将数据从 datagridview 保存到 excel 文件

Save data from datagridview to excel file

我已经创建了将数据从 datagridview 保存到 excel 文件的函数。

保存函数:

 try
        {
            Microsoft.Office.Interop.Excel._Application app = new Microsoft.Office.Interop.Excel.Application();
            Microsoft.Office.Interop.Excel._Workbook workbook = app.Workbooks.Add(Type.Missing);
            Microsoft.Office.Interop.Excel._Worksheet worksheet = null;
            app.Visible = true;
            worksheet = workbook.Sheets["Sheet1"];
            worksheet = workbook.ActiveSheet;
            worksheet.Name = "Records";

            try
            {
                for (int i = 0; i < dataGridView2.Columns.Count; i++)
                {
                    worksheet.Cells[1, i + 1] = dataGridView2.Columns[i].HeaderText;
                }
                for (int i = 0; i < dataGridView2.Rows.Count; i++)
                {
                    for (int j = 0; j < dataGridView2.Columns.Count; j++)
                    {
                        if (dataGridView2.Rows[i].Cells[j].Value != null)
                        {
                            worksheet.Cells[i + 2, j + 1] = dataGridView2.Rows[i].Cells[j].Value.ToString();
                        }
                        else
                        {
                            worksheet.Cells[i + 2, j + 1] = "";
                        }
                    }
                }

                //Getting the location and file name of the excel to save from user. 
                SaveFileDialog saveDialog = new SaveFileDialog();
                saveDialog.Filter = "Excel files (*.xlsx)|*.xlsx|All files (*.*)|*.*";
                saveDialog.FilterIndex = 2;

                if (saveDialog.ShowDialog() == System.Windows.Forms.DialogResult.OK)
                {
                    workbook.SaveAs(saveDialog.FileName);
                    MessageBox.Show("Export Successful", "Success", MessageBoxButtons.OK, MessageBoxIcon.Information);
                }
            }
            catch (System.Exception ex)
            {
                MessageBox.Show(ex.Message);
            }

            finally
            {
                app.Quit();
                workbook = null;
                worksheet = null;
            }
        }
        catch (Exception ex) { MessageBox.Show(ex.Message.ToString()); }

它在我的电脑上运行良好,版本为:

我尝试 运行 在我安装的第二台计算机上执行此操作 :

我需要更改代码以适用于两个版本吗? 我正在寻找可以执行相同但适用于每个办公室安装的示例。 顺便说一句,当我尝试在第二台计算机上 运行 时出现此错误:

如果您不一定要使用 MS Office 组件,那么我建议您改用 EPPlus 库。

string saveasFileName = .....

using (var package = new ExcelPackage())
{
    using (var worksheet = package.Workbook.Worksheets.Add("Records"))
    {
        worksheet.Cells[1, 1].Value = "Records from dataGridView2:";
        worksheet.Cells[1, 1].Style.Font.Bold = true;
        //  column headers
        for (int i = 0; i < dataGridView2.Columns.Count; i++)
        {
            worksheet.Cells[2, i + 1].Value = dataGridView2.Columns[i].HeaderText;
        }
        // actual data
        for (int i = 0; i < dataGridView2.Rows.Count; i++)
        {
            for (int j = 0; j < dataGridView2.Columns.Count; j++)
            {
                //  ... populate worksheet ...
                worksheet.Cells[i + 3, j + 1].Value = dataGridView2.Rows[i].Cells[j].Value?.ToString()??"";
            }
        }
        // save
        package.SaveAs(saveasFileName);
    }
}

我在 https://github.com/siccolo/EppPlus_CreateExcel/blob/master/Excel.cs

有一个例子

@Adamszsz - 如果您需要打开一个 excel 文件并加载到 gridview 中,那么您可以使用 oledb 连接,例如: - 打开 excel 文件 .xls :

...
var excelconnection = "Provider=Microsoft.Jet.OLEDB.4.0;" + "Data Source=" + filePath + ";Extended Properties=\"Excel 8.0;HDR=YES;IMEX=1\"";
var table = "[Sheet1$]"
//  using System.Data.OleDb
var excel = new OleDbDataAdapter("SELECT * FROM " + table, excelconnection);
var exceldata = new DataTable();
excel.Fill(exceldata);
...

而对于 excel 文件 .xlsx 使用 Net.SourceForge.Koogra.Excel2007.

这并不能直接回答您的代码抛出该错误的原因。但作为一种对我有用的替代方法,是否值得尝试?我使用了来自 Nuget 的 'ClosedXML' 包...可能还有其他选项,比如 'yob's reply,我相信它也可以正常工作。

using ClosedXML.Excel;

然后保存数据:

        SaveFileDialog saveFile1 = new SaveFileDialog();
        saveFile1.Filter = "Excel file|*.xlsx";
        saveFile1.Title = "save results as Excel spreadsheet";
        saveFile1.FileName = title + " -" + DateTime.Now.ToString("yyyyMMdd") + ".xlsx";
        if (saveFile1.ShowDialog() == DialogResult.OK)
        {
            var wb = new XLWorkbook();
            var ws = wb.Worksheets.Add(data, title);
            wb.SaveAs(saveFile1.FileName);
        }

'data'是数据表,所以你需要先将datagridview转换成数据表。正如我所说,这不是对您现有代码的回答,而是对我有用的可能替代方案:)祝你好运。