CODESYS Date/Time Picker in Dialog does not update value on close (focus issue) – any workaround?

charleskirkland — Wed, 20 May 2026 10:15:11 -0000

I have seen similar behavior with some visualization controls in CODESYS. It seems the Date/Time Picker only commits the value after losing focus, so closing the popup immediately with the OK button can skip the update. One possible workaround is forcing focus to another control before closing the dialog or adding a short delay before executing the close action.
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CODESYS Date/Time Picker in Dialog does not update value on close (focus issue) – any workaround?

phuvutran — Wed, 20 May 2026 09:43:08 -0000

Hi everyone,

I am working with CODESYS 3.5.21 and using the Date/Time Picker inside a dialog (popup visualization).

I noticed a behavior that seems problematic:

The Date/Time Picker does NOT update the bound variable immediately.
It only updates when the control loses focus/select.

This causes an issue in my dialog:

User selects a new date/time
Immediately presses OK (which closes the dialog)
The new value is NOT saved
The variable still contains the old value

So it seems the Date/Time Picker still holds the value internally and does not commit it before the dialog is closed.

Recent posts to CODESYS Date/Time Picker in Dialog does not update value on close (focus issue) – any workaround?

CODESYS Date/Time Picker in Dialog does not update value on close (focus issue) – any workaround?

CODESYS Date/Time Picker in Dialog does not update value on close (focus issue) – any workaround?