Question

I have a control that has an attribute like this

OnClientClick="checkfn( resultfn(boolval) )"

checkfn goes and displays a modal confirmation. And returns the results in resultfn(boolval) as either true or false.

How do I make OnClientClick take that value and return it. Eg. if resultfn(boolval) = true, then i want it to post back to the server, if it is false, i want to cancel.

UPDATE:

this is what checkfn does at the moment. See below.

function checkfn() {

                $("#dialog-confirm").dialog({
                resizable: false,
                height: 140,
                modal: true,
                buttons: {
                    Continue: function () {                           
                        $(this).dialog("close");
                        return true;
                    },
                    Cancel: function () {
                        $(this).dialog("close");
                        return false;
                    }
                }
            });

}

This doesn’t work because checkfn is not waiting for the dialog-confirm box before it returns something. So my idea is that I would like to put things in Continue and Cancel functions to return to resultfn(boolval) a bool which onclientclick can use.

Answer 1

You can’t make the JavaScript function called in OnClientClick “return” the value to the server, but you can populate a hidden input in the form so that in your server-side click handler, you can read the value:

OnClientClick="document.getElementById('hidden').setAttribute('value', checkfn(resultfn(boolval)))"