PyQT how to get all of the selected checkboxes

poordev123

I have an application with 16 checkboxes on it and based on which ones are checked I will set certain values with that. My problem is that I don't want to have to say

if self.ui.checkbox_1.isChecked():
    ....
elif self.ui.checkbox2.isChecked():
    ....
else:
    ....

for all 16 of the checkboxes. Is there a way to just say something along the lines of

checkbox_list = []
for checkbox in checkbox_container:
    if checkbox.isChecked():
        checkbox_list.append(checkbox)

or is there a built in way to do this?

JonB

@poordev123
You have to set this up yourself. One way is just to go:

self.checkbox_list = [ self.ui.checkbox_1, self.ui.checkbox2, ...   ]

once and then re-use that. That's laziest/simplest.

Another way is to use

checkbox_list = whatever_parent_they_all_have.findChildren<QCheckBox *>();

That's C++ syntax, it's something very similar in Python. The function is QObject.findChildren() to look up, I think it might be just widget.findChildren(QCheckBox). That does a recursive descent to find all widgets of desired type.

poordev123

@JonB Thanks for your answer, I appreciate it. One question I have though, by parent do you mean the groupbox that they are in? Or the actual parent object of the checkbox class from qt?

jeremy_k

@poordev123 said in PyQT how to get all of the selected checkboxes:

I have an application with 16 checkboxes on it and based on which ones are checked I will set certain values with that. My problem is that I don't want to have to say
if self.ui.checkbox_1.isChecked():
    ....
elif self.ui.checkbox2.isChecked():
    ....
else:
    ....
for all 16 of the checkboxes. Is there a way to just say something along the lines of
checkbox_list = []
for checkbox in checkbox_container:
    if checkbox.isChecked():
        checkbox_list.append(checkbox)

These two snippets don't do the same thing. The first one implements an exclusive group. The second allows multiple check boxes to be acted on.

or is there a built in way to do this?

QButtonGroup -

QButtonGroup provides an abstract container into which button widgets can be placed. It does not provide a visual representation of this container (see QGroupBox for a container widget), but instead manages the states of each of the buttons in the group.

JonB

@poordev123 said in PyQT how to get all of the selected checkboxes:

by parent do you mean the groupbox that they are in?

Yes.

Or you can go down @jeremy_k's QButtonGroup approach. Are your checkboxes indeed intended to be exclusive from your elif code?