winform导入导出excel（winform导出excel数据）

本文实例讲述了C#使用winform简单导出Excel的方法。分享给大家供大家参考，具体如下：

1	`using` `Excel;`

在项目中引入Excel.dll

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 /// <summary> /// 导出Excel /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void btnExportExcel_Click(object sender, EventArgs e) { DataTable dt = this.dgvWaterTicket.DataSource; if (dt == null) { return; } if (dt.Rows.Count == 0) { return; } Excel.Application xlApp = new Excel.Application(); if (xlApp == null) { MessageBox.Show("请确保您的电脑已经安装Excel", "提示信息", MessageBoxButtons.OK, MessageBoxIcon.Error); return; } xlApp.UserControl = true; Excel.Workbooks workbooks = xlApp.Workbooks; //根据模版产生新的workbook //Workbook workbook = workbooks.Add("D:\\aa.xls"); Excel.Workbook workbook = workbooks.Add(Excel.XlWBATemplate.xlWBATWorksheet); Excel.Worksheet worksheet = (Excel.Worksheet)workbook.Worksheets[1];//取得sheet1 if (worksheet == null) { MessageBox.Show("请确保您的电脑已经安装Excel", "提示信息", MessageBoxButtons.OK, MessageBoxIcon.Error); return; } try { Excel.Range range; long totalCount = dt.Rows.Count; long rowRead = 0; float percent = 0; worksheet.Cells[1, 1] = frm.Text;//导出的标题 worksheet.get_Range(worksheet.Cells[1, 1], worksheet.Cells[1, dt.]).MergeCells = true; //合并单元格---列数 worksheet.get_Range(worksheet.Cells[1, 1], worksheet.Cells[1, 3]).HorizontalAlignment = Excel.XlVAlign.xlVAlignCenter;//居中对齐 worksheet.get_Range(worksheet.Cells[1, 3], worksheet.Cells[1, 3]).ColumnWidth = 15; //列宽 worksheet.get_Range(worksheet.Cells[1, 2], worksheet.Cells[1, 2]).ColumnWidth = 15; //列宽 worksheet.get_Range(worksheet.Cells[1, 1], worksheet.Cells[1, 1]).ColumnWidth = 20; //列宽 //写入字段 for (int i = 0; i < dt.Columns.Count; i++) { worksheet.Cells[2, i + 1] = dt.Columns[i].ColumnName; range = (Excel.Range)worksheet.Cells[2, i + 1]; range.Interior.ColorIndex = 15; range.Font.Bold = true; } //写入数值 for (int r = 0; r < dt.Rows.Count; r++) { for (int i = 0; i < dt.Columns.Count; i++) { worksheet.Cells[r + 3, i + 1] = dt.Rows[r][i]; } rowRead++; percent = ((float)(100 * rowRead)) / totalCount; //System.Threading.Thread.Sleep(500); //如果字的数量过多则自动换行。worksheet.Cells[r+1, 4]为worksheet.Cells[行, 列] worksheet.get_Range(worksheet.Cells[r + 3, 4], worksheet.Cells[r + 1, 4]).Columns.WrapText = true; //自动换行 worksheet.get_Range(worksheet.Cells[r + 3, 4], worksheet.Cells[r + 3, 4]).Rows.AutoFit(); //自动加行高 //this.Text = "导出数据[" + percent.ToString("0.00") + "%]..."; } range = worksheet.get_Range(worksheet.Cells[2, 1], worksheet.Cells[dt.Rows.Count + 2, dt.Columns.Count]); range.BorderAround(Excel.XlLineStyle.xlContinuous, Excel.XlBorderWeight.xlThin, Excel.XlColorIndex.xlColorIndexAutomatic, null); range.Borders[Excel.XlBordersIndex.xlInsideHorizontal].ColorIndex = Excel.XlColorIndex.xlColorIndexAutomatic; range.Borders[Excel.XlBordersIndex.xlInsideHorizontal].LineStyle = Excel.XlLineStyle.xlContinuous; range.Borders[Excel.XlBordersIndex.xlInsideHorizontal].Weight = Excel.XlBorderWeight.xlThin; if (dt.Columns.Count > 1) { range.Borders[Excel.XlBordersIndex.xlInsideVertical].ColorIndex = Excel.XlColorIndex.xlColorIndexAutomatic; range.Borders[Excel.XlBordersIndex.xlInsideVertical].LineStyle = Excel.XlLineStyle.xlContinuous; range.Borders[Excel.XlBordersIndex.xlInsideVertical].Weight = Excel.XlBorderWeight.xlThin; } xlApp.Visible = true; } catch { MessageBox.Show("到出Excel失败！", "提示信息", MessageBoxButtons.OK, MessageBoxIcon.Error); } finally { System.Runtime.InteropServices.Marshal.ReleaseComObject(worksheet); System.Runtime.InteropServices.Marshal.ReleaseComObject(workbook); System.Runtime.InteropServices.Marshal.ReleaseComObject(workbooks); System.Runtime.InteropServices.Marshal.ReleaseComObject(xlApp); //KillProcess("Excel"); GC.Collect();//强行销毁 } }