Inputting values to GUI

[gsabhishek]

I am using a line edit on my gui...I need to get the values entered on the text field when i press go....thats not happening...everything goes fine if i hard code those values...please help!!

void MainWindow:n_pushButton_clicked()
{



QLineEdit lineEdit;
QLineEdit lineEdit_2;
QLineEdit lineEdit_3;



int n=lineEdit.text().toInt();
int rows=lineEdit_2.text().toInt();
int columns=lineEdit_3.text().toInt();
qDebug()<<n;



its showing n as '0'...I have not even initialised n..

[Radek]

If you have written something like your code snippet then the line edits are local in on_pushButton_clicked() and, most likely, shadowing the "right ones" line edits. You are entering values in the "right ones" line edits but the local ones are left empty. That's why you are getting nulls.
(1) see the output of the line edits as QStrings (remove toInt()). Are the strings empty? Do they contain what they should?
(2) see the result of the toInt() (do not default the first toInt() parameter). Is the result state true?