CArray array gives undeclared identifier compile error

[Vachaun22]

I have a class header file and in the header file I'm declaring a CArray variable as this:

[COLOR=green]CArray<FIELDOBJECTSTRUCT, FIELDOBJECTSTRUCT> m_aPageHeader;
[/color]

Then in the CPP file I'm trying to use the objects like this:

[COLOR=green]
m_aPageHeader.Add((FIELDOBJECTSTRUCT)fos);
[/color]

FIELDOBJECTSTRUCT is a structure defined in stdafx.h which is included in both the header and cpp files (I've also tried all combinations of included in one but not the other).

During compile I get the error:

error C2065: 'm_aPageHeader' : undeclared identifier

I have no clue what I need to do to use this. Could some one please help out a newb programmer? Thanks in advance.

 

[uolj]

Did you spell it correctly? Did you remember to #include the class header in the source file? Is that code inside a member function of the class? Did you remember to add the Classname:: to the function when defining that member function? Is there an error above that line of code?

 

[Vachaun22]

Yes to all of those questions except the last one. No other error.

Also, if I declare the variable immediately above where I'm trying to use the .Add method, then I don't get the compile error.

But, I can't use the variable on the stack. I need it on the heap so I can use it throughout the application.

 

[uolj]

The CArray isn't on the heap either way, it is a member of the class. Can you post a bit more code. I assume it is something like this:

// MyClass.h
// ...
CMyClass
{
public:
  // ...
  void MyFunction();
  // ...
private:
  // ...
  CArray<FIELDOBJECTSTRUCT, FIELDOBJECTSTRUCT> m_aPageHeader;
  // ...
};
// ...

// MyClass.cpp

#include "MyClass.h"
// ...
void CMyClass::MyFunction()
{
  // ...
  m_aPageHeader.Add((FIELDOBJECTSTRUCT)fos);
  // ...
}
// ...

 

[Vachaun22]

Sorry, you're right, it wouldn't be on the heap....don't know what I was thinking.

Anyway, the code you have posted is exactly what I have. I'll post the code anyway. One thing about it is, I tried using a dynamic array class first, which didn't work, then I tried with CArray (with the required afxtempl.h included), and it also didn't work.

Contents of Page.h

#pragma once

#include "stdafx.h"

class CPage
{
public:
	CPage(void);
	~CPage(void);

// Member variables
public:
	AeDynArray<FIELDOBJECTSTRUCT>	m_aPageHeader;			// array of page header objects;
	AeDynArray<FIELDOBJECTSTRUCT>	m_aPageFooter;			// array of page footer objects;

// Implementation
public:
	bool AddHeaderField(LPFIELDOBJECTSTRUCT lpFieldObject);
	bool AddHeaderField(POINT Origin,
						SIZE Size,
						LOGFONT Font,
						string FieldName = "",
						string Caption = "",
						string Text = "",
						string Expression = "",
						ACTIONS Action = Blank,
						string ActionField = "",
						BORDERFILL Style = None,
						char FillChar = ' ',
						int BorderWeight = 1);
};

Contents of Page.cpp

#include "StdAfx.h"
#include "Page.h"

CPage::CPage(void)
{
}

CPage::~CPage(void)
{
}

bool AddHeaderField(LPFIELDOBJECTSTRUCT lpFieldObject)
{
	FIELDOBJECTSTRUCT fos;
	memcpy( &fos, lpFieldObject, sizeof(FIELDOBJECTSTRUCT));

//	m_aPageHeader.Add( fos );

	return true;
}

bool AddHeaderField(POINT Origin,
					SIZE Size,
					LOGFONT Font,
					string FieldName,
					string Caption,
					string Text,
					string Expression,
					ACTIONS Action,
					string ActionField,
					BORDERFILL Style,
					char FillChar,
					int BorderWeight)
{
	FIELDOBJECTSTRUCT fos;
	fos.Action = Action;
	fos.ActionField = ActionField;
	fos.BorderWeight = BorderWeight;
	fos.Caption = Caption;
	fos.Expression = Expression;
	fos.FieldName = FieldName;
	fos.FillChar = FillChar;
	memcpy( &fos.font, &Font, sizeof( LOGFONT ));
	fos.ptOrigin = Origin;
	fos.Style = Style;
	fos.szSize = Size;
	fos.Text = Text;

	/*AeDynArray<FIELDOBJECTSTRUCT> m_aPageHeader;*/	/* <-- DOES NOT ERROR IF THIS LINE IS UNCOMMENTED */
	m_aPageHeader.Add( (FIELDOBJECTSTRUCT)fos );   /*  <-- LINE CAUSING error C2065: 
												    *  'm_aPageheader' : undeclared identifier */

	return true;
}

FIELDOBJECTSTRUCT is defined in StdAfx.h as the following

typedef struct tagFIELDOBJECTSTRUCT {
	// Contents
	string	FieldName;			// name of database field to use
	string	Caption;			// text placed next to field value text
	string	Text;				// used for constant text, do not set FieldName or Caption value
	string	Expression;			// a textual representation of an arithmetic expression, do not use
								// any other field values if using this
	
	// Position / Size
	POINT	ptOrigin;			// position of first occurance of field (top, left)
	SIZE	szSize;				// size of field rectangle

	// Action Codes
	ACTIONS	Action;				// action to take on field { sum, average, etc. }
	string	ActionField;		// field to take action on

	// Text formatting
	LOGFONT	font;				// Font structure containing font for this field

	// Border / Fill
	BORDERFILL	Style;			// Border / Fill style to use { Border, Fill, Both };
	char	FillChar;			// Character to fill rectangle with
	int		BorderWeight;		// Weight of border
} FIELDOBJECTSTRUCT, NEAR *PFIELDOBJECTSTRUCT, FAR *LPFIELDOBJECTSTRUCT;

And I'm trying to use AeDynArray which is included in stdafx.h using #include "aedynarray.h

 

[Vachaun22]

I figured it out. I was being braindead and missed that none of my implementation functions had the class reference in the function name.

Once I put the CPage:: in front of the functions, no more error.