c# 实现将dataGridView中的数据导出到Excel

using System;using System.Collections.Generic;using System.Windows.Forms;using System.Text;using System.Diagnostics;using System.IO;using Microsoft.Office.Interop.Excel;/*调用代码Export ex = new Export();ex.setExcel(dgvSupplier);*/namespace ClothingSales_0._5{ public class Export { //private string fileName; /// <summary> /// 读入Excel的数据 在DataGridView中显示 /// </summary> /// <param name="dgv">显示内容的DataGridView的名称</param> public void setExcel(DataGridView dgv,string name) { //总可见列数，总可见行数 int colCount = dgv.Columns.GetColumnCount(DataGridViewElementStates.Visible); int rowCount = dgv.Rows.GetRowCount(DataGridViewElementStates.Visible); //dataGridView 没有数据提示 if (dgv.Rows.Count == 0 || rowCount == 0) { MessageBox.Show("表中没有数据", "提示"); } else { //选择创建文件的路径 SaveFileDialog save = new SaveFileDialog(); save.Filter = "excel files(*.xls)|*.xls"; save.Title = "请选择要导出数据的位置"; save.FileName = name+DateTime.Now.ToLongDateString(); if (save.ShowDialog() == DialogResult.OK) { string fileName=save.FileName; //MessageBox.Show(save.FileName); // 创建Excel对象 Microsoft.Office.Interop.Excel.Application excel = new Microsoft.Office.Interop.Excel.ApplicationClass(); if (excel == null) { MessageBox.Show("Excel无法启动", "提示"); return; } //创建Excel工作薄 Microsoft.Office.Interop.Excel.Workbook excelBook = excel.Workbooks.Add(true); Microsoft.Office.Interop.Excel.Worksheet excelSheet = (Microsoft.Office.Interop.Excel.Worksheet)excelBook.Worksheets[1]; //excel.Application.Workbooks.Add(true); //生成字段名称 int k = 0; for (int i = 0; i < dgv.ColumnCount; i++) { if (dgv.Columns[i].Visible) //不导出隐藏的列 { excel.Cells[1, k + 1] = dgv.Columns[i].HeaderText; k++; } } //填充数据 for (int i = 0; i < dgv.RowCount; i++) { k = 0; for (int j = 0; j < dgv.ColumnCount; j++) { if (dgv.Columns[j].Visible) //不导出隐藏的列 { if (dgv[j, i].ValueType == typeof(string)) { excel.Cells[i + 2, k + 1] = "" + dgv[j, i].Value.ToString(); } else { excel.Cells[i + 2, k + 1] = dgv[j, i].Value.ToString(); } } k++; } } try { excelBook.Saved = true; excelBook.SaveCopyAs(fileName); } catch { MessageBox.Show("导出失败，文件可能正在使用中","提示"); } } } } }}