Format a Date Field to Another Formatting

[Blair285268942h5r]

I worked on a Tool that can build PDF Forms. In this tool, I defined a DateTime field. I genereated an PDF Form which has a candenler that can allow user to choose the date. But the formatting is not what I wanted(see the image below). We wanted it shows MM/DD/YYYY

I posted formatting issue before which is about currency formating, the code is like this:

var Minisalary = this.getField("MiniSalary");
Minisalary.setAction("Format", "event.value = formatCurrency(event.value);");

So, I am wondering if we can do simialir code, like below to realize it, but I tried serval ways, it failed. 

var date= this.getField("my field");
date.setAction("Format", "event.value = ???;");

[Bernd Alheit]

What version of Adobe Acrobat does you use?

[Blair285268942h5r]

Adobo Pro DC

[Bernd Alheit]

There you can use the format "MM/DD/YYYY" for the date field. 

[Blair285268942h5r · Accepted solution]

Could you please help on the coding?

var Date= this.getField("StartDate");
Date.setAction("Format", "event.value = formatDate ("MM/DD/YYYY");");

I don't know what function should be used here.

[Blair285268942h5r]

Sorry for confusion, please ingore the currency fomatting, the function formatDate is user-defined. Anyhow, the problem is fixed, and using below code:

//Date format MM/DD/YYYY, Business is a subtree, CurrentDate is a field under it. That needs a '_' between them. 
var CurrentDate = this.getField("Business_CurrentDate");
var requiredFormat = "mm/dd/yyyy";
CurrentDate.setAction("Format", "AFDate_FormatEx(\""+requiredFormat+"\")");
CurrentDate.setAction("Keystroke", "AFDate_KeystrokeEx(\""+requiredFormat+"\")");