>Hi, Dear All,
> I wanna create a class based on Form class and with all the proeperties and Methods. For some defination is about the dataenvironment. Is there any good ideas?:)

Robin,

If you create a base form class you can then either use the CREATE FORM FormName AS cClassName FROM cClassLibraryName syntax or use the template form option on the Forms tab of the Options dialog, the form will have a dataenvironment you can modify and changes in the base class will be reflected on the form.