Winform datagirdview导出Excel 封装方法 好用！！！

转自：https://www.cnblogs.com/chaowang/p/6265698.html

1,窗体设计

首先需要引入程序集：Microsoft.Office.Interop.Excel  （如果没有引用过的需要右键添加引用再搜索就行了）

实现的方法：

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

/// <summary>    ///    /// </summary>    /// <param name="fileName">文件路径</param>    /// <param name="myDGV">控件DataGridView</param>    private void ExportExcels(string fileName, DataGridView myDGV)    {        string saveFileName = "";        SaveFileDialog saveDialog = new SaveFileDialog();        saveDialog.DefaultExt = "xls";        saveDialog.Filter = "Excel文件|*.xls";        saveDialog.FileName = fileName;        saveDialog.ShowDialog();        saveFileName = saveDialog.FileName;        if (saveFileName.IndexOf(":") < 0) return; //被点了取消        Microsoft.Office.Interop.Excel.Application xlApp = new Microsoft.Office.Interop.Excel.Application();        if (xlApp == null)        {            MessageBox.Show("无法创建Excel对象，可能您的机子未安装Excel");            return;        }        Microsoft.Office.Interop.Excel.Workbooks workbooks = xlApp.Workbooks;        Microsoft.Office.Interop.Excel.Workbook workbook = workbooks.Add(Microsoft.Office.Interop.Excel.XlWBATemplate.xlWBATWorksheet);        Microsoft.Office.Interop.Excel.Worksheet worksheet = (Microsoft.Office.Interop.Excel.Worksheet)workbook.Worksheets[1];//取得sheet1        //写入标题        for (int i = 0; i < myDGV.ColumnCount; i++)        {            worksheet.Cells[1, i + 1] = myDGV.Columns[i].HeaderText;        }        //写入数值        for (int r = 0; r < myDGV.Rows.Count; r++)        {            for (int i = 0; i < myDGV.ColumnCount; i++)            {                worksheet.Cells[r + 2, i + 1] = myDGV.Rows[r].Cells[i].Value;            }            System.Windows.Forms.Application.DoEvents();        }        worksheet.Columns.EntireColumn.AutoFit();//列宽自适应        if (saveFileName != "")        {            try            {                workbook.Saved = true;                workbook.SaveCopyAs(saveFileName);            }            catch (Exception ex)            {                MessageBox.Show("导出文件时出错,文件可能正被打开！ " + ex.Message);            }        }        xlApp.Quit();        GC.Collect();//强行销毁        MessageBox.Show("文件： " + fileName + ".xls 保存成功", "信息提示", MessageBoxButtons.OK, MessageBoxIcon.Information);    }

　点击按钮调用

1 2 3 4 5

private void button1_Click(object sender, EventArgs e) {     string a = "D:" + "\KKHMD.xls";     ExportExcels(a, dataGridView1); }

　　完成截图