Slicer Scripted Module not calling updateParameterNodeFromGUI when UI is updated

Development
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1

Hi everyone,

I am working on python module for slicer and am running into a weird issue where my updateParameterNodeFromGUI function is not being called when I interacted with the UI. Is there a signal I may have broken somewhere in the module?

Any help on figuring out what is going on here would be greatly appreciated.
Thanks!

2

Can you see an error message in the Python interactor? Are you sure the signal and the slot functions are connected in the setup function of the widget class?

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3

You need to connect each GUI element with the callback to updateParameterNodeFromGUI with lines like:

self.ui.myNodeSelectionWidget.connect("currentNodeChanged(vtkMRMLNode*)", self.updateParameterNodeFromGUI)

or

self.ui.myCheckBox.connect("toggled(bool)", self.updateParameterNodeFromGUI)

in the setup() function of the widget class

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4

I can’t believe I overlooked something so obvious haha. This was the solution I forgot to add in my connections.

Thanks!