# Cannot use public method of qMRMLNodeComboBox

**URL:** <https://discourse.slicer.org/t/cannot-use-public-method-of-qmrmlnodecombobox/14607>\
**Category:** Support\
**Created:** [November 15, 2020, 12:31am UTC](https://discourse.slicer.org/t/cannot-use-public-method-of-qmrmlnodecombobox/14607 "2020-11-15T00:31:26Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![mau\_igna\_06](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/mau_igna_06/32/9056_2.png) [@mau\_igna\_06](https://discourse.slicer.org/u/mau_igna_06)\
**Post date:** [November 15, 2020, 12:31am UTC](https://discourse.slicer.org/t/cannot-use-public-method-of-qmrmlnodecombobox/14607/1 "2020-11-15T00:31:26Z")

</div>

Here there is a method called setShowHidden

> **[Slicer: qMRMLNodeComboBox Class Reference](https://apidocs.slicer.org/master/classqMRMLNodeComboBox.html#a724b4b712d2ce76ee2164085e08bd67f)**

  
I try the following code in the python interactor and it doesn’t work and it should:

```auto
inputComboBox = slicer.qMRMLNodeComboBox()
inputComboBox.setShowHidden(False)

```

It gives the following error:

```auto
Traceback (most recent call last):
  File "<console>", line 1, in <module>
AttributeError: qMRMLNodeComboBox has no attribute named 'setShowHidden'

```