I gets this message on form with empty dataenvironment anytime (1).
You can select all object (but not inherited object from classes) and copy they to blank form and cancel all changes on current form.

(1) If I copy object from another form, which have changes field METHODS without recompilation form.

MartinJ

>I made some changes to a form and now get the error message
>

>Property setting will not take effect until data environment reloaded (Error 1739)
>

which has the text
>

>You attempted to set a property on a data environment object (Relation, Cursor) while the
>data environment is loaded. The property value will be stored with the object, but the
>property will not take effect until the data environment is unloaded and then reloaded.
>
>To unload the data environment
>
>Issue CloseTables in the form:
>[Formset.]Form.DataEnvironment.CloseTables
>To reload the data environment
>
>Issue OpenTables in the form:
>[Formset.]Form.DataEnvironment.OpenTables
>
>

>
>What does it mean and how do I fix it? Help is veryclear on what it means and how to fix it.
>
>Thanks