We're using Umbraco forms.

And we would like to extend it with new activities and new types of questions/answers.

As part of it we would like to listen to next and back buttons and call web services while pressing these buttons. We succeeded to do it for the last submit button by using this code however we couldn't achieve it for back/next buttons.

Our code below. Appreciate you help.

Thank you in advance

Regards, Moshe

public class RegisterEvents : ApplicationEventHandler {

    protected override void ApplicationStarted(UmbracoApplicationBase umbracoApplication, ApplicationContext applicationContext)
    {
        RecordStorage.RecordInserting += RecordStorage_RecordInserting;
        FormStorage.Saved += FormStorage_Saved;
          public void RecordStorage_RecordInserting(object sender, RecordEventArgs e)
     {
        Field item = e.Form.AllFields.FirstOrDefault(x => x.Caption == "חתימה");
        e.Record.RecordData = e.Record.RecordData.Substring(0, e.Record.RecordData.IndexOf(",'" + item.Id)) + "'}";
        e.Form.AllFields.Remove(item);
        return;
    }