Reference Guide
Reference Guides / JavaScript API / Events / RegisterOnFormFieldChanged
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    RegisterOnFormFieldChanged
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     RegisterOnFormFieldChanged

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

    RegisterOnFormFieldChanged: function (docuViewareID, callback)

    Parameters

    docuViewareID
    The identifier for the DocuVieware™ instance.
    callback
    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 () {
        RegisterOnFormFieldChangedOnDocuViewareAPIReady();
    }, false);