SaveFileDialog 一直保存文件到 Document 目录

Question

我有一个奇怪的问题，我正在使用 SaveFileDialog 将我的数据保存在 excel 文件中。我将 RestoreDirectory 设置为 true 并将 InitialDirectory 设置为 Environemnt.SpecialFolder.Desktop 但程序每次都会将文件保存在 Documents 中。我 select 文件最终位于 Documents 中的目录并不重要。任何的想法？

 private void btnExcellExport_Click(object sender, EventArgs e)
    {
        if (!(dataGridView1.RowCount == 0))
        {
            if (backgroundWorker1.IsBusy)
                return;
            using (SaveFileDialog sfd = new SaveFileDialog() { Filter = "Excel Workbook|*.xlsx", RestoreDirectory = true, InitialDirectory = Environment.SpecialFolder.Desktop.ToString()
        })
            {
                sfd.FileName = HelpMeClass.SearchString;
                if (sfd.ShowDialog() == DialogResult.OK)
                {
                    progressBar1.Show();
                    progressBar1.Minimum = 0;
                    progressBar1.Value = 0;
                    backgroundWorker1.RunWorkerAsync();

                }
            }
        }
        else
        {
            MessageBox.Show("Oops! Nothing to export!", "Information", MessageBoxButtons.OK, MessageBoxIcon.Information, MessageBoxDefaultButton.Button1);
        }
    }

BackgroundWorker 工作：

private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e)
    {
        Microsoft.Office.Interop.Excel.Application excel = new Microsoft.Office.Interop.Excel.Application();
        Workbook wb = excel.Workbooks.Add(XlSheetType.xlWorksheet);
        Worksheet ws = (Worksheet)excel.ActiveSheet;

        excel.Visible = true;
        int index = 0;

        int process = dataGridView1.Rows.Count;
        int process1 = dataGridView2.Rows.Count;
        int process2 = dataGridView3.Rows.Count;



        ws.get_Range("A1", "C1").Merge(); // Merge columns for header
        ws.Cells[1, 1] = "Keyword: " + HelpMeClass.SearchString;
        ws.Cells[1, 1].Font.Bold = true; // Bold font in header

        foreach (DataGridViewRow row in dataGridView1.Rows)
        {
            backgroundWorker1.ReportProgress(index++ * 100 / process);

            foreach (DataGridViewCell cell in row.Cells)
            {
                ws.Cells[index + 1, 1] = cell.Value;
            }
        }

        index = 0;         
        foreach (DataGridViewRow row in dataGridView2.Rows)
        {
            backgroundWorker1.ReportProgress(index++ * 100 / process1);

            foreach (DataGridViewCell cell in row.Cells)
            {
                ws.Cells[index + 1, 2] = cell.Value;
            }
        }

        index = 0;
        foreach (DataGridViewRow row in dataGridView3.Rows)
        {
            backgroundWorker1.ReportProgress(index++ * 100 / process2);

            foreach (DataGridViewCell cell in row.Cells)
            {
                ws.Cells[index + 1, 3] = cell.Value;
            }
        }

        ws.Columns.AutoFit();



        try
        {
            ws.SaveAs(HelpMeClass.SearchString, XlFileFormat.xlWorkbookDefault, Type.Missing, Type.Missing, false, false, XlSaveAsAccessMode.xlNoChange, XlSaveConflictResolution.xlLocalSessionChanges, Type.Missing, Type.Missing);
        }
        catch (Exception ex)
        {
            MessageBox.Show("Ooops! I can`t access the file. Make sure the excel file is closed and try again. " + ex.Message, "Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning, MessageBoxDefaultButton.Button1);
            return;
        }

Answer 1

关键是在调用 SaveAs 时包含一个 Path，这样您就可以完全控制文件的保存位置。当参数称为 Filename 时，您可以按照 docs:

传递完整路径

A string that indicates the name of the file to be saved. You can include a full path; if you don't, Microsoft Excel saves the file in the current folder.

所以代替：

ws.SaveAs(HelpMeClass.SearchString, XlFileFormat.xlWorkbookDefault, Type.Missing, Type.Missing, false, false, XlSaveAsAccessMode.xlNoChange, XlSaveConflictResolution.xlLocalSessionChanges, Type.Missing, Type.Missing);

你会打电话给：

ws.SaveAs(Path.Combine(HelpMeClass.GetExcelDirectory, HelpMeClass.SearchString), XlFileFormat.xlWorkbookDefault, Type.Missing, Type.Missing, false, false, XlSaveAsAccessMode.xlNoChange, XlSaveConflictResolution.xlLocalSessionChanges, Type.Missing, Type.Missing);

SaveFileDialog 一直保存文件到 Document 目录

SaveFileDialog keeps saving files to Document directory

c#

excel

saving-data