using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace LYFZ.Software.MainBusiness.StatisticalInquiry
{
    public partial class FrmProductsUseStatistics : LYFZ.Software.UI.StatisticalInquiry.FrmProductsUseStatistics
    {

        private string _strQuery = "";
        private string _strWhere = "";

        public FrmProductsUseStatistics()
        {
            this.Load += FrmProductsUseStatistics_Load;
            this.Shown += FrmProductsUseStatistics_Shown;
            // 查询按钮;
            this.btn_query.Click += Btn_query_Click;
            // 复选框;
            this.cb_has_pickup.CheckedChanged += Cb_has_pickup_CheckedChanged;
            // 时间picker;
            this.dtp_start.ValueChanged += Dtp_ValueChanged;
            this.dtp_end.ValueChanged += Dtp_ValueChanged;
            // 导出xls;
            this.btn_export_xls.Click += Btn_export_xls_Click;
        }

        private void Btn_export_xls_Click(object sender, EventArgs e)
        {
            if (this.dgv.Rows.Count == 0)
                MessageBox.Show("没有数据可导出");

            this.dgv.ExportDataTable();
        }

        public void InitColumns(string strColumns /*逗号分隔*/, string strHideFields = ""/*逗号分隔*/, bool IsSort = false)
        {
            DataGridViewTextBoxColumn column = null;
            if (!string.IsNullOrEmpty(strColumns))
            {
                // 有必须的话, 清空之前的列头信息;
                this.dgv.Rows.Clear();
                this.dgv.Columns.Clear();

                List<string> listColumns = strColumns.Split(',').ToList();
                List<string> listHideFields = strHideFields.Split(',').ToList();

                for (int i = 0; i < listColumns.Count; i++)
                {
                    column = new DataGridViewTextBoxColumn();
                    column.ReadOnly = true;
                    column.Name = listColumns[i].Trim();
                    column.HeaderText = listColumns[i].Trim();

                    // 是否有隐藏列;
                    if (listHideFields.Contains(listColumns[i].Trim()))
                        column.Visible = false;

                    // 是否排序;
                    if (IsSort)
                        column.SortMode = DataGridViewColumnSortMode.Automatic;

                    this.dgv.Columns.Add(column);
                }

                this.dgv.ColumnHeadersHeight = 25;
                this.dgv.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.DisableResizing;
            }
        }

        /// <summary>
        /// 填充数据;
        /// </summary>
        private void PaddingData()
        {
            // 清空以前的数据;
            this.dgv.Rows.Clear();
            // 查询数据;
            System.Data.DataTable dt = LYFZ.DAL.DAL_ErpOrderProductList.GetProductsUsage(this.cb_has_pickup.Checked, this.dtp_start.Value, this.dtp_end.Value);
            if (dt != null )
            {
                this.lb_count.Text = "当前商品数量: " + dt.Rows.Count;
                foreach (System.Data.DataRow dr in dt.Rows )
                {
                    int index = this.dgv.Rows.Add();
                    this.dgv.Rows[index].Cells[0].Value = dr["Prod_DividedShop"].ToString();
                    this.dgv.Rows[index].Cells[1].Value = dr["Prod_Number"].ToString();
                    this.dgv.Rows[index].Cells[2].Value = dr["Prod_Name"].ToString();
                    this.dgv.Rows[index].Cells[3].Value = dr["Prod_Unit"].ToString();
                    this.dgv.Rows[index].Cells[4].Value = dr["Prod_ClassName"].ToString();
                    this.dgv.Rows[index].Cells[5].Value = dr["Prod_CostPrice"].ToString();
                    this.dgv.Rows[index].Cells[6].Value = dr["Prod_SalesPrice"].ToString();
                    this.dgv.Rows[index].Cells[7].Value = dr["Usage"].ToString();
                }
            }
        }

        private void Dtp_ValueChanged(object sender, EventArgs e)
        {
            if (this.dtp_start.Value > this.dtp_end.Value)
                MessageBoxCustom.Show("开始时间不能大于结束时间");
            else
            {
                PaddingData();
            }
        }

        private void Cb_has_pickup_CheckedChanged(object sender, EventArgs e)
        {
            PaddingData();
        }

        private void Btn_query_Click(object sender, EventArgs e)
        {
            PaddingData();
        }

        // 窗口显示事件;
        private void FrmProductsUseStatistics_Shown(object sender, EventArgs e)
        {
            PaddingData();
        }

        // 窗口加载事件;
        private void FrmProductsUseStatistics_Load(object sender, EventArgs e)
        {
            // 初始化datagridview字段;
            InitColumns("分店ID, 商品编号, 商品名称, 商品单位, 商品类名, 商品成本, 商品售价, 使用数量", "分店ID, 商品编号");
            // 设置默认时间段, 一个月前;
            this.dtp_start.Value = DateTime.Now.AddMonths(-1);
        }
    }
}