How to copy byte array from binary file to array of struct.

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I've a fixed size of binary file. This file was contain 96 record with different type like a struct below.
file : "exam.dat"

C#

public struct Exam
{
    double  data1;
    double  data2;
    single  data3;
    int     data4;
    double  data5;
}

public Exam[] record = new Exam[96];

I can read it by using binaryReader or streamreader and data keep in byte array format, how can i copy into array of struct.

Posted 7-May-13 21:38pm

thammanoon_tp

Updated 8-May-13 3:07am

vijay__p

v2

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CPallini · Answer 1 · 2013-05-07T21:50:00

Solution 1

A simple approach would be providing a contructor for your struct accepting an array of bytes. Such a conctructor would use repeatedly the BitConverter class[^] (for instance you may use data1 = BitConverter.ToDouble( ba, 0); where ba is your byte array).

Posted 7-May-13 21:50pm

CPallini

Radoslav Dimitrov · Answer 2 · 2013-05-08T03:03:00

Solution 2

You can use a converter.

For double:

C#

var index = 0;
Exam[index].data1 = BitConverter.ToDouble(byteArr, 0);
//do it for data2, data3 . . .
index++;
. . .

Posted 8-May-13 3:03am

Radoslav Dimitrov

Updated 8-May-13 3:11am

v2