How to read out the text from QLineEdit in python?
As mentioned in the documentation, the text of a QLineEdit
can be retrieved with its method text
.
text = dlg.ui.lineEdit.text()
Note that it's a QString
, not a regular string, but that shouldn't be a problem as you format it with your "%s" % text
.
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Updated on September 27, 2020Comments
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I have created for my plugin a start GUI with 3 buttons. This works very well and if I click on one of the buttons a specific action is started. So far this works. If I click on one of the buttons a new GUI with two buttons "ok" and "cancel" and a lineedit appears. If I push on cancel the GUI will be closed, if I push on ok, I want the program to read the text from the editline and store it in a variable. This doesnßt work so far.
Here is the class containing the dialog:
from PyQt4.QtCore import pyqtSlot from PyQt4.QtGui import QDialog, QLineEdit from ui_grz import Ui_Dialog class grzDialog(QDialog): def __init__(self): QDialog.__init__(self) # Set up the user interface from Designer. self.ui = Ui_Dialog() self.ui.setupUi(self)
This is the class that contians the structure of the GUI after creating the GUI with QT Designer and the command pyuic4:
from PyQt4 import QtCore, QtGui try: _fromUtf8 = QtCore.QString.fromUtf8 except AttributeError: _fromUtf8 = lambda s: s class Ui_Dialog(object): def setupUi(self, Dialog): Dialog.setObjectName(_fromUtf8("Dialog")) Dialog.resize(387, 153) self.buttonBox = QtGui.QDialogButtonBox(Dialog) self.buttonBox.setGeometry(QtCore.QRect(30, 110, 341, 32)) self.buttonBox.setOrientation(QtCore.Qt.Horizontal) self.buttonBox.setStandardButtons(QtGui.QDialogButtonBox.Cancel|QtGui.QDialogButtonBox.Ok) self.buttonBox.setObjectName(_fromUtf8("buttonBox")) self.label = QtGui.QLabel(Dialog) self.label.setGeometry(QtCore.QRect(10, 10, 361, 51)) self.label.setObjectName(_fromUtf8("label")) self.lineEdit = QtGui.QLineEdit(Dialog) self.lineEdit.setGeometry(QtCore.QRect(10, 60, 351, 31)) self.lineEdit.setObjectName(_fromUtf8("lineEdit")) self.retranslateUi(Dialog) QtCore.QObject.connect(self.buttonBox, QtCore.SIGNAL(_fromUtf8("accepted()")), Dialog.accept) QtCore.QObject.connect(self.buttonBox, QtCore.SIGNAL(_fromUtf8("rejected()")), Dialog.reject) QtCore.QMetaObject.connectSlotsByName(Dialog) def retranslateUi(self, Dialog): Dialog.setWindowTitle(QtGui.QApplication.translate("Dialog", "GRZ Analyse", None, QtGui.QApplication.UnicodeUTF8)) self.label.setText(QtGui.QApplication.translate("Dialog", "<html><head/><body><p><span style=\" font-weight:600;\">Bitte geben Sie hier den Schwellenwert für die GRZ-Analyse ein:</span></p><p>Bitte achten Sie auf eine korrekte Schreibweise (bspw. 2.5):</p></body></html>", None, QtGui.QApplication.UnicodeUTF8))
And in this class I need the variable:
# Import the PyQt and QGIS libraries from PyQt4.QtCore import * from PyQt4.QtGui import * from qgis.core import * # Import the code for the dialog from ubgrzdialog import grzDialog class quickAnalysis: def __init__(self, iface): # Save reference to the QGIS interface self.iface = iface def grzAnalysis(self): dlg = grzDialog() dlg.show() result = dlg.exec_() if result == 1: text = dlg.text() QMessageBox.information(self.iface.mainWindow(),"test", "%s" %(text), QMessageBox.Ok)
This is only one short part of the class, but this is the part where I have the question how to read the text from the LineEdit widget.
Do you have any ideas or suggestions?
Thanks and sorry if this is a double post, but I haven´t found an appropriate answer for my problem.