Currently we have several fields support setting limitations. Form author can customize the form on field properties panel, and set different limitations for different types of fields. For example, you can set the minimum or maximum character count in single/multiline text fields, earliest or latest date in date field, or choice selections in Multiple choices field, etc.
Here’s the help link for more details.
http://help.adobe.com/en_US/formscentral/using/index.html Design forms> Set data limits for form elements section