryReader r = new BinaryReader(fs2))
        {
            var integerValue = r.ReadInt32();
        }
    }

More detail Writing to .bin binary file

edited May 23, 2017 at 12:20

CommunityBot

11 silver badge

answered Feb 11, 2014 at 5:51

pg90

4332 gold badges6 silver badges16 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

How to retrieve integer value from binary file in C#

1 Answer 1

Comments

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Linked

Related