why i can't put struct to Generic::List

  • Thread starter Thread starter shengmin.ruan
  • Start date Start date
S

shengmin.ruan

the wrong code is:

[StructLayout(LayoutKind::Sequential)]
public ref struct OutPacket{
int index;
List<MainInfo^>^ mainInfos;
};

[StructLayout(LayoutKind::Sequential)]
public ref struct MainInfo{
String^ value1;
String^ value2;
};

----------
the error message is:
Error 1 error C2065: 'MainInfo' : undeclared identifier


please help me ,thank u
 
[StructLayout(LayoutKind::Sequential)]
public ref struct OutPacket{
int index;
List<MainInfo^>^ mainInfos;
};

[StructLayout(LayoutKind::Sequential)]
public ref struct MainInfo{
String^ value1;
String^ value2;
};
Click to expand...

Try swapping the declarations. When you declare OutPacket, MainInfo is still
unknown because its declaration is placed after the declaration to
OutPacket.
Declaring MainInfo first takes care of that problem.

--

Kind regards,
Bruno van Dooren
(e-mail address removed)
Remove only "_nos_pam"
 
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