add a new entry/delete in my array with custom option in my dropdown list

[hackertom]

i want a user add new entry in array when write custom text to dropdown list e.g.:

var MyItems = new Array(
" ",
"apple",
"orange",
"mango",
);
MyItems.sort();
this.getField("Dropdown7").setItems(MyItems);

user write in dropdown list : apple system return message this value is in array!

user write Banana

var MyItems = new Array(
" ",
"apple",
"banana",
"orange",
"mango",
);
MyItems.sort();
this.getField("Dropdown7").setItems(MyItems);

also if user want to delete a entry in my array how to solve this on PDF mode?

[Thom Parker · Accepted solution]

Here's an article that covers this exact issue, and there is a download sample:

https://acrobatusers.com/tutorials/list_and_combo_in_lc

Here is another more complete discussion on lists in Acrobat

https://www.pdfscripting.com/public/List-Field-Usage-and-Handling.cfm