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.