结构体中包含string数组转byte[]失败，这是为什么？

[guoxijun]

[StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi, Pack = 1)]
struct Student
{
public int number;
[MarshalAs(UnmanagedType.LPArray, SizeConst = 5)]
public String[] name;
}

转换函数为：
public static byte[] StructToBytes(object structObj)
{
int size = Marshal.SizeOf(structObj);
byte[] bytes = new byte[size];
IntPtr structPtr = Marshal.AllocHGlobal(size);
Marshal.StructureToPtr(structObj, structPtr, false);
Marshal.Copy(structPtr, bytes, 0, size);
Marshal.FreeHGlobal(structPtr);
return bytes;
}

总是显示int size = Marshal.SizeOf(structObj);这行错误，求指教

[threenewbee]

using System;
using System.Collections.Generic;
using System.Runtime.InteropServices;
using System.Linq;
using System.Text;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            StructToBytes(new Student() { name = new string[] { "123", "123", "123", "123", "123" }});
        }

        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi, Pack = 1)]
        struct Student
        {
            public int number;
            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 5)]
            public String[] name;
        }

        public static byte[] StructToBytes(object structObj)
        {
            int size = Marshal.SizeOf(structObj);
            byte[] bytes = new byte[size];
            IntPtr structPtr = Marshal.AllocHGlobal(size);
            Marshal.StructureToPtr(structObj, structPtr, false);
            Marshal.Copy(structPtr, bytes, 0, size);
            Marshal.FreeHGlobal(structPtr);
            return bytes;
        }
    }
}

[guoxijun]

[Quote=引用 1 楼 caozhy 的回复:]

C# code
using System;
using System.Collections.Generic;
using System.Runtime.InteropServices;
using System.Linq;
using System.Text;

namespace ConsoleApplication1
{
class Program
{
s……
[/Quote]
我在接收之后用这个函数解释出来是乱码
public static object BytesToStuct(byte[] bytes,Type type)
{
int size = Marshal.SizeOf(type);
if (size > bytes.Length)
{
return null;
}
IntPtr structPtr = Marshal.AllocHGlobal(size);
Marshal.Copy(bytes,0,structPtr,size);
object obj = Marshal.PtrToStructure(structPtr, type);
Marshal.FreeHGlobal(structPtr);
return obj;
}

又是怎么回事？

[sdl2005lyx]

楼主，Student这个结构体，C++里是怎样定义的？