QTextEdit -> add Text

[ape]

Hello

i am new to Qt itself and playing around with the examples.
At the moment i am trying to build a small RS232 flash application.

The idea was to have a scrollable TextField which should be used to log each action
forced by the user.

So i have added a QTextedit (scrollable and offers the option to make it readonly...great)
Now my problem is as follows:

Each time i am trying to add new text to that QTextEdit the complete application crashes.

i.e. in the OpenFile Dialog (dummy Style righrt now)

void MainWindow::openFileDialog()
{
// Dummy File select dialog
// Method 1: Limit location and limit file-types
QString fileName = QFileDialog::getOpenFileName(this, tr("Select Firmware"),
                                                "/",
                                                tr("All (*.*)"));
 
// Now we want to add an entry into our logging QTextEdit at the Main window)
// this idea results in a crash
loggingBox->setText("open file dialog was selected")
//
// Trying something diffrent ....just clearing the text inside Logging Box
// this idea results in a crash too
loggingBox->clear();
}

void MainWindow::openFileDialog()
{
// Dummy File select dialog
// Method 1: Limit location and limit file-types
QString fileName = QFileDialog::getOpenFileName(this, tr("Select Firmware"),
                                                "/",
                                                tr("All (*.*)"));
         
// Now we want to add an entry into our logging QTextEdit at the Main window)
// this idea results in a crash
loggingBox->setText("open file dialog was selected")
//
// Trying something diffrent ....just clearing the text inside Logging Box
// this idea results in a crash too
loggingBox->clear();
}

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in the main section....how i call the function above

selectFileButton = new QPushButton(handleFlashBox);								// new QPushButton
selectFileButton->setGeometry(QRect(12,25,100,20));								
selectFileButton->setStatusTip(QString::fromUtf8("Press Select to choose the new firmware."));	
selectFileButton->setToolTip(QString::fromUtf8("Press SELECT to choose the new firmware."));	
connect(selectFileButton, SIGNAL(clicked()), this, SLOT(openFileDialog()));

selectFileButton = new QPushButton(handleFlashBox);								// new QPushButton
selectFileButton->setGeometry(QRect(12,25,100,20));								
selectFileButton->setStatusTip(QString::fromUtf8("Press Select to choose the new firmware."));	
selectFileButton->setToolTip(QString::fromUtf8("Press SELECT to choose the new firmware."));	
connect(selectFileButton, SIGNAL(clicked()), this, SLOT(openFileDialog()));

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Any idea what i am doing wrong ?

do i have to save the existing text in a string variable first, then add the new text-part to that string and then insert the string-content to my loggingBox maybe ?

Based on a search in the mailinglist someone posted this idea:

textedit->setText( textedit->text() + "some more text" );
// in my case
loggingBox->setText( loggingBox->text() + "new text");
// but seems like QTextEdit has no member named 'text'

textedit->setText( textedit->text() + "some more text" );
// in my case
loggingBox->setText( loggingBox->text() + "new text");
// but seems like QTextEdit has no member named 'text'

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Best regards
ape