Convert Object/Struct to byte[] without serialization. How can I get size of Object.

Question

5.00/5 (1 vote)

See more:

Hello!
1. I need to convert Object or struct to byte[](array).
2. Recently, I have found a certain code which ostensibly could convert object in a byte array. But for this purpose it was necessary to know the size of object. How can I receive the size of object?
It is necessary for me to use structure with type "string" inside!!!
Thankful in advance.

Posted 10-Feb-10 16:57pm

_Ares!!!

Updated 11-Feb-10 12:12pm

v3

Add a Solution

3 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Toli Cuturicu · Answer 1 · 2010-02-10T21:26:00

C#

internal static StructureType ReadStructure<StructureType>(Stream Stream)
    where StructureType : struct
{
    int Length = Marshal.SizeOf(typeof(StructureType));
    byte[] Bytes = new byte[Length];
    Stream.Read(Bytes, 0, Length);
    IntPtr Handle = Marshal.AllocHGlobal(Length);
    Marshal.Copy(Bytes, 0, Handle, Length);
    StructureType Result = (StructureType)Marshal.PtrToStructure(Handle, typeof(StructureType));
    Marshal.FreeHGlobal(Handle);
    return Result;
}

internal static void WriteStructure(object Structure, Stream Stream)
{
    int Length = Marshal.SizeOf(Structure);
    byte[] Bytes = new byte[Length];
    IntPtr Handle = Marshal.AllocHGlobal(Length);
    Marshal.StructureToPtr(Structure, Handle, true);
    Marshal.Copy(Handle, Bytes, 0, Length);
    Marshal.FreeHGlobal(Handle);
    Stream.Write(Bytes, 0, Length);
}

Marcel Gheorghita · Answer 2 · 2010-02-10T19:19:00

Solution 1

This might help you:
http://social.msdn.microsoft.com/Forums/en-IE/clr/thread/96747ab7-7d89-4846-9e83-46f71b8ccc66[^]

Posted 10-Feb-10 19:19pm

Marcel Gheorghita

_Ares!!! · Answer 3 · 2010-03-18T16:00:00

Create class like this:

class MyClass
{
public int a;
public string text;

MyClass() { } // Necessary for XmlSerializer...
}
.........
.........
/*Instead of using a BinaryFormatter, use the XmlSerializer. This one can
serialize a class even if it is not marked as [Serializable], with the
restriction that it will only save the public fields and read-write
properties, and that it requires a default constructor.*/

public static byte[] ObjectToByteArray(Object obj//Our class instance
)
{
if (obj == null)
return null;
System.Xml.Serialization.XmlSerializer bf = new System.Xml.Serialization.XmlSerializer(obj.GetType());
MemoryStream ms = new MemoryStream();
bf.Serialize(ms, obj);
return ms.ToArray();
}

Enjoy!!!

Convert Object/Struct to byte[] without serialization. How can I get size of Object.

3 solutions

Solution 2

Solution 1

Solution 3

Add your solution here

Preview 0