using System;
using System.Collections.Generic;
using System.Text;
using System.Web.UI.WebControls;
using NHibernate;
using RoomsHere.DataLayer;
using RoomsHere.BusinessLayer;
namespace RoomsHere.JabaControls
{
    public class JabaDropDownList : DropDownList 
    {
        public JabaDropDownList()
            : base()
        {
            //Standard for this framework.
            this.DataTextField = "DisplayText";
            this.DataValueField = "Id";
        }

        public T GetSelectedEntity<T>() where T : class
        {
            if (this.SelectedValue == null) return null;

            long id = Convert.ToInt64(this.SelectedValue);
            ISession session = DL.SessionFactory.OpenSession();
            using (session)
            {
                T entity = session.Load(typeof(T), id) as T;
                return entity;
            }
        }

        /// <summary>
        /// Sets the selected entity.
        /// </summary>
        /// <param name="selectedItems">The selected items.</param>
        public void SetSelectedEntity(IPrimaryKey selectedItem)
        {
            if (selectedItem == null) return;
            this.SelectedIndex = -1;
            for (int i = 0; i < this.Items.Count; i++)
            {
                ListItem item = this.Items[i];
                if (Convert.ToInt64(item.Value) == selectedItem.Id)
                    item.Selected = true;
            }
        }
    }

}