How to remove a thousand separators in the numeric text field in Xamarin.Forms DataForm (SfDataForm)

public class DataFormBehavior : Behavior<ContentPage>
    {
        SfDataForm dataForm;
        protected override void OnAttachedTo(ContentPage bindable)
        {
            base.OnAttachedTo(bindable);
            dataForm = bindable.FindByName<SfDataForm>("dataForm");
            dataForm.AutoGeneratingDataFormItem += DataForm_AutoGeneratingDataFormItem;
        }
        private void DataForm_AutoGeneratingDataFormItem(object sender, AutoGeneratingDataFormItemEventArgs e)
        {
            if (e.DataFormItem != null)
            {
                if (e.DataFormItem.Name == "BirthYear")
                {
                    (e.DataFormItem as DataFormNumericItem).EnableGroupSeparator = false;
                }
            }
        }
        protected override void OnDetachingFrom(ContentPage bindable)
        {
            base.OnDetachingFrom(bindable);
            dataForm.AutoGeneratingDataFormItem -= DataForm_AutoGeneratingDataFormItem;
        }
    }