# Selecting Cells on Patch Surface

**URL:** https://discourse.paraview.org/t/selecting-cells-on-patch-surface/4365
**Category:** ParaView Support
**Created:** [May 19, 2020, 3:54am UTC](https://discourse.paraview.org/t/selecting-cells-on-patch-surface/4365 "2020-05-19T03:54:50Z")
**Posts on this page:** 1
**Showing post:** 3

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### Author: ![carl](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/c/ee7513/32.png) [@carl](https://discourse.paraview.org/u/carl)
#### Post date: [May 19, 2020, 4:34pm UTC](https://discourse.paraview.org/t/selecting-cells-on-patch-surface/4365/3 "2020-05-19T16:34:06Z")

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Mathieu,  
Thanks for the help, what you propose should work, however when I try and select the cells with Find Data I get an error. This is for a simple case where i import my multi-block data and then try to select the cells on the Block ID associated with my patch (Block ID = 7).

What am I doing something wrong?

 ![image](https://discourse.paraview.org/uploads/default/original/2X/8/8dd3ef53312e90706e4e066d37c1a2cf1aa582a4.png)

 ![image](https://discourse.paraview.org/uploads/default/original/2X/9/9b5a263597fe2f52e79d0c2fa2ad6be096d84f22.png)

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