Struct Send with socket from c# to delphi

I want to send the struct to another Program by using TcpClient. I found a
method that converts struct to byte but it does not works correctly. What
am i missing?

public struct student
   public char[] sName;
 [MarshalAs(UnmanagedType.ByValArray, SizeConst = 33)]
 public char[] sLastName;
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How are you converting it to binary? are you using Binary Serialization, or something else?
tolgaongAuthor Commented:
This code converts struct to  byte array is below with the title.

I found my mistake. I filled with space chars. Therefore it differs from the correct result. I had to fill unused array elements with 0\'0'.

student tolga = new student();
char[] sName = new char[33];
"Tolga".ToCharArray().CopyTo(sName, 0);
tolga.sName = sName;
char[] sLastName = new char[33];
"Ongunsu".ToCharArray().CopyTo(sLastName, 0);
tolga.sLastName = sLastName;

private byte[] StructureToByteArray(object obj)
            int len = Marshal.SizeOf(obj);
            byte[] arr = new byte[len];
            IntPtr ptr = Marshal.AllocHGlobal(len);
            Marshal.StructureToPtr(obj, ptr, true);
            Marshal.Copy(ptr, arr, 0, len);
            return arr;

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