E2459 VCL style classes must be constructed using operator

[jewel87]

Hello,
I am working on a program which uses a dynamic array of Employee class objects, the array is defined in EmployeeList class.
When i am calling a function from my form to enter or display Employee object data i'm getting errors:
[C++ Error] E2459 VCL style classes must be constructed using operator new.
(I'm using Borland Builder 6)
This is the code where it points to

void __fastcall TForm1::CreateEmployeeButtonClick(TObject *Sender)
{
        theEmployeeList.addEmployee(Size);
 
        theEmployeeList.getEmployee(i).create(EnterEmployeeName,
                                             EnterEmployeeSurname,
                                             EnterEmployeeSocialNumber,
                                             EnterEmployeeSalary);
}
 

The function create() is defined in the Employee class:

 
void Employee :: create(TEdit &EnterEmployeeName,
                        TEdit &EnterEmployeeSurname,
                        TEdit &EnterEmployeeSocialNumber,
                        TEdit &EnterEmployeeSalary)
{
        //initialise data
        FirstName = EnterEmployeeName.Text;
        Surname = EnterEmployeeSurname.Text;
        Salary = StrToFloat(EnterEmployeeSocialNumber.Text);
        SocialNumber = StrToInt(EnterEmployeeSalary.Text);
 
}
 

I was thinking this could do with the dynamic array allocation, tried in many ways but don't get anywhere. This is the way i do it in EmployeeList class:

 
Employee *myEmployeeList[10];
 
 
void EmployeeList :: addEmployee(&int SIZE)
{
                myEmployeeList[SIZE]=new Employee();
                SIZE++;
                ListSize = SIZE;
}
 
 
Employee EmployeeList :: getEmployee(int index)
{
        return myEmployeeList[index];
}
 
 
 

What am i doing wrong and what does this error mean?
Can't find any info on the web. ;(

[weaknessforcats]

void __fastcall TForm1::CreateEmployeeButtonClick(TObject *Sender)
{
theEmployeeList.addEmployee(Size);

theEmployeeList.getEmployee(i).create(EnterEmploye eName,
EnterEmployeeSurname,
EnterEmployeeSocialNumber,
EnterEmployeeSalary);
}

Visual Component Library (VCL)objects must be created using the new operator and not someting like malloc.

But the code above doesn't jibe with your error since no objects are being created. Worse, the function argument isn't used at all. And even worse, there is some object (theEmployeeList) somewhere and an i and a bunch of other arguments that don't appear to be part of a TForm1 object.

You may need to post more of your code.

BTW: I did a Google on "VCL class" and got 2,520 web pages. Surely there must be info there.

[jewel87]

Visual Component Library (VCL)objects must be created using the new operator and not someting like malloc.

But the code above doesn't jibe with your error since no objects are being created. Worse, the function argument isn't used at all. And even worse, there is some object (theEmployeeList) somewhere and an i and a bunch of other arguments that don't appear to be part of a TForm1 object.

You may need to post more of your code.

BTW: I did a Google on "VCL class" and got 2,520 web pages. Surely there must be info there.

I am using new operator to allocate my array objects, VCL class as i understand are the standart objects in the form, but how can i create them using 'new'? theEmployeeList is an object of EmployeeList class, and the parameter in the function is created automatically when u are working with the forms, i didn't create it. Info on VCL class doesn't help me tosort out this error..
;(

[weaknessforcats]

Who created the object theEmployeeList ?? You or the VCL library??

If it was you, you need to use the new operator.

and the parameter in the function is created automatically when u are working with the forms, i didn't create it.

I was just noticing that the TObject* argumnet was never used inside the function but a wwhole bunch of other stufff was. I don't know where this other stuff comes from.

You may need to post on VCL forum at Borland to answer this question.

[jewel87]

Who created the object theEmployeeList ?? You or the VCL library??

If it was you, you need to use the new operator.



I was just noticing that the TObject* argumnet was never used inside the function but a wwhole bunch of other stufff was. I don't know where this other stuff comes from.

You may need to post on VCL forum at Borland to answer this question.

Ok, thank you anyway, i'll be trying..

[jewel87]

In case if anyone comes accross same thing, I changed the arguments pass by reference for function create, to passing pointers, this resolved the errors.