# Checkbox decorator in Python Plugin
**URL:** https://discourse.paraview.org/t/checkbox-decorator-in-python-plugin/7656
**Category:** Development
**Tags:** python
**Created:** [July 20, 2021, 9:01pm UTC](https://discourse.paraview.org/t/checkbox-decorator-in-python-plugin/7656 "2021-07-20T21:01:29Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@Jared\_Blanchard](https://discourse.paraview.org/u/Jared_Blanchard)
#### Post date: [July 20, 2021, 9:01pm UTC](https://discourse.paraview.org/t/checkbox-decorator-in-python-plugin/7656/1 "2021-07-20T21:01:29Z")
Is there a way to create a set of checkboxes in the GUI using vtkPythonAlgorithm decorators? Perhaps using xml?
---
### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [August 3, 2021, 8:21am UTC](https://discourse.paraview.org/t/checkbox-decorator-in-python-plugin/7656/2 "2021-08-03T08:21:02Z")
Yes, See Examples/Plugin/PythonAlgorithm
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### Author:  [@Jared\_Blanchard](https://discourse.paraview.org/u/Jared_Blanchard)
#### Post date: [August 3, 2021, 3:03pm UTC](https://discourse.paraview.org/t/checkbox-decorator-in-python-plugin/7656/3 "2021-08-03T15:03:42Z")
Thanks. I found the `dataarrayselection` property it in the `PythonCSVReader` example. I kept looking for something with the words “checkbox” in it. For those who are curious, here’s my simple implementation, adapted from the `PythonCSVReader` example.:
```auto
# Add this function to the top of your code, above the class definition
def createModifiedCallback(anobject):
import weakref
weakref_obj = weakref.ref(anobject)
anobject = None
def _markmodified(*args, **kwars):
o = weakref_obj()
if o is not None:
o.Modified()
return _markmodified
```
```auto
# add this code to the __init__ (self): function
from vtkmodules.vtkCommonCore import vtkDataArraySelection
self._arrayselection = vtkDataArraySelection()
self._arrayselection.AddObserver("ModifiedEvent", createModifiedCallback(self))
self._arrayselection.AddArray('One')
self._arrayselection.AddArray('Two')
```
```auto
# This is the checkbox property
@smproperty.dataarrayselection(name="Arrays")
def GetDataArraySelection(self):
return self._arrayselection
```
```auto
# We can access whether an array is checked or not with
self._arrayselection.ArrayIsEnabled('One') # boolean 1 or 0
self._arrayselection.ArrayIsEnabled('Two')
```