Adding infinite text fields

[Mkers12]

I'm writing a program that starts with 2 text fields. The user enters in an Id in the first field and name in the second field. Then he hits the add button. Once the add button is hit, I'd like 2 more empty text fields to appear below the ones that already have text in them to allow another entry and the process to be repeated.

Is it possible to do this and allow the user to add infinite text fields? Please let me know if I'm not being clear.

Thanks!

[sde]

are we talking web program or not?

[Mkers12]

nope, no web program

[sde]

i'm no java gui programming expert, but maybe you can use the ArrayList object to create a dynamic array of text fields. in the onclick action of the button, just add 2 more text fields to the array list. ( or 1 button to each of the 2 array lists )

you may want to create a variable for y position of your buttons. you will modify this when the button is clicked too.

i don't have much experience with java gui programming, but this is how i'd do it in c#. sorry it's only theory, but i hope it helps.

[Belisarius]

I'm no good with GUI's, but yeah, you certainly should be able to do it. I'd start off by trying to add the text fields via the action of a button.

[DavH27]

You want to create an unlimited amount of text fields?! Why would the user sit there and fill in this infinate amount of text boxes?!

I think I see how you can do this easily. At least I do using vb6 again this is theory...

Create all the text fields you would possibly need then assign which ones to make 'invisible'.

When the add button is clicked, certain text boxes become visible again.

This is eaisly done in vb6 but I've never touched Java in my life. I only came in here out of both boredom and curiosity!

[Belisarius]

That'd get you smacked by a proper coder. In Java, you can add these things on the fly. Just be sure to put it inside a ScrollPane or something, lest your window grow in size too much.

[Mkers12]

Correct me if I'm wrong here, but in order to declare a new text field I have to create a name for it right? And then add it to my frame (or Scroll Pane) like this:

private JFormattedTextField idText1 = new JFormattedTextField();

this.getContentPane().add(idText1, new XYConstraints(5, 5, 125, 25));

To do this dynamicly, would I use an array or arraryList (not too familar w/that) to store/create the name of the new text field?

[Belisarius]

I'm not sure exactly how Swing does it, but you should be able to simply add a new text field on the fly, without using an ArrayList. I honestly don't know.