knockout checkbox event

[vivek...@gmail.com]

present address <input data-bind="value: pratt"/><br>

<input type="checkbox" data-bind="event:{change: same}"/><br>

Permanent address <input data-bind="value: pmadd"/><br>

<script>

function AppViewModel() {

    this.pratt = ko.observable("");

    this.pmadd = ko.observable("");

    this.same = function(){

        $(abc ).toggle(); 

        var abc = this.pradd();

        this.pmadd(abc);

    }

}

ko.applyBindings(new AppViewModel());

</script>

I want to get value from first textbox to another on button click and on uncheck remove the value in textbox

[Rachel Silver]

You can easily make a function that you bind to a button click to handle grabbing the text. As for the unchecking of the checkbox, I'd probably go ahead and make a manual subscription to the value rather than using the event binding.

http://knockoutjs.com/documentation/observables.html#explicitly_subscribing_to_observables

http://jsfiddle.net/XDWh9/

[vivek...@gmail.com]

THanks,but i want only checkbox,when it is checked copy,when unchecked clear the field.

[vivek...@gmail.com]

What if second textbox has value and on uncheck the checkbox revert back to the original data.