Reference Guide
Reference Guides / JavaScript API / Events / RegisterOnFormFieldChanged
In This Topic
    In This Topic

    This function allows you to trigger a function of your own when a form field value has been changed.

    RegisterOnFormFieldChanged: function (docuViewareID, callback)


    The identifier for the DocuVieware™ instance.
    The function you want to execute on event.
    The callback provides an argument having a prototype { id, pageNo}.
    - id specifies the form field id.
    - pageNo is the page number the form field that has been changed is on.

    Return Value

    1 if error.

    Example of usage

    This JavaScript makes sure the DocuVieware control is properly loaded and initialized and then subscribes to the event on load.

    function RegisterOnFormFieldChangedOnDocuViewareAPIReady() {
        if (typeof DocuViewareAPI !== "undefined" && DocuViewareAPI.IsInitialized("DocuVieware1")) {
            DocuViewareAPI.RegisterOnFormFieldChanged("DocuVieware1", function (field) { console.log(field); });
        else {
            setTimeout(function () { RegisterOnFormFieldChangedOnDocuViewareAPIReady() }, 10);
    document.addEventListener("DOMContentLoaded", function () {
    }, false);