Django使用内联表单集进行表单验证

I have a main form and three inline forsets all on one HTML page for the purpose of creating Estimates for customers. The "main" form's primary key is used as the foreign key for all three inline formsets. I can create new estimates, save them, change the data, etc. no problem. However, it only works if all the required data is present and is "valid". I have a main form and three inline forsets all