display number on label

[aj2903]

hii..
I want to display number on the label;
I can do this by following code :

int num;
QString qstr = QString::number(num);
ui.label->setText(qstr);

int num;
QString qstr = QString::number(num);
ui.label->setText(qstr);

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my problem is if the number is single digit i.e 2 i want to display it as 02 in label.
how can this be done?

[spirit]

I think like this

int num;
QString qstr = QString::number(num);
if (num <= 9 && num >= 0)
  qstr.insert(0, "0");
else if (num >= -9 && num <= 0)
  qstr.insert(1, "0");
ui.label->setText(qstr);

int num;
QString qstr = QString::number(num);
if (num <= 9 && num >= 0)
  qstr.insert(0, "0");
else if (num >= -9 && num <= 0)
  qstr.insert(1, "0");
ui.label->setText(qstr);

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[radek.z]

maybe you can aslo try QRegExp to check if it has only one digit and if yes then prepend 0

[Lesiok]

int num;
ui.label->seText(QString("%1").arg(num,2,'0'));

int num;
ui.label->seText(QString("%1").arg(num,2,'0'));

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[spirit]

int num;
ui.label->seText(QString("%1").arg(num,2,'0'));

int num;
ui.label->seText(QString("%1").arg(num,2,'0'));

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the first
you exmaple works after modification under Qt 4.5.0

ui.label->seText(QString("%1").arg(num, 2, 10, QChar('0'));

ui.label->seText(QString("%1").arg(num, 2, 10, QChar('0'));

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the second it adds zero only for positive values.

"-20"
"-19"
"-18"
"-17"
"-16"
"-15"
"-14"
"-13"
"-12"
"-11"
"-10"
"-9"
"-8"
"-7"
"-6"
"-5"
"-4"
"-3"
"-2"
"-1"
"00"
"01"
"02"
"03"
"04"
"05"
"06"
"07"
"08"
"09"
"10"
"11"
"12"
"13"
"14"
"15"
"16"
"17"
"18"
"19"
"20"