qlineedit

I am working on set a click() event to QLineEdit, I already successfully did it. But I want to go back to Mainwindow when the QLine Edit is clicked because I need the data in Mainwindow to further process the data. But I failed to let it go back, neither nor to cite the Mainwindow as parent, I hope someone can point it out. Thank you so much. MainWindow { ... self.tc = MyLineEdit(self.field[con.ConfigFields.VALUE])#self.tc = wx.TextCtrl(self.parent, -1, str(field[con.ConfigFields.VALUE]), pos=(x+220, y-3), size=(200, -1)) ... } class MyLineEdit(QtGui.QLineEdit): def __init__(self, parent

I know that you can change the color of a line edit, so long as all the text is the same color, but is it possible to assign different colors to characters? That is, some characters are red, and some are black, or simply every character has a different color. There is a similar question here - How can I change color of part of the text in QLineEdit? , but in my case there is an additional constraint - the QLineEdit must preserve color positions when edited, while new text that is entered assumes some default color. The other question does not have that constraint. It does have an answer that

Say I have 10 names in a QListWidget (which is hidden) and an a QLineEdit . Now if I type the letter "a" in the line Edit it should display a drop down of all those name in the list widget that begin with the letter "A". the user could select using a mouse or a keyboard (since there will be a vertical scroll-bar). I am not sure if a QLineEdit could do this. But I would like to know what is out there to accomplish this. Nejat You can use QCompleter which provides a way for autocompletion in widgets like QLineEdit and QComboBox . When the user starts typing a word, QCompleter suggests possible

I want a line edit which accepts an ip address. If I give input mask as: ui->lineEdit->setInputMask("000.000.000.000"); It is accepting values greater than 255. If I give a validator then we have to give a dot(.) after every three digits. What would the best way to handle it? lpapp It is accepting value greater than 255. Absolutely, because '0' means this : ASCII digit permitted but not required. As you can see, this is not your cup of tea. There are at least the following ways to circumvent it: Write a custom validator Use regex Split the input into four entries and validate each entry on its

I'm trying to change the background color of the QLineEdit and I can't figure it out at all. I tried using stylesheets originally like this QLineEdit *le = new QLineEdit(); le->setStyleSheet("background:#000;"); but that didn't do anything. I tried using QPalette like this QPalette palette; palette.setColor(QPalette::Base, Qt::black); palette.setColor(QPalette::Background, Qt::black); le.setPalette(palette); but this didn't do anything either. I've been looking all day and can't find anything. am I doing something wrong or is there another way to do it? Works fine for me: QLineEdit *le = new