# E10.1.600.30 - Strange form behavior

**URL:** <https://www.epiusers.help/t/e10-1-600-30-strange-form-behavior/50690>\
**Category:** Epicor ERP 10\
**Tags:** customization\
**Created:** [December 17, 2018, 4:57pm UTC](https://www.epiusers.help/t/e10-1-600-30-strange-form-behavior/50690 "2018-12-17T16:57:35Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![JeffSanders](https://www.epiusers.help/user_avatar/www.epiusers.help/jeffsanders/32/11196_2.png) [@JeffSanders](https://www.epiusers.help/u/JeffSanders)\
**Post date:** [December 17, 2018, 4:57pm UTC](https://www.epiusers.help/t/e10-1-600-30-strange-form-behavior/50690/1 "2018-12-17T16:57:35Z")

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On the UD15 form I added a combo box and a bunch of numeric controls. Based on the selection in the combo box, I set some of the numeric controls to read only = true. If I enter a value in one of the numeric controls that is readonly = false. and tab out, all of the numeric controls become readonly = false. Any ideas on what is causing this and how to stop it?

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**Author:** ![bordway](https://www.epiusers.help/user_avatar/www.epiusers.help/bordway/32/30753_2.png) [@bordway](https://www.epiusers.help/u/bordway)\
**Post date:** [December 18, 2018, 9:03pm UTC](https://www.epiusers.help/t/e10-1-600-30-strange-form-behavior/50690/2 "2018-12-18T21:03:59Z")

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I wonder if you are setting readonly in the control properties?

If the field(s) properties are somehow being automatically changed in the EpidataView, taking precedence?

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**Author:** ![Rich](https://www.epiusers.help/letter_avatar_proxy/v4/letter/r/35a633/32.png) [@Rich](https://www.epiusers.help/u/Rich)\
**Post date:** [December 19, 2018, 12:07am UTC](https://www.epiusers.help/t/e10-1-600-30-strange-form-behavior/50690/3 "2018-12-19T00:07:14Z")

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In the Epicor Client, the data controls the UI elements and the Epi-Controls respond to the Extended Properties “metadata” defining both a column and a cell. You do not color a control, you color the data; You do not disable a control, you disable the data. We do this so that any control displaying the data - individual field, Grid, or control added via Customization - will display and managed the data in the same way.

Use Row Rules and the UI will behave as you expect.