Strings from LineEdit to Integers

Hi,

i want to calculate numbers obtained from a QLineEdit.
So i've used a QTextStream to pass the string to an integer like this:
QTextStream ts(&str);
ts << lineEditValue->text();
ts >> strInteger;
lineEditResult->setText(strInteger);
So for now i'm just trying to get the string from lineEditValue into lineEditResult via a QTextStream (then i want to pass an integer from lineEditValue into lineEditResult).

Clue anyone?
Thx,
Misko

You have QString::toUInt()to retrieve the integer value. No need for a QTextStream.

Regards

Hi Marcel,
Thx again!
Here's why I asked for it:
QString strA = lineEditA->text();
QString strB = lineEditB->text();
bool ok;
float lengthA = strA.toFloat(&ok);
float lengthB = strB.toFloat(&ok);
c = sqrt(lengthA*lengthA + lengthB*lengthB);
QString strHypothenusa = QString("%1").arg(c);
lineEditHypothenusa->setText(strHypothenusa);

As you can figure, it asks for 2 floats taken from LineEdits, calculates the hypothenusa and puts the value into another LineEdit.
Of course, no error-checking has been done (like entering negative numbers, ...). But for now is sufficient!

Regards,
Misko

Quote:

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Originally Posted by Misko

As you can figure, it asks for 2 floats taken from LineEdits, calculates the hypothenusa and puts the value into another LineEdit.
Of course, no error-checking has been done (like entering negative numbers, ...). But for now is sufficient!

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QDoubleValidator, QDoubleSpinBox