# UDT Parameter on Perspective view

**URL:** <https://forum.inductiveautomation.com/t/udt-parameter-on-perspective-view/23061>\
**Category:** Ignition Early Access\
**Created:** [March 5, 2019, 7:56am UTC](https://forum.inductiveautomation.com/t/udt-parameter-on-perspective-view/23061 "2019-03-05T07:56:02Z")\
**Posts on this page:** 1\
**Page:** 2

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**Author:** ![ggross](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/ggross/32/12668_2.png) [@ggross](https://forum.inductiveautomation.com/u/ggross)\
**Post date:** [May 6, 2024, 4:31pm UTC](https://forum.inductiveautomation.com/t/udt-parameter-on-perspective-view/23061/21 "2024-05-06T16:31:11Z")

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@Robbe_Meyvis, sorry for the delay in a response as I was on vacation the last week.

Without seeing the configuration of the `trommelProgramma` param, I am missing a bit of information to be able to troubleshoot.

Attached you will find:

1. An export of a UDT and UDT Instance that resembles the configuration in your screen.
2. An export of a view that is setup to use this UDT Def as a Drop Target

I am thinking that something isn't setup completely correctly in the `props.dropConfig` area of the view you are setting up to be dropped as the values aren't populating.

A couple ways to troubleshoot:

1. In `embedded/UDTDropView`, modify `params.trommelProgramma` to contain the path to the UDT Instance you are expecting to validate that values are showing for.
2. After dropping the UDT Instance onto a new view, there will be an `embeddedView` component. Look at the `props.params.trommelProgramma` value to see the value that was set.

There is also a known issue where you might get values, but when changing them they may not change the value of the tag when making the change in the designer. If this occurs, make sure that `Project > Comm Read/Write` is enabled as the Designer does not throw an error that it is in Read Only mode.

Example of attached items in use:

Attached Files:  
[UDTParameterExample\_Tags\_View.zip](https://forum.inductiveautomation.com/uploads/short-url/8AsXdP0bCeF3jsbSHMbcuLPf6CG.zip) (9.4 KB)

Hopefully this helps.

Garth

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