Flask WTF


1. Create a Simple Form

from flask_wtf import FlaskForm
from wtforms import StringField, SubmitField

class MyForm(FlaskForm):
    name = StringField('Name')
    submit = SubmitField('Submit')

2. Form Validation

from flask_wtf import FlaskForm
from wtforms import StringField, SubmitField, validators

class MyForm(FlaskForm):
    name = StringField('Name', validators=[validators.DataRequired()])
    submit = SubmitField('Submit')

3. Custom Validators

from flask_wtf import FlaskForm
from wtforms import StringField, SubmitField, validators

class MyForm(FlaskForm):
    name = StringField('Name', validators=[validators.DataRequired(), my_custom_validator])
    submit = SubmitField('Submit')

4. Form Fields with Default Values

5. Handling Errors

6. Populating Form Data from Model

7. Using FieldList

8. Nested Forms

9. File Upload

10. CSRF Protection

11. Custom Error Messages

12. Form Translation

13. Conditional Validation

14. SelectField

15. RadioField

16. CheckboxField

17. HiddenField

18. DateField

19. TimeField

20. DateTimeField

21. IntegerField

22. FloatField

23. DecimalField

24. Form Validation with AJAX

25. Custom Validation with AJAX

26. Form Submission with AJAX

27. Populating Form Data with AJAX

28. HTML5 Validation

29. Custom Field Widgets

30. Custom CSS Styling

31. Handling Multiple Forms on the Same Page

32. Conditional Field Rendering

33. File Upload with Multiple Files

34. Field Grouping

35. Dynamic Form Creation

36. Multi-step Form