How to enabled button, when i changed lineedit`s text ?

**wagmare** · 13th August 2009, 08:08

BUTON_IS_ENABLED ( )

this should be a private slot like
void make_button_enable();

inside make_button_enable()
set button->setEnabled(true);

Do I write this code, all lineedits connect ?

yes u have to ... to truncate lines u can use QList<QLineEdit *> but it is very tedious for simple connect ()

**newermind** · 13th August 2009, 08:16

In this dialog change anything, these are lineedits, textedits or combo box.

For i make button enabled, Do i have to control all widgets ?

**yogeshgokul** · 13th August 2009, 08:19

Originally Posted by newermind

In this dialog change anything, these are lineedits, textedits or combo box.
For i make button enabled, Do i have to control all widgets ?

It seems like, you want to enable buttons, for any keyboard event. So instead of controlling all widgets, use event filter. Look for QKeyEvent. In this event, enable all your buttons.

**aamer4yu** · 13th August 2009, 08:43

Do I write this code, all lineedits connect ?

Yes.. connect( m_ui->line_edit_1, SIGNAL( textChanged(const QString &) ), this, SLOT( BUTON_IS_ENABLED ( ) ) ); is connectting only line_edit_1 to the slot..
U will need to connect all line edits to ur slot..

also make sure ur function is declared as a SLOT - private/public slots: