How to enable checkbox activity in TableView

Mikeeeeee

Hi!
In PyQt, I made checkboxes in the TableModel using this flag (column 1):

    def data(self, index, role=None):
        if   index.column() == 0 and role == 0:
            return self.id[index.row()]
        elif index.column() == 1 and role == 10:
            return self.checked[index.row()]
        elif index.column() == 2 and role == 0:
            return self.nameCd[index.row()]
        return None

How to enable checkbox activity in TableView?
If I do this, the program crashes on the penultimate line

    def flags(self, index):
        result = super(ModelCdViewer, self).flags(index)
        print(result)
        if index.column() == 1 :
            result |= Qt.ItemIsUserCheckable
        return result

It is too not works:

self.ui.tableView.setEditTriggers(QtWidgets.QAbstractItemView.AllEditTriggers)

JonB

@Mikeeeeee said in How to enable checkbox activity in TableView:

elif index.column() == 1 and role == 10:

Why 10?

The def flags() is what you need to enable checkboxes. Your code looks good to me. Try it again? :)

Mikeeeeee

@JonB 10 because this is how the checkbox appears in the cell with true/false.
How do I enable cell editing?

JonB

@Mikeeeeee
OK, now I understand Qt.CheckStateRole == 10, might be better if you used the constant like you did for Qt.ItemIsUserCheckable.

A moment ago you were asking

How to enable checkbox activity in TableView?

Now you say

How do I enable cell editing?

What is your question?

Mikeeeeee

Me need enable checkbox activity in TableView.
If I do this with checkboxes, then after clicking on the checkbox, the program breaks. Probably after changing the checkbox.

    def flags(self, index):
        result = super(ModelCdViewer, self).flags(index)
        print(result)
        if index.column() == 1 :
            result |= QtCore.Qt.ItemIsUserCheckable
            # result |= QtCore.Qt.ItemIsEditable
        return result

If I do this with text input, then after changing the text, the program breaks down

    def flags(self, index):
        result = super(ModelCdViewer, self).flags(index)
        print(result)
        if index.column() == 2 :
            result |= QtCore.Qt.ItemIsEditable
        return result

How do I save checkbox values?

Mikeeeeee

I tried to do this, but the program still crashes. What else does the program need?

    def setData(self, index, value, role=QtCore.Qt.EditRole):
        if not index.isValid():
            return False

        if index.column() == 1:
            print(value)
            print(self.checked[index.row()])
            if self.checked[index.row()]:
                self.checked[index.row()] = False
            else:
                self.checked[index.row()] = True
            print(self.checked[index.row()])
            
            # self.checked[index.row()] = value
            self.dataChanged().emit(index, index)
            return True

        return False

Mikeeeeee

it is work

    def flags(self, index):
        result = super(ModelCdViewer, self).flags(index)
        if index.column() == 1 :
            result |= QtCore.Qt.ItemIsUserCheckable
            # result |= QtCore.Qt.ItemIsEditable
        return result

    def setData(self, index, value, role=QtCore.Qt.EditRole):
        if not index.isValid():
            return False

        if index.column() == 1:
            print(value)
            print(self.checked[index.row()])

            if self.checked[index.row()]:
                self.checked[index.row()] = False
            else:
                self.checked[index.row()] = True

            print(self.checked[index.row()])

            # self.checked[index.row()] = value
            # self.dataChanged().emit(index, index)
            return True

        return False

JonB

@Mikeeeeee said in How to enable checkbox activity in TableView:

self.dataChanged().emit(index, index)

This is wrong. Should be

self.dataChanged.emit(index, index)