结构体数组嵌套结构体数组

Question

        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi, Pack = 1)]
        public struct BleGattCharacteristicSate_T
        {
            public UInt16 Handle_s;
            public UInt16 Handle_e;
            public Byte Properties;
            public UInt16 Uuid;
            public UInt16 ConfigHandle;
            public UInt16 ConfigUuid;
        }

        [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi, Pack = 1)]
        public struct BleGattServeiceState_T
        {
            public UInt16 Handle_S;
            public UInt16 Handle_E;
            public UInt16 Uuid;
            public Byte CharacteristicLen;
            [MarshalAs(UnmanagedType.ByValArray, ArraySubType = UnmanagedType.Struct, SizeConst = 20)]
            public BleGattCharacteristicSate_T[] Characteristic;
        }

        public static BleGattServeiceState_T[] BleGattServeice = new BleGattServeiceState_T[20];

上面是我想申明的结构体,但是在            public BleGattCharacteristicSate_T[] Characteristic;申明中,并没有得到new,使得元素Characteristic不能使用,

请问正确的申明方式?

谢谢!

Answer 1

Hi,

感谢你在MSDN论坛发帖。

如果你想声明下面这种结构体:

typedef struct _MYARRAYSTRUCT  
{  
   bool flag;  
   int vals[ 3 ];   
} MYARRAYSTRUCT;  

可能需要这样写:

[StructLayout(LayoutKind.Sequential)]
public struct MyArrayStruct
{
    public bool flag;
    [MarshalAs(UnmanagedType.ByValArray, SizeConst=3)]
    public int[] vals;
}

我也找到相关的文档，关于声明结构体的。希望对你有所帮助.

https://msdn.microsoft.com/ZH-CN/library/eshywdt7%28v=vs.110%29.aspx?f=255&MSPPError=-2147217396https://msdn.microsoft.com/ZH-CN/library/hk9wyw21(v=vs.110).aspx

Best Regards,

Hart

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Answer 2

谢谢回复

Answer 3

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