这些是我的结构
[StructLayout(LayoutKind.Sequential)]
public struct DeptDetails
{
[MarshalAs(UnmanagedType.I4)]
public int depid;
[MarshalAs(UnmanagedType.I2)]
public short noemp;
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 8)]
public empDetails[] emp;
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 8)]
public string deptname;
}
[StructLayout(LayoutKind.Sequential)]
public struct empDetails
{
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 4)]
public string empname;
[MarshalAs(UnmanagedType.I4)]
public int empid;
}
我通过套接字发送它
structures.DeptDetails Details = new structures.DeptDetails();
Details.depid = 123;
Details.noemp= 3;
Details.emp= new structures.empDetails[Details.noemp];
Details.emp[0].empname= "xyz";
Details.emp[0].empid= 1;
Details.scrips[1].empname="abc"
Details.scrips[1].empid = 2;
Details.scrips[2].empname= "pqr"
Details.scrips[2].empid= 6;
Details.deptname= "PYTHON";
int bytesSend = senderSock.Send(MainModule.struc.StructureToByteArray(Details));
StructureToByteArray
方法包含:
public 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);
Marshal.FreeHGlobal(ptr);
return arr;
}
但是我无法发送数据...我的例外是:
无法封送类型,因为嵌入式数组实例的长度与布局中声明的长度不匹配。
例外非常明显:
。嵌入式数组实例的长度与布局中声明的长度不匹配
因此,您实例化了一个大小与声明大小不同的数组(声明为 8,实例化为 3(,因此无法封送该数组。