17168ERP/web/admin/project/index.aspx.cs

using System;
using System.Collections;
using System.Collections.Generic;
using System.Data;
using System.Data.OleDb;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Configuration;
using System.IO;
using System.Linq;
using DocumentFormat.OpenXml.Packaging;
using DocumentFormat.OpenXml;
using DocumentFormat.OpenXml.Spreadsheet;
using static TreeView;

public partial class admin_project_index : MyWeb.config
{
    private Model.ezEntities _db = new Model.ezEntities();

    protected void Page_Load(object sender, EventArgs e)
    {

        if (!IsPostBack)
        {
            BuildKind();

        }

    }

    #region 分類



    public void BuildKind()
    {
        s_kind.Items.Clear();
        s_kind.Items.Add(new ListItem("請選擇", ""));

        //buildMultiKind(s_kind, "project_kind", 0, "", 1, Model.project.KindLevelMax);
        var qry1 = new TreeView().get_data2(_db.project_kind.Select(o => new TreeItem()
        {
            kind = o.kind,
            num = o.num,
            root = o.root,
            range = o.range,
        }).OrderBy(x => x.root).ThenBy(x => x.kind).ToList(), 0, 0);
        if (qry1.Count() > 0)
            foreach (var qq in qry1)
                s_kind.Items.Add(new ListItem(new TreeView().RptDash(qq.Level) + qq.kind, qq.num.ToString()));


        //品項
        s_actItem_num.Items.Clear();
        s_actItem_num.Items.Add(new ListItem("請選擇", ""));
        var qry = _db.actItems.AsEnumerable();
        qry = qry.Where(o => (int?)o.category==(int)Model.activity.category.Patronize);//贊助項目
        qry = qry.OrderByDescending(o => o.num).ToList();
        if(qry.Count() > 0)  
            foreach(var qq in qry)         
                s_actItem_num.Items.Add(new ListItem(qq.subject, qq.num.ToString()));
          
     

    }


    #endregion



    #region 匯出Excel

    protected void excel_Click(object sender, EventArgs e)
    {
        var memoryStream = new MemoryStream();
        using (var doc = SpreadsheetDocument.Create(memoryStream, SpreadsheetDocumentType.Workbook))
        {
            var wb = doc.AddWorkbookPart();
            wb.Workbook = new Workbook();
            var sheets = wb.Workbook.AppendChild(new Sheets());

            //建立第一個頁籤
            var ws = wb.AddNewPart<WorksheetPart>();
            ws.Worksheet = new Worksheet();
            sheets.Append(new Sheet()
            {
                Id = wb.GetIdOfPart(ws),
                SheetId = 1,
                Name = "專案管理​"
            });

            //設定欄寬
            var cu = new Columns();
            cu.Append(
                new Column { Min = 1, Max = 2, Width = 15, CustomWidth = true },
                new Column { Min = 3, Max = 3, Width = 25, CustomWidth = true }
            );
            ws.Worksheet.Append(cu);

            //建立資料頁
            var sd = new SheetData();
            ws.Worksheet.AppendChild(sd);

            //第一列資料
            var tr = new Row();
            tr.Append(
              new Cell() { CellValue = new CellValue("名稱"), DataType = CellValues.String },
                new Cell() { CellValue = new CellValue("類別"), DataType = CellValues.String },
                new Cell() { CellValue = new CellValue("品項"), DataType = CellValues.String }
            );
            sd.AppendChild(tr);

            //查詢要匯出的資料
            var qry = _db.projects.AsEnumerable();

            if (!string.IsNullOrEmpty(subject.Value))
                qry = qry.Where(o => o.subject.Contains(subject.Value.Trim()));
            if (!string.IsNullOrEmpty(s_kind.SelectedValue))
                qry = qry.Where(o => o.kind == Convert.ToInt32( s_kind.SelectedValue));
            if (!string.IsNullOrEmpty(s_actItem_num.SelectedValue))
                qry = qry.Where(o => o.actItem_num == Convert.ToInt32(s_actItem_num.SelectedValue));

            qry = qry.OrderByDescending(o => o.num);
            var list = qry.ToList();
            if (list.Count > 0)
            {
               
                foreach (var item in list)
                {
                    //新增資料列
                    tr = new Row();
                    tr.Append(
                        new Cell() { CellValue = new CellValue(item.subject), DataType = CellValues.String },
                        new Cell() { CellValue = new CellValue(item.kind.HasValue? item.project_kind.kind:""), DataType = CellValues.String },
                        new Cell() { CellValue = new CellValue(item.actItem_num.HasValue? item.actItem.subject:""), DataType = CellValues.String }
                        );
                    sd.AppendChild(tr);
                }

            }
            Model.admin_log admin_log = new Model.admin_log();
            admin_log.writeLog(admin.info.u_id, (int)Model.admin_log.Systems.Project, (int)Model.admin_log.Status.Excel, admin_log.LogViewBtn(list.Select(x => x.subject).ToList()));

        }


        HttpContext.Current.Response.Clear();
        HttpContext.Current.Response.AddHeader("content-disposition", "attachment;  filename=專案管理.xlsx");
        HttpContext.Current.Response.ContentType = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
        HttpContext.Current.Response.BinaryWrite(memoryStream.ToArray());
        HttpContext.Current.Response.End();
    }


    #endregion


}