Having asked a question recently about casting a byte buffer to a struct and receiving an excellent response from Mattias Sjorgen (sorry about that o ;) which resulted in the following code

struct rec01
 ushort rt
 ..

byte[] buffer = new byte[512]
rec01 rec

// fill buffer with dat

unsafe
 fixed (byte *p = buffer) {
   rec = *((rec01*)p)
 

Now this works, but I am now stuck on something else...  The structures I want to replicate in c# from c++ are of the type

struct rec01
 __int16 rt
 char id[10]
 char name[32]
 ..

I've tried using the following for the id field
[MarshalAs(UnmanagedType.ByValTStr, SizeConst=10)
string id;

and
[MarshalAs(UnmanagedType.ByValArray, SizeConst=10)
byte[] id;

but both yield the same compile error on the above buffer/struct cast !

Does anybody have any ideas or is this type of thing not possible in c#

Thanks in advance