byte列をstructにする

構造体

[StructLayout( LayoutKind.Sequential, Pack = 1 )]
public struct Hoge
{
    /// <summary>     6:コード</summary>
    [MarshalAs( UnmanagedType.ByValArray, SizeConst = 6 )]
    public byte[]   Code;
}

変換関数

static public object ToStr( byte[] byteData, Type type )
{
    GCHandle gch = GCHandle.Alloc( byteData, GCHandleType.Pinned );
    object result = Marshal.PtrToStructure( gch.AddrOfPinnedObject(), type );
    gch.Free();
    return result;
}

使い方

Hoge dataL = (Hoge)ToStr( byData, typeof( Hoge ) );