DataGridView控件中数据导出到Excel代码,CSharp代码库,德仔网

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【CSharp】 DataGridView控件中数据导出到Excel
作者:gao2951713 / 发布于2013/10/23/ 756
超实用，注意引用命名空间，对了，方法一中，关于导出的时候提示object' does not contain a definition for 'get_Range错误的时候，只需要将代码行149：selectRange = ws.get_Range(ws.Cells[rown + 1, ++coln], ws.Cells[rown + 1, coln]);和169行参照Excel.Range r = sh.Range[sh.Cells[1, 1], sh.Cells[2, 2]];格式修改就能正常运行了。

	OS：Windows XP;IDE：VS2010 SP1

	方法一：


	using System;
	using System.Collections.Generic;
	using System.ComponentModel;
	using System.Data;
	using System.Drawing;
	using System.Linq;
	using System.Text;
	using System.Windows.Forms;
	using System.Reflection;
	using Microsoft.Office.Interop.Excel;

	namespace TestEXCLE
	{
	 public partial class Form1 : Form
	 {
	 public Form1()
	 {
	 InitializeComponent();
	 }


	 private void button1_Click(object sender, EventArgs e)
	 {

	 _DataGridView = this.dataGridView1;
	 ExportToExcel("www");

	 }

	
	 private DataGridView _DataGridView;
	 private string _FileName = "";

	 ///// <summary>
	 ///// 构造函数
	 ///// </summary>
	 ///// <param name="ownerForm">拥用者窗体</param>
	 ///// <param name="dataGridView">DataGridView对象</param>
	 public Form1(Form ownerForm, DataGridView dataGridView)
	 {
	
	 _DataGridView = dataGridView;
	 }

	 /// <summary>
	 /// 导出到Excel
	 /// </summary>
	 /// <param name="pfileName">文件名,不需要带扩展名</param>
	 public void ExportToExcel(string pfileName)
	 {
	 _FileName = pfileName == null ? "未命名" : pfileName.Trim();

	 string fileName = ShowSaveFileDialog("Microsoft Excel Document", "Microsoft Excel|*.xls");
	 if (fileName != "")
	 {
	 try
	 {
	 ExportTo(fileName);
	 OpenFile(fileName);
	 }
	 catch (System.Exception err)
	 {
	 MessageBox.Show(err.Message);
	 }
	 }
	 }

	 /// <summary>
	 /// 导出到
	 /// </summary>
	 /// <param name="fileName">文件名</param>
	 private void ExportTo(string fileName)
	 {

	 //
	 //获取指定文件是否存在
	 bool isExist = System.IO.File.Exists(fileName);
	 //
	 //定义一个缺少的object对象
	 object oMis = System.Reflection.Missing.Value;

	 //
	 //定义一个Excel区域对象,用于保存选择的区域
	 Microsoft.Office.Interop.Excel.Range selectRange;
	 //
	 //声明一Excel Application 对象
	 Microsoft.Office.Interop.Excel.ApplicationClass App = null;
	 //
	 //声明一Excel Workbook 对象
	 Microsoft.Office.Interop.Excel.Workbook wb = null;
	 //
	 //声明一Excel Worksheet 对象
	 Microsoft.Office.Interop.Excel.Worksheet ws = null;

	 //
	 //将当前水标状态保存到临时变量中后将光标置为忙状态
	 Cursor currentCursor = Cursor.Current;
	 Cursor.Current = Cursors.WaitCursor;

	 try
	 {
	 App = new Microsoft.Office.Interop.Excel.ApplicationClass();

	 //
	 //判断指定的文件是否存在
	 if (isExist)
	 {
	 //
	 //打开已存在的工作薄 Workbook
	 wb = App.Workbooks.Open(fileName, oMis, oMis, oMis, oMis, oMis, oMis, oMis, oMis, oMis, oMis, oMis, oMis, oMis, oMis);
	 //新建工作表
	 ws = (Microsoft.Office.Interop.Excel.Worksheet)wb.Worksheets.Add(oMis, oMis, 1, oMis);
	 //指定工作表名
	 ws.Name = this.Text + wb.Sheets.Count; //加 wb.Sheets.Count 防止重名
	 }
	 else
	 {
	 //
	 //增加一工作薄 Workbook
	 wb = App.Workbooks.Add(Microsoft.Office.Interop.Excel.XlWBATemplate.xlWBATWorksheet);
	 //新建工作薄后默认有一个工作表,取得第一个工作表
	 ws = (Microsoft.Office.Interop.Excel.Worksheet)wb.Sheets[1];
	 //指定工作表名
	 ws.Name = this.Text;
	 }

	 //
	 //增加一工作表 Worksheet

	 //
	 //声明两个变量记录Excle当前操作的行号与列号
	 int rown = 0;
	 int coln = 0;

	 //
	 //声明一变量用于记录当前DatagridView的总行数
	 int colCount = _DataGridView.Columns.Count;

	 _DataGridView.SuspendLayout();

	 //
	 //将DataGirdView列头写入Excel中
	 foreach (DataGridViewColumn dgvc in _DataGridView.Columns)
	 {
	 selectRange = ws.get_Range(ws.Cells[rown + 1, ++coln], ws.Cells[rown + 1, coln]);
	 selectRange.Columns.ColumnWidth = dgvc.Width / 10;
	 selectRange.Interior.ColorIndex = 16;
	 selectRange.Interior.Pattern = Microsoft.Office.Interop.Excel.Constants.xlSolid;
	 selectRange.Font.ColorIndex = 2;
	 selectRange.HorizontalAlignment = Microsoft.Office.Interop.Excel.Constants.xlCenter;
	 selectRange.VerticalAlignment = Microsoft.Office.Interop.Excel.Constants.xlCenter;
	 selectRange.set_Item(1, 1, dgvc.HeaderText);
	 }

	 //
	 //行号增加一
	 rown++;

	 //
	 //将DataGridView中所有的行数写入Excel中
	 foreach (DataGridViewRow dgvr in _DataGridView.Rows)
	 {
	 for (int i = 0; i < colCount; i++)
	 {
	 selectRange = ws.get_Range(ws.Cells[rown + 1, i + 1], ws.Cells[rown + 1, i + 1]);
	 selectRange.set_Item(1, 1, dgvr.Cells[i].Value);
	 }
	 rown++;
	 }

	 //
	 //写入完成后将有数据的范围内设置其边框与内部线条
	 ws.UsedRange.Borders[Microsoft.Office.Interop.Excel.XlBordersIndex.xlEdgeTop].Weight = 3;
	 ws.UsedRange.Borders[Microsoft.Office.Interop.Excel.XlBordersIndex.xlEdgeBottom].Weight = 3;
	 ws.UsedRange.Borders[Microsoft.Office.Interop.Excel.XlBordersIndex.xlEdgeLeft].Weight = 3;
	 ws.UsedRange.Borders[Microsoft.Office.Interop.Excel.XlBordersIndex.xlEdgeRight].Weight = 3;
	 ws.UsedRange.Borders[Microsoft.Office.Interop.Excel.XlBordersIndex.xlInsideHorizontal].Weight = 2;
	 ws.UsedRange.Borders[Microsoft.Office.Interop.Excel.XlBordersIndex.xlInsideVertical].Weight = 2;

	 //
	 //设置Wookbook为已保存状态
	 wb.Saved = true;


	 if (isExist)
	 {
	 wb.Save();
	 }
	 else
	 {
	 //
	 //将当前工作薄保存为指定的文件名
	 wb.SaveCopyAs(fileName);
	 }
	 }
	 catch (Exception exp)
	 {
	 MessageBox.Show(exp.Message, "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
	 }
	 finally
	 {

	 _DataGridView.ResumeLayout();

	 wb.Close(false, null, null);
	 //
	 //退出Excel程序
	 App.Quit();

	 //
	 //将当前光标更改回原来的状态
	 Cursor.Current = currentCursor;
	 }

	 }
	 /// <summary>
	 /// 打开文件
	 /// </summary>
	 /// <param name="fileName">文件名</param>
	 private void OpenFile(string fileName)
	 {
	 if (MessageBox.Show("你想打开这个文件吗?", "导出到...", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes)
	 {
	 try
	 {
	 System.Diagnostics.Process process = new System.Diagnostics.Process();
	 process.StartInfo.FileName = fileName;
	 process.StartInfo.Verb = "Open";
	 process.StartInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Normal;
	 process.Start();
	 }
	 catch
	 {
	 MessageBox.Show(this, "你的计算机中未安装Excel,不能打开该文档!" , this.ProductName
	 , MessageBoxButtons.OK, MessageBoxIcon.Error);
	 }
	 }
	 }

	 /// <summary>
	 /// 显示保存文件对话框,并返回选择的文件路径
	 /// </summary>
	 /// <param name="title">对话框的标题</param>
	 /// <param name="filter">过滤器</param>
	 /// <returns>选择的文件路径</returns>
	 private string ShowSaveFileDialog(string title, string filter)
	 {
	 SaveFileDialog dlg = new SaveFileDialog();
	 string name = _FileName;
	 int n = name.LastIndexOf(".") + 1;
	 if (n > 0) name = name.Substring(n, name.Length - n);
	 dlg.Title = "导出到" + title;
	 dlg.FileName = name;
	 dlg.Filter = filter;
	 if (dlg.ShowDialog() == DialogResult.OK) return dlg.FileName;
	 return "";
	 }

	 private void Form1_Load(object sender, EventArgs e)
	 {
	 // TODO: 这行代码将数据加载到表&ldquo;testDataSet2.chengji&rdquo;中。您可以根据需要移动或移除它。
	 this.chengjiTableAdapter.Fill(this.testDataSet2.chengji);

	 }
	 }
	}

	方法二：

	#region DataGridView数据显示到Excel
	/// <summary>
	/// 打开Excel并将DataGridView控件中数据导出到Excel
	/// </summary>
	/// <param name="dgv">DataGridView对象 </param>
	/// <param name="isShowExcle">是否显示Excel界面 </param>
	/// <remarks>
	/// add com "Microsoft Excel 11.0 Object Library"
	/// using Excel=Microsoft.Office.Interop.Excel;
	/// </remarks>
	/// <returns> </returns>
	public bool DataGridviewShowToExcel(DataGridView dgv, bool isShowExcle)
	{
	 if (dgv.Rows.Count == 0)
	 return false;
	 //建立Excel对象
	 Excel.Application excel = new Excel.Application();
	 excel.Application.Workbooks.Add(true);
	 excel.Visible = isShowExcle;
	 //生成字段名称
	 for (int i = 0; i < dgv.ColumnCount; i++)
	 {
	 excel.Cells[1, i + 1] = dgv.Columns[i].HeaderText;
	 }
	 //填充数据
	 for (int i = 0; i < dgv.RowCount - 1; i++)
	 {
	 for (int j = 0; j < dgv.ColumnCount; j++)
	 {
	 if (dgv[j, i].ValueType == typeof(string))
	 {
	 excel.Cells[i + 2, j + 1] = "'" + dgv[j, i].Value.ToString();
	 }
	 else
	 {
	 excel.Cells[i + 2, j + 1] = dgv[j, i].Value.ToString();
	 }
	 }
	 }
	 return true;
	}
	#endregion

	方法三：

	#region DateGridView导出到csv格式的Excel
	/// <summary>
	/// 常用方法，列之间加\t，一行一行输出，此文件其实是csv文件，不过默认可以当成Excel打开。
	/// </summary>
	/// <remarks>
	/// using System.IO;
	/// </remarks>
	/// <param name="dgv"></param>
	private void DataGridViewToExcel(DataGridView dgv)
	{
	 SaveFileDialog dlg = new SaveFileDialog();
	 dlg.Filter = "Execl files (*.xls)|*.xls";
	 dlg.FilterIndex = 0;
	 dlg.RestoreDirectory = true;
	 dlg.CreatePrompt = true;
	 dlg.Title = "保存为Excel文件";

	 if (dlg.ShowDialog() == DialogResult.OK)
	 {
	 Stream myStream;
	 myStream = dlg.OpenFile();
	 StreamWriter sw = new StreamWriter(myStream, System.Text.Encoding.GetEncoding(-0));
	 string columnTitle = "";
	 try
	 {
	 //写入列标题
	 for (int i = 0; i < dgv.ColumnCount; i++)
	 {
	 if (i > 0)
	 {
	 columnTitle += "\t";
	 }
	 columnTitle += dgv.Columns[i].HeaderText;
	 }
	 sw.WriteLine(columnTitle);

	 //写入列内容
	 for (int j = 0; j < dgv.Rows.Count; j++)
	 {
	 string columnValue = "";
	 for (int k = 0; k < dgv.Columns.Count; k++)
	 {
	 if (k > 0)
	 {
	 columnValue += "\t";
	 }
	 if (dgv.Rows[j].Cells[k].Value == null)
	 columnValue += "";
	 else
	 columnValue += dgv.Rows[j].Cells[k].Value.ToString().Trim();
	 }
	 sw.WriteLine(columnValue);
	 }
	 sw.Close();
	 myStream.Close();
	 }
	 catch (Exception e)
	 {
	 MessageBox.Show(e.ToString());
	 }
	 finally
	 {
	 sw.Close();
	 myStream.Close();
	 }
	 }
	}
	#endregion

	方法四：

	#region DataGridView导出到Excel，有一定的判断性
	/// <summary>
	///方法，导出DataGridView中的数据到Excel文件
	/// </summary>
	/// <remarks>
	/// add com "Microsoft Excel 11.0 Object Library"
	/// using Excel=Microsoft.Office.Interop.Excel;
	/// using System.Reflection;
	/// </remarks>
	/// <param name= "dgv"> DataGridView </param>
	public static void DataGridViewToExcel(DataGridView dgv)
	{

	 #region 验证可操作性

	 //申明保存对话框
	 SaveFileDialog dlg = new SaveFileDialog();
	 //默然文件后缀
	 dlg.DefaultExt = "xls ";
	 //文件后缀列表
	 dlg.Filter = "EXCEL文件(*.XLS)|*.xls ";
	 //默然路径是系统当前路径
	 dlg.InitialDirectory = Directory.GetCurrentDirectory();
	 //打开保存对话框
	 if (dlg.ShowDialog() == DialogResult.Cancel) return;
	 //返回文件路径
	 string fileNameString = dlg.FileName;
	 //验证strFileName是否为空或值无效
	 if (fileNameString.Trim() == " ")
	 { return; }
	 //定义表格内数据的行数和列数
	 int rowscount = dgv.Rows.Count;
	 int colscount = dgv.Columns.Count;
	 //行数必须大于0
	 if (rowscount <= 0)
	 {
	 MessageBox.Show("没有数据可供保存 ", "提示 ", MessageBoxButtons.OK, MessageBoxIcon.Information);
	 return;
	 }

	 //列数必须大于0
	 if (colscount <= 0)
	 {
	 MessageBox.Show("没有数据可供保存 ", "提示 ", MessageBoxButtons.OK, MessageBoxIcon.Information);
	 return;
	 }

	 //行数不可以大于65536
	 if (rowscount > 65536)
	 {
	 MessageBox.Show("数据记录数太多(最多不能超过65536条)，不能保存 ", "提示 ", MessageBoxButtons.OK, MessageBoxIcon.Information);
	 return;
	 }

	 //列数不可以大于255
	 if (colscount > 255)
	 {
	 MessageBox.Show("数据记录行数太多，不能保存 ", "提示 ", MessageBoxButtons.OK, MessageBoxIcon.Information);
	 return;
	 }

	 //验证以fileNameString命名的文件是否存在，如果存在删除它
	 FileInfo file = new FileInfo(fileNameString);
	 if (file.Exists)
	 {
	 try
	 {
	 file.Delete();
	 }
	 catch (Exception error)
	 {
	 MessageBox.Show(error.Message, "删除失败 ", MessageBoxButtons.OK, MessageBoxIcon.Warning);
	 return;
	 }
	 }
	 #endregion
	 Excel.Application objExcel = null;
	 Excel.Workbook objWorkbook = null;
	 Excel.Worksheet objsheet = null;
	 try
	 {
	 //申明对象
	 objExcel = new Microsoft.Office.Interop.Excel.Application();
	 objWorkbook = objExcel.Workbooks.Add(Missing.Value);
	 objsheet = (Excel.Worksheet)objWorkbook.ActiveSheet;
	 //设置EXCEL不可见
	 objExcel.Visible = false;

	 //向Excel中写入表格的表头
	 int displayColumnsCount = 1;
	 for (int i = 0; i <= dgv.ColumnCount - 1; i++)
	 {
	 if (dgv.Columns[i].Visible == true)
	 {
	 objExcel.Cells[1, displayColumnsCount] = dgv.Columns[i].HeaderText.Trim();
	 displayColumnsCount++;
	 }
	 }
	 //设置进度条
	 //tempProgressBar.Refresh();
	 //tempProgressBar.Visible = true;
	 //tempProgressBar.Minimum=1;
	 //tempProgressBar.Maximum=dgv.RowCount;
	 //tempProgressBar.Step=1;
	 //向Excel中逐行逐列写入表格中的数据
	 for (int row = 0; row <= dgv.RowCount - 1; row++)
	 {
	 //tempProgressBar.PerformStep();

	 displayColumnsCount = 1;
	 for (int col = 0; col < colscount; col++)
	 {
	 if (dgv.Columns[col].Visible == true)
	 {
	 try
	 {
	 objExcel.Cells[row + 2, displayColumnsCount] = dgv.Rows[row].Cells[col].Value.ToString().Trim();
	 displayColumnsCount++;
	 }
	 catch (Exception)
	 {

	 }

	 }
	 }
	 }
	 //隐藏进度条
	 //tempProgressBar.Visible = false;
	 //保存文件
	 objWorkbook.SaveAs(fileNameString, Missing.Value, Missing.Value, Missing.Value, Missing.Value,
	 Missing.Value, Excel.XlSaveAsAccessMode.xlShared, Missing.Value, Missing.Value, Missing.Value,
	 Missing.Value, Missing.Value);
	 }
	 catch (Exception error)
	 {
	 MessageBox.Show(error.Message, "警告 ", MessageBoxButtons.OK, MessageBoxIcon.Warning);
	 return;
	 }
	 finally
	 {
	 //关闭Excel应用
	 if (objWorkbook != null) objWorkbook.Close(Missing.Value, Missing.Value, Missing.Value);
	 if (objExcel.Workbooks != null) objExcel.Workbooks.Close();
	 if (objExcel != null) objExcel.Quit();

	 objsheet = null;
	 objWorkbook = null;
	 objExcel = null;
	 }
	 MessageBox.Show(fileNameString + "\n\n导出完毕! ", "提示 ", MessageBoxButtons.OK, MessageBoxIcon.Information);

	}

	#endregion

	以上资料来自网络，非常感谢各位作者
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