Object Names

[slava]

If I have let's say 100 line edits and I need to write Hello! to each of those, can I just cycle through the object names with one command in the cycle, something like:

for (int c = 0; c < 100; c++) {
 
    lineEdit_c->setText("Hello!");
 
 
}

for (int c = 0; c < 100; c++) {

    lineEdit_c->setText("Hello!");


}

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I know the above example is weird, but is there a way to do something similar? I have something like a hundred lines code working with a tableWidget (taking data from a file and fill in the cells) but then there are 15 tableWidgets needs to be handled in same way. There will be no changeSignal or any other signals emmited.

[franz]

Make a QList<QLineEdit *>. Then step through the line edits:

QList<QLineEdit *> lineEditors;
 
...
// you can do this:
foreach (QLineEdit *editor, lineEditors) {
    editor->doSomething();
}
 
// or this:
for (int i = 0; i < lineEditors.count(); i++) {
    lineEditors[i]->doSomething();
}
 
// or use the java-style QMutableListIterator or the standard c++ QList::iterator

QList<QLineEdit *> lineEditors;

...
// you can do this:
foreach (QLineEdit *editor, lineEditors) {
    editor->doSomething();
}

// or this:
for (int i = 0; i < lineEditors.count(); i++) {
    lineEditors[i]->doSomething();
}

// or use the java-style QMutableListIterator or the standard c++ QList::iterator

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Anyway, this is a rather basic thing incorporated in several languages. Do some reading up on C++ (www.cplusplus.com).

[slava]

Thank you very much. Yeah, I agree I'm missing some basics and should catch up on that. But I have now resolved that particular thing which economized me something like 3000 lines of code, thank you very much again.

[aamer4yu]

You can also use QObject::children, iterate over them, type cast them into QLineEdit, and if valid set the text to "hello"

[slava]

O, that's goot idea too, thank you.