How to load a custom MVC Form Field control from the IFormEntryCreatedEvent event and get its model?

How to use IFormEntryCreatedEvent and read value from the properties of MVC widget?

The following is an example intended to help as a reference: 

private void FormEntryCreatedEventHandler(IFormEntryCreatedEvent eventInfo)
{
    var entryId = eventInfo.EntryId;
    var userId = eventInfo.UserId;
    var username = eventInfo.Username;
    var ipAddress = eventInfo.IpAddress;
    var submissionTime = eventInfo.SubmissionTime;
    var formId = eventInfo.FormId;
    var formName = eventInfo.FormName;
    var formTitle = eventInfo.FormTitle;
    var formSubscriptionListId = eventInfo.FormSubscriptionListId;
    var controls = eventInfo.Controls;

    var formManager = FormsManager.GetManager();
    //retrieve the whole form
    var form = formManager.GetForms().Where(f => f.Id == formId).FirstOrDefault();

    //loop trough form widgets
    foreach (var widget in controls)
    {
        //perform action for certain widget only
        if(widget.FieldName.Contains("TextFieldController"))
        {
            var formWidget = formManager.GetControl<FormControl>(widget.Id);
            var allWidgetProperties = formWidget.Properties
                                     .Where(p => p.Name == "Settings").FirstOrDefault().ChildProperties
                                     .Where(p => p.Name == "Model").FirstOrDefault().ChildProperties
                                     .Where(p => p.Name == "MetaField").FirstOrDefault();

            //get the value of specific property Description
            //change the name of the property to access other widget
            var descriptionTextProperty = allWidgetProperties.ChildProperties.Where(p => p.Name == "Description").FirstOrDefault().Value;
        }
    }
}

Sitefinity Documentation, form events #Iformentrycreatedevent https://www.progress.com/documentation/sitefinity-cms/for-developers-forms-events#iformentrycreatedevent