# Datatable virtualization error selecting cell

**URL:** <https://community.plotly.com/t/datatable-virtualization-error-selecting-cell/66530>\
**Category:** Dash Python\
**Tags:** question\
**Created:** [July 29, 2022, 7:05am UTC](https://community.plotly.com/t/datatable-virtualization-error-selecting-cell/66530 "2022-07-29T07:05:15Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![Buntie](https://avatars.discourse-cdn.com/v4/letter/b/eb9ed0/32.png) [@Buntie](https://community.plotly.com/u/Buntie)\
**Post date:** [July 29, 2022, 7:05am UTC](https://community.plotly.com/t/datatable-virtualization-error-selecting-cell/66530/1 "2022-07-29T07:05:15Z")

</div>

I tried to use `virtualization=True` for large data.  
while i was checking on localhost i clicked to a cell in column 1 at the top of table and then scrolled down to the bottom of table and clicked a cell in column 2, the debug mode told me …

_**Cannot read properties of undefined (reading ‘column\_2’)**_

i found the similar question [**here**](https://github.com/plotly/dash-table/issues/447) but it closed.  
so i don’t know how to handle this issue, could someone guide me about it?

**versions:**  
dash==2.5.1  
dash-core-components==2.0.0  
dash-html-components==2.0.0  
dash-renderer==1.9.1  
dash-table==5.0.0