In the class of a data type, I have an activity (method: Obj-Validate) which carries out a validation (validation rule in this data type class as well).
This activity is referenced in an action set (event: Change, action: Run Activity) of a grid in a section in another work class. However, an error message with the validation message (“Correct X”) appears (“Errors: InputProperty: **Correct X”), when the input property InputProperty of the grid is validated for incorrect input.
By the way, I tried validation differently, by creating a similar validation rule and an activity in the other work class (of the section including the grid). However, by referencing this alternative activity in a Refresh-This section action, the validation works fine, but this is not preferred (as the whole section refreshes on change of a single input).
I am not sure how the run activity with validation rule worked for you, because run activity is used to execute the logic in the server and to manipulate the clipboard data it will not return any response back to the client.
Can you please provide screenshots of your UI and the grid configuration ?