I need to make a calculator like this:
<input text field> x <some fixed float value> = <the result>
<input text field> x <some other fixed float value> = <the other result>
... and so on for a variable number of rows...
I need the user to input a number in one of the input text fields.
I need the other input text fields to update themselves while the user types
the number digits, so that all input fields show exactly the same number at any
time.
I need the results to update themselves also while the user types the digits.
here is my html snippet
<wicket:container wiker:id="repeating">
<input name="num" type="text" wicket:id="num" value="10,00"></input>
x
<span wicket:id="fixed">5.2</span>
=
<span name="total" wicket:id="total">52</span>
</wicket:container>
and Java code:
Label fixed = new Label("fixed", myFixedNumber);
add(fixed);
final TextField input = new TextField<>("input");
add(input);
input.add(new OnChangeAjaxBehavior()
{
@Override
protected void onUpdate(AjaxRequestTarget target)
{
// this never gets called
}
});
Label total = new Label("total");
add(total);
The problem is that onUpdate() never gets called. Please note that I'm not
using any <form> because I do not need any (I don't need the user to submit
anything), but I need to make calculations server side because the fixed value
is known there.
Is it possible to have onUpdate() called without using a form? if yes, what am
I doing wrong?
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