Sunji-posv-net/pos/POSV.TableTemplate/Tabs/DishMenuItem.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using POSV.Entity;
using POSV.MessageEvent;
using System.Threading.Tasks;

namespace POSV.Tabs
{
    [ToolboxItem(false)]
    public partial class DishMenuItem : AbstractTabItem
    {
        private Table _table = null;

        public DishMenuItem(Table table = null)
        {
            InitializeComponent();

            this._table = table;

            this.BackColor = Color.Transparent;

            this.categoryControl.CategoryCheckedChanged += OnCategoryCheckedChanged;
        }

        protected override void OnLoad(EventArgs e)
        {
            base.OnLoad(e);

            if (this.DesignMode) return;

            Task.Factory.StartNew(() =>
            {
                this.Invoke(new Action(() =>
                {
                    string sql = SqlConstant.ProductExtAll;

                    PreLoadProduct(sql);

                }));

            });
        }

        private void OnCategoryCheckedChanged(object sender , Component.CategoryEventArgs e)
        {
            var productType = e.Data;

            string template = SqlConstant.ProductExtAll;
            if (!Constant.ALL_PRODUCT_TAG.Equals(productType.No))
            {
                template = SqlConstant.ProductExtAll + " and typePath like '{0}%';";
            }

            string sql = string.Format(template , productType.Path);

            this.PreLoadProduct(sql);

        }

        private void PreLoadProduct(string sql , KeyboardAction action = KeyboardAction.None)
        {
            try
            {
                var lists = new List<ProductExt>();

                using (var db = Global.Instance.OpenDataBase)
                {
                    lists = db.Fetch<ProductExt>(sql);
                }

                this.productControl.PageNumber = 1;

                this.productControl.BindDataSource(lists , action);
            }
            catch (Exception ex)
            {
                LOGGER.Error(ex , "加载菜品信息异常");
            }
        }

        private void OnBackClick(object sender , EventArgs e)
        {
            bool isGo = true;

            if (isGo)
            {
                MsgEvent.Send(Constant.TABLE_ORDER_DISHS_NOTIFY , null);
            }
        }
    }
}