narsil/Tanshu.Accounts.Helpers/SelectWaiter.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Linq;
using Tanshu.Accounts.Contracts;
using Tanshu.Data;
using Tanshu.Accounts.Entities;

namespace Tanshu.Accounts.Helpers
{
    public class SelectWaiter : Tanshu.Data.BaseSelector<Waiter>
    {
        public event WaiterEventHandler WaiterEvent;
        public SelectWaiter(GetData<Waiter> getData, bool autoClose) : base(getData, true, "Select a Waiter") 
        {
            var filters = new List<string> {"Name"};
            SetFilterColumns(filters);
            grid.Columns["WaiterID"].Visible = false;
        }

        protected override void FilterChanged(Dictionary<string, string> filter)
        {
            //data = originalData.Where(d => d.Name.ToLower().Contains(filter["Name"].ToLower())).ToList();
            data = getData(filter);
            bindingSource.DataSource = data;
        }
        protected override void UpdateDisplay(Waiter item)
        {
            DisplayLabel = item == null ? "" : string.Format("Waiter Name: {0}", item.Name);
        }

        protected override Waiter HandleKeydown(object sender, ExtendedKeyEventArgs e)
        {
            var waiter = bindingSource.Current as Waiter;

            if (WaiterEvent == null)
            {
                e.Handled = false;
                return waiter;
            }

            var eventArgs = new SelectorEventArgs<Waiter>(null,SelectorAction.Insert);
            switch (e.KeyCode)
            {
                case Keys.F1:
                    {
                        waiter = new Waiter { Name = base.filterColumns["Name"].Trim() };
                        eventArgs = new SelectorEventArgs<Waiter>(waiter,SelectorAction.Insert);
                        break;
                    }
                case Keys.F2:
                    {
                        if (waiter != null)
                            waiter.Name = base.filterColumns["Name"].Trim();
                        eventArgs = new SelectorEventArgs<Waiter>(waiter,  SelectorAction.Update);
                        break;
                    }
                case Keys.F8:
                    {
                        if (waiter != null)
                            eventArgs = new SelectorEventArgs<Waiter>(waiter,  SelectorAction.Delete);
                        break;
                    }
            }
            if ((waiter != null) && ((e.KeyCode == Keys.F1) || (e.KeyCode == Keys.F2) || (e.KeyCode == Keys.F8)))
                waiter = WaiterEvent(sender, eventArgs);

            e.Handled = eventArgs.Handled;
            return waiter;
        }
        #region Designer Code
        /// <summary>
        /// Required designer variable.
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <summary>
        /// Clean up any resources being used.
        /// </summary>
        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        #region Windows Form Designer generated code

        /// <summary>
        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor.
        /// </summary>
        private void InitializeComponent()
        {
            this.components = new System.ComponentModel.Container();
        }

        #endregion
        #endregion
    }
    public delegate Waiter WaiterEventHandler(object sender, SelectorEventArgs<Waiter> e);
}