how to create array of Qcombobox

TheCipo76

i need to create an array of Qcombobox

i've tried to create different combobox

comboBox_Origine_1
comboBox_Origine_2
comboBox_Origine_3

now i have to populate the comboboxes with a loop ( i = 0 to 10)

how can i point to anyone?

comboBox_Origine_+i->additem("ESTERNA");

this is the errors displayed:

/Users/matteomissora/EasyGest/inserisciarticolo.cpp:13: error: use of undeclared identifier 'comboBox_Origine_'

/Users/matteomissora/EasyGest/inserisciarticolo.cpp:13: error: member reference type 'QString' is not a pointer; did you mean to use '.'?

/Users/matteomissora/EasyGest/inserisciarticolo.cpp:13: error: no member named 'additem' in 'QString'

i've tried both with

comboBox_Origine_ & QString::number(i)->additem("ESTERNA");

errors:

/Users/matteomissora/EasyGest/inserisciarticolo.cpp:14: error: use of undeclared identifier 'comboBox_Origine_'

/Users/matteomissora/EasyGest/inserisciarticolo.cpp:14: error: member reference type 'int' is not a pointer

i've to convert "i" index to a pointer??

JonB

@TheCipo76
You cannot access a variable name with anything like your comboBox_Origine_+i.

If you stick to three distinct variables, you must address them as their full variable name, adjusting your code to reference the right one as appropriate.
If instead you create an array/list of comboboxes, they won't have their own variable names, and you can address the desired one via arrayOfCombos[i].
Finally you could give each a setObjectName(QString("comboBox_Origine_") + QString.number(i)) (maybe not exact syntax for adding a number to a string, I'm not C++, you can figure that one) and then use "find widget by object name" to address the desired one.

TheCipo76

ok, i understand that i can't access to combobox as i tried..
this in my problem..

i have to populate not 3 but 10 combobox with a loop as i wrote
this is the reason for which I would want use a cycle..

i don't find with google search any example how to create and use an array of combobox

JonB

@TheCipo76
That's because there isn't anything special to say about "an array of combobox". It's just an array. You know how to handle that, don't you?

# create 100 comboboxes
QComboBox *array[100];
for (int i = 0; i < 100; i++)
{
    array[i] = new QComboBox;
    layout->addWidget(array[i]);
}

# access a particular combobox out of the array
QComboBox *aComboBox = array[50];

TheCipo76

ok i understand..

thank you very much

SGaist

Hi,

Using a QVector<QComboBox *> might be a better idea for easier handling.