.Net常用技巧_VS2005[C#] 操作 Excel 全攻略
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时间：2015年06月09日
using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Text; using System.Windows.Forms; using Microsoft.Office.Interop.Excel; using System.Data.SqlClient; using System.Data.OleDb; using System.Reflection; namespace ExcelPrj { /// <summary> /// Excel 系统中的主文件Excel.exe 本身就是 COM 组件,通过在.NET 项目中引用Exel.exe 文件可以实现对Excel 的功能控制 /// 与COM 组件相互操作是通过使用"包装类"(Wrapper Class) 和"代理"(Proxy) 的机制实现的.包装类使.NET 程序可以识别COM 组件提供的接口,而代理类则是提供对 COM 接口的访问 /// </summary> public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void button3_Click(object sender, EventArgs e) { ExportTasks(Bind(), dataGridView1); } //如果 Excel 安装在计算机上,侧导出表格内容到 Excel public void ExportTasks(DataSet TasksData, DataGridView TasksGridView) { // 定义要使用的Excel 组件接口 // 定义Application 对象,此对象表示整个Excel 程序 Microsoft.Office.Interop.Excel.Application excelApp = null ; // 定义Workbook对象,此对象代表工作薄 Microsoft.Office.Interop.Excel.Workbook workBook; // 定义Worksheet 对象,此对象表示Execel 中的一张工作表 Microsoft.Office.Interop.Excel.Worksheet ws=null; //定义Range对象,此对象代表单元格区域 Microsoft.Office.Interop.Excel.Range r; int row = 1; int cell = 1; try { //初始化 Application 对象 excelApp excelApp = new Microsoft.Office.Interop.Excel.Application(); //在工作薄的第一个工作表上创建任务列表 workBook = excelApp.Workbooks.Add(XlWBATemplate.xlWBATWorksheet); ws =(Worksheet)workBook.Worksheets[1]; // 命名工作表的名称为 "Task Management" ws.Name = "Task Management"; #region 创建表格的列头 // 遍历数据表中的所有列 foreach (DataGridViewColumn cs in TasksGridView.Columns) { // 假如并不想把主键也显示出来 if (cs.HeaderText != "编号") { ws.Cells[row, cell] = cs.HeaderText; r = (Range)ws.Cells[row, cell]; ws.get_Range(r, r).HorizontalAlignment = Microsoft.Office.Interop.Excel.XlVAlign.xlVAlignCenter; //此处用来设置列的样式 cell++; } } // 创建行,把数据视图记录输出到对应的Excel 单元格 for (int i = 2; i < TasksData.Tables[0].Rows.Count; i++) { for (int j = 1; j < TasksData.Tables[0].Columns.Count; j++) { ws.Cells[i, j] = TasksData.Tables[0].Rows[i][j].ToString(); // r = (Range)ws.Cells[i,j]; Range rg = (Range)ws.get_Range(ws.Cells[i, j], ws.Cells[i, j]); rg.EntireColumn.ColumnWidth = 20; // rg.Columns.AutoFit(); rg.NumberFormatLocal = "@"; } } #endregion } catch (Exception ex) { MessageBox.Show(ex.ToString()); } //显示 Excel excelApp.Visible = true; } private void button5_Click(object sender, EventArgs e) { DataSet ds = Bind(); dataGridView1.DataSource = ds.Tables[0]; } private DataSet Bind() { SqlConnection conn = new SqlConnection("Server=.;Database=testManage;Integrated Security=SSPI"); SqlDataAdapter da = new SqlDataAdapter("select FNumber,FExamNum,FName,FSex,FJobAdd,FCardID,FBirDate from stuInfo", conn); DataSet ds = new DataSet(); da.Fill(ds); return ds; } private void button2_Click(object sender, EventArgs e) { SaveFileDialog sfd = new SaveFileDialog(); sfd.Title = "请选择将导出的EXCEL文件存放路径"; sfd.FileName = System.DateTime.Now.ToShortDateString() + "-学生信息"; sfd.Filter = "Excel文档(*.xls)|*.xls"; sfd.ShowDialog(); if (sfd.FileName != "") { Microsoft.Office.Interop.Excel.Application excelApp = new Microsoft.Office.Interop.Excel.Application(); if (excelApp == null) { MessageBox.Show("无法创建Excel对象，可能您的机器未安装Excel"); } else { Microsoft.Office.Interop.Excel.Workbooks workbooks = excelApp.Workbooks; Microsoft.Office.Interop.Excel.Workbook workbook = workbooks.Add(XlWBATemplate.xlWBATWorksheet); Microsoft.Office.Interop.Excel.Worksheet worksheet =(Worksheet) workbook.Worksheets[1]; DataSet ds=Bind(); for (int i = 1; i < ds.Tables[0].Rows.Count; i++) { for (int j = 1; j < ds.Tables[0].Columns.Count;j++ ) { if (i == 1) { worksheet.Cells[i, j] = dataGridView1.Columns[j].HeaderText; } worksheet.Cells[i+1, j] = ds.Tables[0].Rows[i][j].ToString(); } } //保存方式一：保存WorkBook //workbook.SaveAs(@"F:\CData.xls", // Missing.Value,Missing.Value,Missing.Value,Missing.Value,Missing.Value, // Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlNoChange,Missing.Value,Missing.Value,Missing.Value, // Missing.Value,Missing.Value); //保存方式二：保存WorkSheet // worksheet.SaveAs(@"F:\CData2.xls", // Missing.Value, Missing.Value, Missing.Value, Missing.Value, // Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value); ////保存方式三 //workbook.Saved = true; //workbook.SaveCopyAs(sfd.FileName); System.Runtime.InteropServices.Marshal.ReleaseComObject(worksheet); worksheet = null; System.Runtime.InteropServices.Marshal.ReleaseComObject(workbook); workbook = null; workbooks.Close(); System.Runtime.InteropServices.Marshal.ReleaseComObject(workbooks); workbooks = null; excelApp.Quit(); System.Runtime.InteropServices.Marshal.ReleaseComObject(excelApp); excelApp = null; MessageBox.Show("导出Excel完成!"); } } } private void button4_Click(object sender, EventArgs e) { string strExcelFileName = @"F:\\2007-07-16-学生信息.xls"; string strSheetName = "sheet1"; #region Aspnet 操作Excel 正确 ////源的定义 //string strConn = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source = " + strExcelFileName + ";Extended Properties =‘Excel 8.0;HDR=NO;IMEX=1‘"; ////Sql语句 //string strExcel = "select * from [" + strSheetName + "$]"; ////定义存放的数据表 //DataSet ds = new DataSet(); ////连接数据源 //OleDbConnection conn = new OleDbConnection(strConn); //conn.Open(); ////适配到数据源 //OleDbDataAdapter adapter = new OleDbDataAdapter(strExcel, conn); //adapter.Fill(ds,"res"); //conn.Close(); //// 一般的情况下. Excel 表格的第一行是列名 //dataGridView2.DataSource = ds.Tables["res"]; #endregion #region COM 组件读取复杂Excel Microsoft.Office.Interop.Excel.Application excelApp = null; Microsoft.Office.Interop.Excel.Workbook workBook; Microsoft.Office.Interop.Excel.Worksheet ws = null; try { excelApp = new Microsoft.Office.Interop.Excel.Application(); workBook = excelApp.Workbooks.Open(@"F:\\Book1.xls", Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value); ws = (Worksheet)workBook.Worksheets[1]; //Excel 默认为 256 列.. MessageBox.Show(ws.Cells.Columns.Count.ToString()); excelApp.Quit(); } catch (Exception ex) { throw ex; } #endregion } } }
VS2005[C#] 操作 Excel 全攻略
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