using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Reflection;
using Microsoft.Office;
//using Excel = Microsoft.Office.Interop.Excel;
using Excel;
/// <summary>
///InOutInfoToExcel 的摘要说明
/// </summary>
public class InOutInfoToExcel
{
public InOutInfoToExcel()
{
//
//TODO: 在此处添加构造函数逻辑
//
}
/// <summary>
/// 导出excel单个sheet（导出的excel文件的名字只能为英文，中文的话名字是乱码 且只能导出一个sheet）
/// </summary>
/// <param name="ds"></param>
/// <param name="FileName"></param>
public void ToExcel(DataSet ds, string FileName)
{
//HttpContext.Current.Response.Charset = "UTF-8";
HttpContext.Current.Response.Charset = "GB2312";
//HttpContext.Current.Response.ContentEncoding = System.Text.Encoding.UTF8;//设置输出流为简体中文
System.Web.HttpContext.Current.Response.ContentEncoding = System.Text.Encoding.GetEncoding("GB2312");
HttpContext.Current.Response.ContentType = "application/ms-excel";//设置输出文件类型为excel文件
HttpContext.Current.Response.AppendHeader("Content-Disposition", "attachment;filename=" + "" + FileName);
//设置数字为文本格式
string strStyle = "<style>td{mso-number-format:\"\\@\";}</style>";
System.IO.StringWriter tw = new System.IO.StringWriter();//定义StringWriter输出对象
HtmlTextWriter hw = new HtmlTextWriter(tw);//定义HtmlTextWriter对象
//ctl.RenderControl(hw);//用RenderControl方法输出excel
//DataGrid dg = new DataGrid();
//dg.DataSource = ds.Tables[0];
//dg.DataBind();
//dg.RenderControl(hw);
hw.WriteLine(strStyle);
GridView gv = new GridView();
gv.DataSource = ds.Tables[0];
gv.DataBind();
gv.RenderControl(hw);
HttpContext.Current.Response.Write(tw.ToString());//输出
HttpContext.Current.Response.Flush();
HttpContext.Current.Response.End();
}
/// <summary>
///导出Excel文件 （多个sheet）
/// </summary>
/// <param name="dv">用于导出的DataSET[数组]</param>
/// <param name="tmpExpDir">导出的文件夹的虚拟路径（在程序里建一个文件夹导出到此文件夹中）/</param>
/// <param name="refFileName">文件名，例如test.xls</param>
/// <param name="sheetName">Sheet的名称，如果导出多个Sheet[数租]</param>
/// <param name="sheetSize">每个Sheet包含的数据行数，此数值不包括标题行。所以，对于65536行数据，请将此值设置为65535</param>
/// <param name="setBorderLine">导出完成后，是否给数据加上边框线</param>
public bool WebExportToExcel_1(DataSet[] dv, string tmpExpDir, string refFileName, string[] sheetName, int sheetSize, bool setBorderLine)
{
int RowsToDivideSheet = sheetSize;//计算Sheet行数
int sheetCount = dv.Length;
GC.Collect();// 回收其他的垃圾
Application excel; _Workbook xBk; _Worksheet xSt = null;
excel = new Excel.ApplicationClass(); xBk = excel.Workbooks.Add(true);
//申明循环中要使用的变量
int dvRowStart = 0;
int dvRowEnd; int rowIndex = 0; int colIndex = 0;
//对全部Sheet进行操作
for (int sheetIndex = 0; sheetIndex < sheetCount; sheetIndex++)
{
rowIndex = 1; colIndex = 1; //设置初始化的行和列
//计算起始行
dvRowStart = 1; //sheetIndex * RowsToDivideSheet;
//计算结束行
dvRowEnd = RowsToDivideSheet; //dvRowStart + RowsToDivideSheet - 1;
if (dvRowEnd > dv[sheetIndex].Tables[0].Rows.Count)
{ dvRowEnd = dv[sheetIndex].Tables[0].Rows.Count + 1; }
//创建一个Sheet
if (null == xSt)
{ xSt = (Excel._Worksheet)xBk.Worksheets.Add(Type.Missing, Type.Missing, 1, Type.Missing); }
else { xSt = (Excel._Worksheet)xBk.Worksheets.Add(Type.Missing, xSt, 1, Type.Missing); }
//设置SheetName
// xSt.Name = null;
xSt.Name = sheetName[sheetIndex].ToString();
//if (sheetCount > 1)
//{ xSt.Name += "1"; }
//取得标题
foreach (DataColumn col in dv[sheetIndex].Tables[0].Columns)
{ //设置标题格式
xSt.get_Range(excel.Cells[rowIndex, colIndex], excel.Cells[rowIndex, colIndex]).HorizontalAlignment = XlVAlign.xlVAlignCenter;
//设置标题居中对齐
xSt.get_Range(excel.Cells[rowIndex, colIndex], excel.Cells[rowIndex, colIndex]).Font.Bold = true;
//填值，并进行下一列
excel.Cells[rowIndex, colIndex++] = col.ColumnName;
}
//取得DATASET表格中数据
//int drvIndex;
//for (drvIndex = dvRowStart; drvIndex <= dvRowEnd-1; drvIndex++)
//{
// //新起一行，当前单元格移至行首
// rowIndex++;
// colIndex = 1;
// for (int i = 1; i <= dv[sheetIndex].Tables[0].Columns.Count; i++)
// {
// string aa = dv[sheetIndex].Tables[0].Rows[0][i-1].ToString();
// excel.Cells[rowIndex, colIndex] = "‘" + aa + "";
// colIndex++;
// }
//}
//以下代码就是经过修正后的。上面注释的代码有问题。
foreach (DataRow dr in dv[sheetIndex].Tables[0].Rows)
{
//新起一行，当前单元格移至行首
rowIndex++;
colIndex = 1;
for (int i = 1; i <= dv[sheetIndex].Tables[0].Columns.Count; i++)
{
string aa = dr[i - 1].ToString();
excel.Cells[rowIndex, colIndex] = "‘" + aa + "";
colIndex++;
}
}
Excel.Range allDataWithTitleRange = xSt.get_Range(excel.Cells[1, 1], excel.Cells[rowIndex, colIndex]);
allDataWithTitleRange.Select();
allDataWithTitleRange.Columns.AutoFit();
if (setBorderLine)
{ allDataWithTitleRange.Borders.LineStyle = 1; }
}//Sheet循环结束
string absFileName = HttpContext.Current.Server.MapPath(System.IO.Path.Combine(tmpExpDir, refFileName));
xBk.SaveCopyAs(absFileName); xBk.Close(false, null, null);
excel.Quit();
System.Runtime.InteropServices.Marshal.ReleaseComObject(xBk);
System.Runtime.InteropServices.Marshal.ReleaseComObject(excel);
System.Runtime.InteropServices.Marshal.ReleaseComObject(xSt);
xBk = null; excel = null; xSt = null; GC.Collect();
return true;
}
}