将DataGridView导出到Excel的简单方法
我想复制DataGridView数据到Excel，我正在使用此代码：
public static void ExportToExcel(DataGridView dgView) { Microsoft.Office.Interop.Excel.Application excelApp = null; try { // instantiating the excel application class object misValue = System.Reflection.Missing.Value; excelApp = new Microsoft.Office.Interop.Excel.Application(); Microsoft.Office.Interop.Excel.Workbook currentWorkbook = excelApp.Workbooks.Add(Type.Missing); Microsoft.Office.Interop.Excel.Worksheet currentWorksheet = (Microsoft.Office.Interop.Excel.Worksheet)currentWorkbook.ActiveSheet; currentWorksheet.Columns.ColumnWidth = 18; if (dgView.Rows.Count > 0) { currentWorksheet.Cells[1, 1] = DateTime.Now.ToString("s"); int i = 1; foreach (DataGridViewColumn dgviewColumn in dgView.Columns) { // Excel work sheet indexing starts with 1 currentWorksheet.Cells[2, i] = dgviewColumn.Name; ++i; } Microsoft.Office.Interop.Excel.Range headerColumnRange = currentWorksheet.get_Range("A2", "G2"); headerColumnRange.Font.Bold = true; headerColumnRange.Font.Color = 0xFF0000; //headerColumnRange.EntireColumn.AutoFit(); int rowIndex = 0; for (rowIndex = 0; rowIndex < dgView.Rows.Count; rowIndex++) { DataGridViewRow dgRow = dgView.Rows[rowIndex]; for (int cellIndex = 0; cellIndex < dgRow.Cells.Count; cellIndex++) { currentWorksheet.Cells[rowIndex + 3, cellIndex + 1] = dgRow.Cells[cellIndex].Value; } } Microsoft.Office.Interop.Excel.Range fullTextRange = currentWorksheet.get_Range("A1", "G" + (rowIndex + 1).ToString()); fullTextRange.WrapText = true; fullTextRange.HorizontalAlignment = Microsoft.Office.Interop.Excel.XlHAlign.xlHAlignLeft; } else { string timeStamp = DateTime.Now.ToString("s"); timeStamp = timeStamp.Replace(':', '-'); timeStamp = timeStamp.Replace("T", "__"); currentWorksheet.Cells[1, 1] = timeStamp; currentWorksheet.Cells[1, 2] = "No error occured"; } using (SaveFileDialog exportSaveFileDialog = new SaveFileDialog()) { exportSaveFileDialog.Title = "Select Excel File"; exportSaveFileDialog.Filter = "Microsoft Office Excel Workbook(*.xlsx)|*.xlsx"; if (DialogResult.OK == exportSaveFileDialog.ShowDialog()) { string fullFileName = exportSaveFileDialog.FileName; // currentWorkbook.SaveCopyAs(fullFileName); // indicating that we already saved the workbook, otherwise call to Quit() will pop up // the save file dialogue box currentWorkbook.SaveAs(fullFileName, Microsoft.Office.Interop.Excel.XlFileFormat.xlOpenXMLWorkbook, System.Reflection.Missing.Value, misValue, false, false, Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlNoChange, Microsoft.Office.Interop.Excel.XlSaveConflictResolution.xlUserResolution, true, misValue, misValue, misValue); currentWorkbook.Saved = true; MessageBox.Show("Exported successfully", "Exported to Excel", MessageBoxButtons.OK, MessageBoxIcon.Information); } } } catch (Exception ex) { MessageBox.Show(ex.Message, "Exception", MessageBoxButtons.OK, MessageBoxIcon.Error); } finally { if (excelApp != null) { excelApp.Quit(); } } } 但是由于有20多万条logging，需要很长时间才能出口。 有没有更快的方法来做到这一点？
试试这个代码。 它比正常的互操作方法更快，也可以转换成CSV，可以被Excel轻松读取。
int cols; //open file StreamWriter wr = new StreamWriter("GB STOCK.csv"); //determine the number of columns and write columns to file cols = dgvStock.Columns.Count; for (int i = 0; i < cols - 1; i++) { wr.Write(dgvStock.Columns[i].Name.ToString().ToUpper() + ","); } wr.WriteLine(); //write rows to excel file for (int i = 0; i < (dgvStock.Rows.Count - 1); i++) { for (int j = 0; j < cols; j++) { if (dgvStock.Rows[i].Cells[j].Value != null) { wr.Write(dgvStock.Rows[i].Cells[j].Value + ","); } else { wr.Write(","); } } wr.WriteLine(); } //close file wr.Close();
如何在C＃中的asp.net中导出GridView数据。 更多详情请点击这里