I´m trying to set RequiredValidator on a CheckBoxList in a Form.
CheckBoxList-Value is linked to an PageProperty which represents an array.
But the Validator-warning does not show when I klick form submit button…
When I set the options of the CheckBoxList manually, the RequiredValidator works.
But I want to bind the CheckBoxList-options to an array coming from the database, just like I found here: Dynamic One-to-Many Checkbox List? - the RequiredValidator does not work with those settings.
Is it possible to use the RequiredValidator with my configuration?