How to display individual character of a string?

[cooper]

hi everyone,

i want to display individual character from a string.

for example, i have a string ls:

QString ls = "iamastring";

QString ls = "iamastring";

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i want to display the character one by one on the screen.
i tried to use a loop, but i get "invalid type error". here is my code:

for (int j = 0; j <= ls.length(); j ++) 
     ui->label_temp->setText(ls[j]);

for (int j = 0; j <= ls.length(); j ++) 
     ui->label_temp->setText(ls[j]);

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can anyone give me a help, please？
thanks in advance.

[aamer4yu]

Thats because setText expects a QString argument and QString:perator[] returns QChar.

You might want to try - ui->label_temp->setText(QString(ls.at(j)));
used at() instead of [] as at() is faster and u dont really need a reference in this case.
Hope this helps

[cooper]

Thats because setText expects a QString argument and QString:perator[] returns QChar.

You might want to try - ui->label_temp->setText(QString(ls.at(j)));
used at() instead of [] as at() is faster and u dont really need a reference in this case.
Hope this helps

yes, it's very helpful. thanks for your quick reply.