将datagridview和标签值导出到excel

using NPOI.SS.UserModel;
using NPOI.XSSF.UserModel;
using System.IO;
using System.Windows.Forms;

// 获取DataGridView中的数据和标签值
var data = new List<List<string>>();
foreach (DataGridViewRow row in dataGridView.Rows)
{
    var rowData = new List<string>();
    foreach (DataGridViewCell cell in row.Cells)
    {
        rowData.Add(cell.Value.ToString());
    }
    data.Add(rowData);
}

// 创建新的Excel文件
var workbook = new XSSFWorkbook();
var sheet = workbook.CreateSheet("Sheet1");

// 写入数据和标签值到Excel文件
for (int i = 0; i < data.Count; i++)
{
    var rowData = data[i];
    var excelRow = sheet.CreateRow(i);
    for (int j = 0; j < rowData.Count; j++)
    {
        var cellData = rowData[j];
        var excelCell = excelRow.CreateCell(j);
        excelCell.SetCellValue(cellData);
    }
}

// 保存Excel文件
using (var fileStream = new FileStream("output.xlsx", FileMode.Create))
{
    workbook.Write(fileStream);
}

// 打开保存的Excel文件
System.Diagnostics.Process.Start("output.xlsx");