FWIW. I rebuild the executable and now I do not get the message. Not sure why.

Thanks for your help.

>Hi Claude,
>
>I'm sorry...
>
>Empty DE - I don't use DE in form
>re-compile a form - I have own wizard for creating form. I generate form programmatically (object, methods (I fill field METHODS) and properties) and anytime I forgot recompile form: COMPILE FORM ....
>
>I don't know what is bad. Maybe It's any internal error.
>
>MartinJ
>
>>Thansk for response. I do not really understand it. My best interpetation of what you said.
>>
>>>I gets this message on form with empty dataenvironment anytime (1).
>>
>>Data environment is not empty
>>
>>>You can select all object (but not inherited object from classes) and copy they to blank form and cancel all changes on current form.
>>
>>That is really the hearth of my question. How do I determine what is wrong. I copied form and changed the methods to be able to overwride default navicatoin buttons.
>>
>>It seems to work except for the error message.
>>
>>How do you re-compile a 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