Different types in connections

  • That is more a question a about best design using the qt classes. I have done a program and several times I have to perform some conversion from string(QLineEdit for example) to double and vice versa. I would like to know from more experience programmer if it is better to use QVariant to all basic types or you use other approach.

  • Lifetime Qt Champion


    Generally when you have to do such conversions often, the first question that comes to my mind is: am I using the right tool ?

    For number input, you should rather use QSpinBox or QDoubleSpinBox, if you need another type you can even subclass QAbstractSpinBox.

    Hope it helps

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