Examples from "Form Optional / Required" section of the form reference: the case of an optional complex field - use form.labelstyle=none for optional simple field
Examples from "Form Optional / Required" section of the form reference: form.mustvalue - a schema-required field is *displayed* as optional when form.mustvalue=false, still the value must be present to validate
Examples from "Form Optional / Required" section of the form reference: form.mustvalue - a schema-optional field is *displayed* as required when form.mustvalue=true
A file upload with [file name default] field - the user may insert the file name or leave blank, in that case the original file name is used - submit the form with a file and check that the fields have been filed - Note that the maximum limit for thi...
Examples from "Common Particles Configuration" section of the form reference: form.mustvalue - an optional field is *displayed* as required when form.mustvalue=true