>Hello All
>
>I have a form called Form_a in this form a call another form Form_b
>
>There's any way to me refresh the form_a into form_b?
>
>I don't wanna use formsets
>
>Thanks

The simplest way is to call Form_b with parameter (form_a reference):
*** some form_a snippet
DO FORM formb WITH thisform
Then in Formb.Init you accept this parameter and use it to call Form_a from Form_b
This is oversimplified solution, but maybe it's sufficient for your situation (especially if Form_b modal form). If not, let UT know, and you will get better approach.