how to get lineEdit content which is created dynamically?

[aurora]

In my program i'm creating lineEdit widget dynamically whenever a user enters "ADD" button.
But i'm not able to access the text of that dynamically created lineEdit.
my code is as follows...

on_pushButton_ADD_clicked()
{
QLineEdit *lineEdit = new QLineEdit;
    QLabel *label = new QLabel;
  ui->gridLayout->addWidget( label,LayoutCount,0 );
    ui->gridLayout->addWidget( lineEdit,LayoutCount,1 );
.................
}

on_pushButton_ADD_clicked()
{
QLineEdit *lineEdit = new QLineEdit;
    QLabel *label = new QLabel;
  ui->gridLayout->addWidget( label,LayoutCount,0 );
    ui->gridLayout->addWidget( lineEdit,LayoutCount,1 );
.................
}

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for accessing the dynamically created lineEdit i'm trying as follows..

KeyList.append(ui->gridLayout->lineEdit->text());

KeyList.append(ui->gridLayout->lineEdit->text());

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But i'm getting error....
Please help me.!!!!!!