Qt ComboBox->addItem() Integer to Qstring conversion error?

Question

I am really new to Qt and I have a little question for you. I am trying to work on ComboBox and when I add items to a combobox an integer like;

 combobox->addItem(class.value); // class.value is an integer

It just adds a symbol to the combobox (*, / or ? ) How can I solve this little problem ?

teukkam · Accepted Answer · 2012-03-12 08:45:49Z

5

Try combobox->addItem(QString::number(class.value));

answered Mar 12, 2012 at 8:45

teukkam

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Comments

secretgenes · Accepted Answer · 2017-08-09 10:39:57Z

1

Use QVariant . Advantage of using QVariant over QString::number() is you can convert data of any type to any other type.

int to string

 QVariant(32).toString(); //assuming calss.value to be int

in your case it will be

combobox->addItem(QVariant(class.value).toString());

float to a string

QVariant(3.2).toString();

string to a float:

 QVariant("5.2").toFloat();

it is that easy.

answered Aug 9, 2017 at 10:39

secretgenes

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