Calendar Blockout/disable/hide of Future Dates

Question

Has Appian developed this functionality as yet? 
 
 The use case here is i have certifications that are being uploaded, however i do not want to allow the issued date to be a future date. 
 
 There is validation on the field, however from a UX point of view this will result in the user clicking the date, seeing the error and then having to redo the work. 
 
 This error is avoidable if the calendar prevents it 
 
 Any help would be appreciated

Mike Schmitt · Answer

Aside from doing something completely different, like populating specific dates into a dropdown, or implementing your own mini-calendar interface using available components (which is doable but tricky), pretty much your only option is to rely on field-level validations.

Robert Shankin · Answer

One thing you can do, in addition to your validation is to default the date to a week|month|year in the past. 
 With the inclusion of instructions that guide against future dating, this will greatly reduce the likelihood that the date selected is in the future. 
 Alternatively, if you really just can’t abide by the functionality of date pickers for your use case, you can construct your own date capture with either a text field or a collection of day, month and year drop downs that comply with your validation proactively.