2种方法参考:
第一种:用流保存成xls文件. 这种方法比较好, 可以参考
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2using System.IO;
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4
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6
/**//// <summary>
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8 /// 另存新档按钮
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/// </summary>
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12 private void SaveAs() //另存新档按钮 导出成Excel
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14 
{
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16 SaveFileDialog saveFileDialog = new SaveFileDialog();
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18 saveFileDialog.Filter = "Execl files (*.xls)|*.xls";
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20 saveFileDialog.FilterIndex = 0;
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22 saveFileDialog.RestoreDirectory = true;
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24 saveFileDialog.CreatePrompt = true;
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26 saveFileDialog.Title = "Export Excel File To";
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29 saveFileDialog.ShowDialog();
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32 Stream myStream;
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34 myStream = saveFileDialog.OpenFile();
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36 //StreamWriter sw = new StreamWriter(myStream, System.Text.Encoding.GetEncoding("gb2312"));
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38 StreamWriter sw = new StreamWriter(myStream, System.Text.Encoding.GetEncoding(-0));
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40 string str = "";
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42 try
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44
{
45
46 //写标题
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48 for (int i = 0; i < dgvAgeWeekSex.ColumnCount; i++)
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50 {
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52 if (i > 0)
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54 {
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56 str += "\t";
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58
}
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60 str += dgvAgeWeekSex.Columns[i].HeaderText;
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62 }
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65 sw.WriteLine(str);
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67
68
69 //写内容
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71 for (int j = 0; j < dgvAgeWeekSex.Rows.Count; j++)
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73 {
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75 string tempStr = "";
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77 for (int k = 0; k < dgvAgeWeekSex.Columns.Count; k++)
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79 {
80
81 if (k > 0)
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83 {
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85 tempStr += "\t";
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87 }
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89 tempStr += dgvAgeWeekSex.Rows[j].Cells[k].Value.ToString();
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91 }
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93
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95 sw.WriteLine(tempStr);
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97 }
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99 sw.Close();
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101 myStream.Close();
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103 }
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105 catch (Exception e)
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107 {
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109 MessageBox.Show(e.ToString());
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111 }
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113 finally
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115 {
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117 sw.Close();
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119 myStream.Close();
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121 }
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123 }
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125
第二种方法:引用Excel组件,先定义Excel对象(实例),再根据DataGridView中数据,一格一格去填充Excel对象(实例),单元格,最后保存Excel对象(实例)[调用对象Save()方法].
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2 /**//// <summary>
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4 /// 另存新档按钮 导出成Excel
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6 /// </summary>
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8 private void SaveToExcel() //另存新档按钮 导出成Excel
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10 {
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12 SaveFileDialog saveFileDialog = new SaveFileDialog();
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14 saveFileDialog.Filter = "Execl files (*.xls)|*.xls";
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16 saveFileDialog.FilterIndex = 0;
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18 saveFileDialog.RestoreDirectory = true;
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20 saveFileDialog.CreatePrompt = true;
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22 saveFileDialog.Title = "Export Excel File To";
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25 saveFileDialog.ShowDialog();
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27 string strName = saveFileDialog.FileName;
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29
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31 System.Reflection.Missing miss = System.Reflection.Missing.Value;
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34 Excel.Application excel = new Excel.ApplicationClass();
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36 Excel.Workbooks books = (Excel.Workbooks)excel.Workbooks;
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38 Excel.Workbook book = (Excel.Workbook)(books.Add(miss));
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40 Excel.Worksheet sheet = (Excel.Worksheet)book.ActiveSheet;
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42 sheet.Name = "test";
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45 int colIndex=0;
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47 foreach (DataGridViewColumn column in dgvAgeWeekSex.Columns)
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49 {
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51 colIndex++;
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53 excel.Cells[1, colIndex] = column.HeaderText;
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55 }
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57
58 for (int i = 0; i < dgvAgeWeekSex.Rows.Count; i++)
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60 {
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62 for (int j = 0; j < dgvAgeWeekSex.Columns.Count; j++)
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64 {
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66 excel.Cells[i + 2, j + 1] = dgvAgeWeekSex.Rows[i].Cells[j].Value.ToString();
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68 }
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70 }
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72
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74 sheet.SaveAs(strName, miss, miss, miss, miss, miss, Excel.XlSaveAsAccessMode.xlNoChange, miss, miss);
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76
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78 book.Close(false, miss, miss);
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80 books.Close();
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82 excel.Quit();
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84
85 //System.Runtime.InteropServices.Marshal.ReleaseComObject();
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87 System.Runtime.InteropServices.Marshal.ReleaseComObject(sheet);
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89 System.Runtime.InteropServices.Marshal.ReleaseComObject(book);
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91 System.Runtime.InteropServices.Marshal.ReleaseComObject(books);
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93 System.Runtime.InteropServices.Marshal.ReleaseComObject(excel);
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95 GC.Collect();
96
97 }