CODEWITHSUNDEEP
pythonpython-3.xpyqtpyqt5qformlayout
FreshOuttaTheBag
FreshOuttaTheBag

Reputation: 105

Get text from a QLineEdit in a QFormLayout using itemAt

I'm currently working on a program where, in a QFormLayout, I have two columns of QLineEdits. The first column I have stored in a list (meaning they are easily accessible), while the second column isn't stored in a variable or list. I'm trying to access the texts of the QLineEdits in the second column, but am always running into an error.

I currently have no intentions of using a second list/ dictionary to grant access to the second column, as using the getWidgetPosition and itemAt functions should provide an easier route for access to these values.

from PyQt5.QtWidgets import *

app = QApplication([])
window = QWidget()

layout = QFormLayout()
entry1 = QLineEdit()
layout.addRow(entry1,QLineEdit())

ePos = layout.getWidgetPosition(entry1)
text = layout.itemAt(ePos[1],ePos[0]+1).text()
print(text)


window.setLayout(layout)
window.show()
app.exec_()

The above code is just an example that's close to the code that I'm trying to use. For some reason, accessing the text of the second column of QLineEdits isn't possible as I get this error message:

Traceback (most recent call last):
    File "sampleProblem.py", line 11, in <module>
      text = layout.itemAt(ePos[1],ePos[0]+1).text()
 AttributeError: 'QWidgetItem' object has no attribute 'text'

Upvotes: 3

Views: 4339

Answers (2)

Dennis Jensen
Dennis Jensen

Reputation: 224

Okay I got a slightly different answer more of a helper to the answer but I took the code and did the following: when printing the text failed I printed the object at those coordinates and got a PyQt5.QtWidgets.QWidgetItem. I then verified this by looking up the QWidgetItem and getting one of its known attributes and printing that. So yes while eyllanesc's answer is most likely correct I am hoping that this added information helps you with it a bit more.

from sys import exit as sysExit

from PyQt5.QtCore import *
from PyQt5.QtGui  import *
from PyQt5.QtWidgets import *

class MainWindow(QWidget):
    def __init__(self):
        QWidget.__init__(self)

        self.LaidOut = QFormLayout()
        self.Entry = QLineEdit()
        self.LaidOut.addRow(self.Entry, QLineEdit())

        self.setLayout(self.LaidOut)

        ePos = self.LaidOut.getWidgetPosition(self.Entry)
        print('EPos :',ePos)
#        text = self.LaidOut.itemAt(ePos[1],ePos[0]+1).text()
        print('Text :',self.LaidOut.itemAt(ePos[1],ePos[0]+1).isEmpty())

if __name__ == "__main__":
    MainThred = QApplication([])

    MainGUI = MainWindow()
    MainGUI.show()
    sysExit(MainThred.exec_())

Still curious as to the why do it the harder more complex way?

Upvotes: 0

eyllanesc
eyllanesc

Reputation: 243965

The itemAt() method of the layouts returns a QLayoutItem, the QLayoutItem encapsulates another layout or another widget, then to get the widget (in your case QLineEdit) you must use the widget() method, and then just get the text.

import sys
from PyQt5 import QtWidgets

if __name__ == '__main__':
    app = QtWidgets.QApplication(sys.argv)
    window = QtWidgets.QWidget()
    layout = QtWidgets.QFormLayout(window)
    entry1 = QtWidgets.QLineEdit()
    layout.addRow(entry1, QtWidgets.QLineEdit())

    i, j = layout.getWidgetPosition(entry1)
    widget_item = layout.itemAt(i, j+1)
    widget = widget_item.widget()
    text = widget.text()
    print(text)

    window.show()
    sys.exit(app.exec_())

Upvotes: 3

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