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using System;
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using System.IO;
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using System.Data;
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using System.Web;
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using System.Text;
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using System.Globalization;
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using System.Collections;
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using System.Windows.Forms;
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using Microsoft.CSharp;
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namespace Com.Elong.BusinessService.Domain.CommissionAccount
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{
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public class ExcelHelper
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{
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public static void ExportToExcel(string filePath, DataSet ds)
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{
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object oMissing = System.Reflection.Missing.Value;
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Excel.ApplicationClass xlApp = new Excel.ApplicationClass();
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try
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{
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// 打开Excel文件。以下为Office 2000.
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Excel.Workbook xlWorkbook = xlApp.Workbooks.Open(filePath, oMissing, oMissing, oMissing, oMissing, oMissing, oMissing, oMissing, oMissing, oMissing, oMissing, oMissing, oMissing, oMissing, oMissing);
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Excel.Worksheet xlWorksheet;
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// 循环所有DataTable
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for( int i=0; i<ds.Tables.Count; i++ )
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{
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// 添加入一个新的Sheet页。
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xlWorksheet = (Excel.Worksheet)xlWorkbook.Worksheets.Add(oMissing,oMissing,1,oMissing);
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// 以TableName作为新加的Sheet页名。
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xlWorksheet.Name = ds.Tables[i].TableName;
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// 取出这个DataTable中的所有值,暂存于stringBuffer中。
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string stringBuffer = "";
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for( int j=0; j<ds.Tables[i].Rows.Count; j++ )
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{
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for( int k=0; k<ds.Tables[i].Columns.Count; k++ )
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{
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stringBuffer += ds.Tables[i].Rows[j][k].ToString();
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if( k < ds.Tables[i].Columns.Count - 1 )
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stringBuffer += "\t";
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}
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stringBuffer += "\n";
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}
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// 利用系统剪切板
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System.Windows.Forms.Clipboard.SetDataObject("");
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// 将stringBuffer放入剪切板。
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System.Windows.Forms.Clipboard.SetDataObject(stringBuffer);
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// 选中这个sheet页中的第一个单元格
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((Excel.Range)xlWorksheet.Cells[1,1]).Select();
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// 粘贴!
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xlWorksheet.Paste(oMissing,oMissing);
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// 清空系统剪切板。
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System.Windows.Forms.Clipboard.SetDataObject("");
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}
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// 保存并关闭这个工作簿。
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xlWorkbook.Close( Excel.XlSaveAction.xlSaveChanges, oMissing, oMissing );
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System.Runtime.InteropServices.Marshal.ReleaseComObject(xlWorkbook);
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xlWorkbook = null;
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}
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catch(Exception ex)
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{
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MessageBox.Show(ex.Message);
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}
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finally
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{
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// 释放![](https://www.cnblogs.com/Images/dot.gif)
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xlApp.Quit();
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System.Runtime.InteropServices.Marshal.ReleaseComObject(xlApp);
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xlApp = null;
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GC.Collect();
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}
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}
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}
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}
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