HKCard/HKCardManager/UserPages/ReportFormPage.cs

using HKLib.Dto;
using HKLib.Interfaces;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Diagnostics;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace HKCardManager.UserPages
{
    public partial class ReportFormPage : UserControl
    {
        public ReportFormPage()
        {
            InitializeComponent();
            dataGridView1.AutoGenerateColumns = false;
            button2.Enabled = false;
            #region 禁止更改宽高 
            // 禁止用户改变DataGridView的所有列的列宽   
            //dataGridView1.AllowUserToResizeColumns = false;
            //禁止用户改变DataGridView所有行的行高   
            dataGridView1.AllowUserToResizeRows = false;
            // 禁止用户改变列头的高度   
            dataGridView1.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.DisableResizing;
            // 禁止用户改变列头的宽度   
            dataGridView1.RowHeadersWidthSizeMode = DataGridViewRowHeadersWidthSizeMode.DisableResizing;
            #endregion 
        }

        private void ExportDataToExcel(DataGridView TableName, string FileName)
        {
            SaveFileDialog saveFileDialog = new SaveFileDialog();
            saveFileDialog.Title = "导出Excel文件";  //设置文件标题
            saveFileDialog.Filter = "Microsoft Office Excel 工作簿(*.xls)|*.xls"; //设置文件类型
            saveFileDialog.FilterIndex = 1; //设置默认文件类型显示顺序  
            saveFileDialog.AddExtension = true; //是否自动在文件名中添加扩展名
            saveFileDialog.RestoreDirectory = true; //是否记忆上次打开的目录
            saveFileDialog.FileName = FileName; //设置默认文件名
            if (saveFileDialog.ShowDialog() == DialogResult.OK)
            {
                string localFilePath = saveFileDialog.FileName.ToString();
                //数据初始化
                int TotalCount;     //总行数
                int RowRead = 0;    //已读行数
                int Percent = 0;    //百分比
                TotalCount = TableName.Rows.Count;
                Stream myStream = saveFileDialog.OpenFile();
                Encoding.RegisterProvider(CodePagesEncodingProvider.Instance);
                StreamWriter sw = new StreamWriter(myStream, Encoding.GetEncoding("gb2312"));
                string strHeader = "";

                //秒钟
                Stopwatch timer = new Stopwatch();
                timer.Start();

                try
                {
                    //写入标题
                    for (int i = 0; i < TableName.Columns.Count; i++)
                    {
                        if (i > 0)
                        {
                            strHeader += "\t";
                        }
                        strHeader += TableName.Columns[i].HeaderText.ToString();
                    }
                    sw.WriteLine(strHeader);
                    for (int i = 0; i < TableName.Rows.Count; i++)
                    {
                        RowRead++;
                        Percent = (int)(100 * RowRead / TotalCount);
                        Application.DoEvents();
                        string strData = "";
                        for (int j = 0; j < TableName.Columns.Count; j++)
                        {
                            if (j > 0) strData += "\t";
                            if (TableName.Columns[j].Visible)
                                strData += TableName.Rows[i].Cells[j].Value.ToString();
                        }
                        sw.WriteLine(strData);
                    }
                    sw.Close();
                    myStream.Close();
                    timer.Reset();
                    timer.Stop();
                }
                catch (Exception ex)
                {
                    MessageBox.Show(ex.Message, "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
                }
                finally
                {
                    sw.Close();
                    myStream.Close();
                    timer.Stop();
                }
                MessageLogNotify.GetInstance.Show("数据导出成功");
            }
        }
        List<ReportCountDto> reportCountDtos = new List<ReportCountDto>();
        private void button1_Click(object sender, EventArgs e)
        {
            string TagName = this.Tag.ToString();
            int type = 0;
            if (TagName == "月餐段汇总表") type = 2;
            else if (TagName == "记次就餐天消费表") type = 1;
            else if (TagName == "记次就餐消费明细表") type = 3;
            Task.Factory.StartNew(() =>
            {
                this.Invoke(() => { button1.Enabled = false; });
                var res = HKLibHelper.Report(new ReportDto() { StartTime = dateTimePicker1.Value, EndTime = dateTimePicker2.Value }, type);
                if (res != null)
                {
                    if (res.Count > 0)
                    {
                        reportCountDtos = res;
                        this.Invoke(() => { dataGridView1.DataSource = reportCountDtos; button2.Enabled = true; });
                        MessageLogNotify.GetInstance.Show("获取表数据成功");
                    }
                    else if (res.Count <= 0)
                    {
                        MessageLogNotify.GetInstance.ShowWarning("未查询到数据");
                    }
                }
                else
                {
                    MessageLogNotify.GetInstance.ShowError("查询失败，请输入正确的时间段");
                }
                this.Invoke(() => { button1.Enabled = true; });
            });
        }

        private void button2_Click(object sender, EventArgs e)
        {
            this.Invoke(() => { button2.Enabled = false; });
            ExportDataToExcel(dataGridView1, this.Tag.ToString());
            this.Invoke(() => { button2.Enabled = true; });
        }
    }
}