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using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Drawing;
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using System.Data;
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using System.Linq;
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using System.Text;
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using System.Windows.Forms;
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using POSV.Entity;
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using System.Diagnostics;
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using POSV.Utils;
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using DevComponents.DotNetBar.Metro;
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using DevComponents.DotNetBar;
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using POSV.Component;
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using POSV.ThirdPartyOrderData;
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namespace POSV.WeiXin
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{
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[ToolboxItem(true)]
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public partial class WeixinProductX : BaseUserControl
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{
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/// <summary>
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/// 商品控件默认宽度
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/// </summary>
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public const int PRODUCT_DEFAULT_WIDTH = 104;
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/// <summary>
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/// 商品控件默认高度
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/// </summary>
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public const int PRODUCT_DEFAULT_HEIGHT = 76;
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/// <summary>
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/// 数据源
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/// </summary>
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private List<ListProductSpec> _dataSource = null;
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//这样可以加快多次创建item速度，否则每次要耗时2毫秒
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private Image _defaultImage = global::POSV.Properties.Resources.圆角矩形_2x;
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/// <summary>
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/// 选中的商品列表
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/// </summary>
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public List<ListProductSpec> SelectedProducts { get; private set; } = new List<ListProductSpec>();
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/// <summary>
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/// 选中的品类
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/// </summary>
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public List<string> SelectedCategorys { get; private set; } = new List<string>();
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public WeixinProductX()
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{
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InitializeComponent();
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this.itemPanel.ResizeItemsToFit = false;
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this.itemPanel.BackgroundStyle.Class = "MetroTileGroupTitle";//很关键
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}
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protected override void OnLoad(EventArgs e)
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{
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base.OnLoad(e);
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if (this.DesignMode) return;
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ReCalSize();
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this.Resize += OnResize;
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}
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private void OnResize(object sender, EventArgs e)
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{
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switch (this.FindForm().WindowState)
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{
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case FormWindowState.Normal:
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case FormWindowState.Maximized:
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{
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ReCalSize();
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}
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break;
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}
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}
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private void ReCalSize()
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{
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//计算能显示的列数
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var _width = this.ItemWidth + this.ItemSpace - 1;
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if (_width != 0)
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{
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this.Columns = ((this.Width - this.Padding.Left - this.Padding.Right) / _width);
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}
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//根据行数，重新规划高度
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var _height = this.ItemHeight + this.ItemSpace - 1;
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if (_height != 0)
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{
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this.Rows = ((this.Height - this.Padding.Top - this.Padding.Bottom) / _height);
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}
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this.ItemHeight = (this.Height - this.Padding.Top - this.Padding.Bottom) / this.Rows - this.ItemSpace;
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BindDataSource(this._dataSource, this.SelectedCategorys);
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}
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public void BindDataSource(List<ListProductSpec> dataSource, List<string> selectedCategorys)
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{
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try
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{
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if (this.SelectedProducts == null)
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{
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this.SelectedProducts = new List<ListProductSpec>();
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}
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this.SelectedCategorys = selectedCategorys;
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if(this.SelectedCategorys == null)
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{
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this.SelectedCategorys = new List<string>();
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}
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if (dataSource == null)
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{
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dataSource = new List<ListProductSpec>();
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}
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//加入分页，避免污染源数据，新建集合
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List<ListProductSpec> list = new List<ListProductSpec>();
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if (this.SelectedCategorys.Count > 0)
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{
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var searchProductByCategorys = dataSource.FindAll(x => this.SelectedCategorys.Contains(x.categoryId));
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list.AddRange(searchProductByCategorys == null ? new List<ListProductSpec>() : searchProductByCategorys);
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this.SelectedProducts.RemoveAll(x => !this.SelectedCategorys.Contains(x.categoryId));
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}
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else
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{
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list.AddRange(dataSource);
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}
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this._dataSource = list;
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//可以考虑更优化的分摊机制？张莹
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int deltaX = this.Width - this.Padding.Left - this.Padding.Right - (this.ItemWidth + this.ItemSpace) * this.Columns - this.ItemSpace;
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int deltaY = this.Height - this.Padding.Top - this.Padding.Bottom - (this.ItemHeight + this.ItemSpace) * this.Rows - this.ItemSpace;
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this.TotalCount = this._dataSource.Count;
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this.PageSize = this.Columns * this.Rows;
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//清空历史数据
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this.itemPanel.Items.Clear();
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//复制新的数据源，进行分页运算
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var merge = WeixinProductXMerge.Merge(this.Rows, this.Columns, this._dataSource, false);
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var pager = ListPager(merge);
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ItemContainer mainContainer = new ItemContainer();
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mainContainer.Name = "productContainer";
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mainContainer.MultiLine = (this.Rows > 1);
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mainContainer.ItemSpacing = this.ItemSpace;
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mainContainer.LayoutOrientation = eOrientation.Horizontal;
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//2020-03-03 张莹 add 按照规格商品显示
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for (int i=0;i < pager.Count;i++)
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{
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ListProductSpec entity = pager[i];
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MetroTileItem item = new MetroTileItem();
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item.Name = entity.specId;
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item.Checked = false;
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item.TileStyle.PaddingLeft = item.TileStyle.PaddingRight = 0;
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item.EnableMarkup = true;
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item.OptionGroup = "product";
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item.TileStyle.BorderWidth = 0;
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//正常情况下的背景颜色
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item.TileStyle.BackColor = ColorTranslator.FromHtml("#E7EAF1");
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item.TileStyle.BackColor2 = ColorTranslator.FromHtml("#E7EAF1");
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item.TileStyle.BorderColor = ColorTranslator.FromHtml("#E7EAF1");
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item.TileStyle.BorderColor2 = ColorTranslator.FromHtml("#E7EAF1");
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item.TileStyle.CornerDiameter = 12;
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item.TileStyle.CornerType = eCornerType.Rounded;
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item.TitleTextAlignment = ContentAlignment.TopCenter;
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//将宽度进行补偿
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int _width = this.ItemWidth + (this.Columns > 0 ? (deltaX / this.Columns) : 0);
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int _height = this.ItemHeight + deltaY;
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//显示大小
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item.TileSize = new Size(_width, _height);
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//显示编码后，调整呈现位置
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item.TileStyle.TextAlignment = DevComponents.DotNetBar.eStyleTextAlignment.Center;
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item.TileStyle.TextLineAlignment = DevComponents.DotNetBar.eStyleTextAlignment.Near;
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item.TitleTextAlignment = System.Drawing.ContentAlignment.BottomCenter;
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//品名
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item.TileStyle.TextColor = ColorTranslator.FromHtml("#444444");
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//显示已售罄
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item.TitleTextColor = ColorTranslator.FromHtml("#444444");
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//是否售罄，0-售罄
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decimal stock = 0.0M;
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decimal.TryParse(string.IsNullOrEmpty(entity.stock) ? "0" : entity.stock, out stock);
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//绑定商品Tag属性
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item.Tag = ObjectUtils.Copy(entity);
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switch (entity.productName)
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{
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case Constant.PREV_PAGER:
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{
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item.TileStyle.BackgroundImage = _defaultImage;
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item.Image = global::POSV.Properties.Resources.上一页_2x;
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item.ImageTextAlignment = ContentAlignment.MiddleCenter;
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item.Text = string.Empty;
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}
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break;
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case Constant.NEXT_PAGER:
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{
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item.TileStyle.BackgroundImage = _defaultImage;
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item.Image = global::POSV.Properties.Resources.下一页_2x;
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item.ImageTextAlignment = ContentAlignment.MiddleCenter;
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item.Text = string.Empty;
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}
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break;
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default:
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{
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//显示编码后，调整呈现位置
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if(stock <= 0)
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{
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item.TitleText = "已售罄";
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}
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//绑定商品名称+规格名称
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string productName = entity.productName;
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string specName = "";
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if (!string.IsNullOrEmpty(entity.specName))
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{
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specName = "\r\n[" + entity.specName + "]";
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}
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item.Text = string.Format("{0}{1}", productName, specName);
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if (this.SelectedProducts.Exists(x=>x.specId.Equals(entity.specId)))
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{
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//选中情况下的背景颜色
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item.TileStyle.BackColor = ColorTranslator.FromHtml("#00C7BA");
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item.TileStyle.BackColor2 = ColorTranslator.FromHtml("#00C7BA");
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item.TileStyle.BorderColor = ColorTranslator.FromHtml("#00C7BA");
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item.TileStyle.BorderColor2 = ColorTranslator.FromHtml("#00C7BA");
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//选中后菜品名称的颜色
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item.TileStyle.TextColor = ColorTranslator.FromHtml("#FFFFFF");
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item.TitleTextColor = ColorTranslator.FromHtml("#FFFFFF");
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}
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else
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{
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if (stock <= 0)
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{
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//正常情况下的背景颜色
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item.TileStyle.BackColor = Color.DimGray;
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item.TileStyle.BackColor2 = Color.DimGray;
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item.TileStyle.BorderColor = Color.DimGray;
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item.TileStyle.BorderColor2 = Color.DimGray;
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item.TileStyle.TextColor = Color.White;
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item.TitleTextColor = Color.White;
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}
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else
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{
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//正常情况下的背景颜色
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item.TileStyle.BackColor = ColorTranslator.FromHtml("#E7EAF1");
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item.TileStyle.BackColor2 = ColorTranslator.FromHtml("#E7EAF1");
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item.TileStyle.BorderColor = ColorTranslator.FromHtml("#E7EAF1");
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item.TileStyle.BorderColor2 = ColorTranslator.FromHtml("#E7EAF1");
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item.TileStyle.TextColor = ColorTranslator.FromHtml("#444444");
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item.TitleTextColor = ColorTranslator.FromHtml("#444444");
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}
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}
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}
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break;
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}
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item.MouseDown -= OnProductMouseDown;
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item.MouseDown += OnProductMouseDown;
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mainContainer.SubItems.Add(item);
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}
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this.itemPanel.Items.Insert(0, mainContainer);
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this.itemPanel.Invalidate();
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}
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catch (Exception ex)
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{
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LOGGER.Error(ex, "构建商品控件内容异常");
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}
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}
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private void OnProductMouseDown(object sender, MouseEventArgs e)
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{
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if (e.Button == MouseButtons.Left)
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{
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MetroTileItem item = (MetroTileItem)sender;
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var spec = item.Tag as ListProductSpec;
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switch (spec.productName)
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{
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case Constant.PREV_PAGER:
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{
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this.PageNumber = spec.Pager;
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this.BindDataSource(this._dataSource, this.SelectedCategorys);
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}
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break;
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case Constant.NEXT_PAGER:
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{
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this.PageNumber = spec.Pager;
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this.BindDataSource(this._dataSource, this.SelectedCategorys);
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}
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break;
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default:
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{
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//已经被选中，再次点击取消选中
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if (this.SelectedProducts.Exists(x => x.specId.Equals(spec.specId)))
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{
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//是否售罄，0-售罄
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decimal stock = 0.0M;
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decimal.TryParse(string.IsNullOrEmpty(spec.stock) ? "0" : spec.stock, out stock);
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if (stock <= 0)
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{
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//正常情况下的背景颜色
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item.TileStyle.BackColor = Color.DimGray;
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item.TileStyle.BackColor2 = Color.DimGray;
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item.TileStyle.BorderColor = Color.DimGray;
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item.TileStyle.BorderColor2 = Color.DimGray;
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item.TileStyle.TextColor = Color.White;
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item.TitleTextColor = Color.White;
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}
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else
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{
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//正常情况下的背景颜色
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item.TileStyle.BackColor = ColorTranslator.FromHtml("#E7EAF1");
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item.TileStyle.BackColor2 = ColorTranslator.FromHtml("#E7EAF1");
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item.TileStyle.BorderColor = ColorTranslator.FromHtml("#E7EAF1");
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item.TileStyle.BorderColor2 = ColorTranslator.FromHtml("#E7EAF1");
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item.TileStyle.TextColor = ColorTranslator.FromHtml("#444444");
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item.TitleTextColor = ColorTranslator.FromHtml("#444444");
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}
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this.SelectedProducts.RemoveAll(x=>x.specId.Equals(spec.specId));
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}
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else
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{
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//选中情况下的背景颜色
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item.TileStyle.BackColor = ColorTranslator.FromHtml("#00C7BA");
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item.TileStyle.BackColor2 = ColorTranslator.FromHtml("#00C7BA");
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item.TileStyle.BorderColor = ColorTranslator.FromHtml("#00C7BA");
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item.TileStyle.BorderColor2 = ColorTranslator.FromHtml("#00C7BA");
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//选中后菜品名称的颜色
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item.TileStyle.TextColor = ColorTranslator.FromHtml("#FFFFFF");
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item.TitleTextColor = ColorTranslator.FromHtml("#FFFFFF");
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this.SelectedProducts.Add(spec);
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}
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}
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break;
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}
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}
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}
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public event WeixinProductXEventHandler ProductXClick;
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protected virtual void OnProductXClick(WeixinProductXEventArgs e)
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{
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ProductXClick?.Invoke(this, e);
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}
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/// <summary>
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/// 分页List数据
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/// </summary>
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/// <param name="data"></param>
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/// <returns></returns>
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public List<T> ListPager<T>(List<T> data)
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{
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var result = new List<T>();
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result.AddRange(data.Skip((this.PageNumber - 1) * this.PageSize).Take(this.PageSize));
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return result;
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}
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private MetroTileItem _selectedItem = null;
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public MetroTileItem SelectedItem
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{
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get { return this._selectedItem; }
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private set { this._selectedItem = value; }
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}
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/// <summary>
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/// 每页数量
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/// </summary>
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public int PageSize { get; private set; }
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/// <summary>
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/// 总页数
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/// </summary>
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public int PageCount => this.PageSize <= 0 ? 0 : ((TotalCount + this.PageSize - 1) / this.PageSize);
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/// <summary>
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/// 当前页码
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/// </summary>
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public int PageNumber { get; set; }
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/// <summary>
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/// 总数量
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/// </summary>
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public int TotalCount { get; private set; }
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private int _columns = 1;
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/// <summary>
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/// 显示的列数
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/// </summary>
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public int Columns
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{
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get
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{
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return _columns;
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}
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set
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{
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_columns = (value < 0 ? 1 : value);
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}
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}
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private int _rows = 1;
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/// <summary>
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/// 显示行数
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/// </summary>
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public int Rows
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{
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get
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{
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return _rows;
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}
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set
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{
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_rows = (value < 0 ? 1 : value);
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}
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}
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public int ItemHeight { get; set; } = PRODUCT_DEFAULT_HEIGHT;
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public int ItemWidth { get; set; } = PRODUCT_DEFAULT_WIDTH;
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/// <summary>
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/// 控件间距
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/// </summary>
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public int ItemSpace { get; set; } = 2;
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}
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public delegate void WeixinProductXEventHandler(object sender, WeixinProductXEventArgs e);
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public class WeixinProductXEventArgs : EventArgs
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{
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public ListProductSpec Product;
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public WeixinProductXEventArgs(ListProductSpec data)
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{
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this.Product = data;
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}
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}
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public class WeixinProductXMerge
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{
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private static NLog.Logger logger = NLog.LogManager.GetCurrentClassLogger();
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public static List<ListProductSpec> Merge(int rows, int cols, List<ListProductSpec> dataSource, bool touchEnabled)
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{
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Stopwatch sw = Stopwatch.StartNew();
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//启用触摸屏，不分页
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if (touchEnabled)
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{
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return dataSource;
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}
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//移除可能存在的分页标识
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dataSource.RemoveAll(x => Constant.PREV_PAGER.Equals(x.productName) || Constant.NEXT_PAGER.Equals(x.productName));
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int pageSize = rows * cols;
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int totalCount = dataSource.Count;
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//启用分页
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int pageCount = ((totalCount - 1) + (pageSize - 2) - 1) / (pageSize - 2);
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if (pageCount > 1)
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|
{
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|
int offset = 0;
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|
for (int page = 1; page <= pageCount; page++)
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|
|
{
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|
|
if (page == 1)
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|
|
{
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|
|
offset = page * pageSize - 1;
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|
|
|
|
|
var entity = new ListProductSpec();
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|
|
entity.id = IdWorkerUtils.Instance.NextId();
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|
entity.productName = Constant.NEXT_PAGER;
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|
entity.Pager = (page + 1);
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|
|
|
|
dataSource.Insert(offset, entity);
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|
}
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|
else if (page < pageCount)
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|
|
{
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|
|
offset = page * pageSize - 2;
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|
|
|
|
|
var entity = new ListProductSpec();
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|
|
entity.id = IdWorkerUtils.Instance.NextId();
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|
|
entity.productName = Constant.PREV_PAGER;
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|
|
entity.Pager = (page - 1);
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|
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|
|
dataSource.Insert(offset, entity);
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|
|
|
|
|
offset++;
|
|
|
|
|
|
entity = new ListProductSpec();
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|
|
entity.id = IdWorkerUtils.Instance.NextId();
|
|
|
entity.productName = Constant.NEXT_PAGER;
|
|
|
entity.Pager = (page + 1);
|
|
|
|
|
|
dataSource.Insert(offset, entity);
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
var entity = new ListProductSpec();
|
|
|
entity.id = IdWorkerUtils.Instance.NextId();
|
|
|
entity.productName = Constant.PREV_PAGER;
|
|
|
entity.Pager = (page - 1);
|
|
|
|
|
|
dataSource.Add(entity);
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
|
|
|
logger.Info("小程序商品控件插入分页控件，耗时<{0}>", sw.ElapsedMilliseconds);
|
|
|
return dataSource;
|
|
|
}
|
|
|
}
|
|
|
}
|