[pyqt maya] How to revert when input fails a Validator?

Coding
1

Can i setup a QDoubleValidator on a specific column of a QTreeWidgetItem to reject bad values? QTreeWidgetItem does’t inherit the setValidator() method from anyone…

Currently, I have a custom function attached to the QTreeWidget’s “itemChanged” Signal to catch the value and validate it before performing any actions, but I can’t quite figure out how to the revert value back to the original value…?

2

If you create a delegate, you could install the validator on the QLineEdit that it generates in the createEditor function, that’s probably the best way. It’s pretty basic to subclass QStyledItemDelegate and just overload createEditor.

3

thanks! that is exactly what I was looking for.