OpenFileDialog选择文件并获取Excel数据/开窗选择保存路径

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public static System.Data.DataTable ExcelToDatatalbe(int startRow)//导入{OpenFileDialog ofd = new OpenFileDialog();ofd.Filter = "Excel文件|*.xls;*.xlsx";ofd.Title = "选择Excel文件";ofd.Multiselect = false;if (ofd.ShowDialog() == DialogResult.OK){Aspose.Cells.Workbook book = new Aspose.Cells.Workbook();book.Open(ofd.FileName);Aspose.Cells.Worksheet sheet = book.Worksheets[0];Cells cells = sheet.Cells;//获取excel中的数据保存到一个datatable中System.Data.DataTable dt_Import = cells.ExportDataTableAsString(startRow, 0, cells.MaxDataRow + 1, cells.MaxDataColumn + 1, false);// dt_Import.return dt_Import;}elsereturn new System.Data.DataTable();}

/// <summary>/// 从Excel获取数据  NPOI/// </summary>/// <param name="startRow"></param>/// <returns></returns>public static System.Data.DataTable GetExcelData(int startRow, out string msg){#region NPOI方式OpenFileDialog ofd = new OpenFileDialog();ofd.Filter = "Excel文件|*.xls;*.xlsx";ofd.Title = "选择Excel文件";ofd.Multiselect = false;msg = "";if (ofd.ShowDialog() == DialogResult.OK){bool hasTitle = true;string fileName = ofd.FileName;Microsoft.Office.Interop.Excel.Application app = new Microsoft.Office.Interop.Excel.Application();Sheets sheets;object oMissiong = System.Reflection.Missing.Value;Microsoft.Office.Interop.Excel.Workbook workbook = null;System.Data.DataTable data = new System.Data.DataTable();try{if (app == null) return null;workbook = app.Workbooks.Open(fileName, oMissiong, oMissiong, oMissiong, oMissiong, oMissiong,oMissiong, oMissiong, oMissiong, oMissiong, oMissiong, oMissiong, oMissiong, oMissiong, oMissiong);sheets = workbook.Worksheets;//将数据读入到DataTable中Microsoft.Office.Interop.Excel.Worksheet worksheet = (Microsoft.Office.Interop.Excel.Worksheet)sheets.get_Item(1);//读取第一张表 if (worksheet == null) return null;int iRowCount = worksheet.UsedRange.Rows.Count;int iColCount = worksheet.UsedRange.Columns.Count;//生成列头for (int i = 0; i < iColCount; i++){var name = "column" + i;if (hasTitle){var txt = ((Microsoft.Office.Interop.Excel.Range)worksheet.Cells[startRow, i + 1]).Text.ToString();if (!string.IsNullOrEmpty(txt)) name = txt;}while (data.Columns.Contains(name)) name = name + "_1";//重复行名称会报错。data.Columns.Add(new DataColumn(name, typeof(string)));}//生成行数据Microsoft.Office.Interop.Excel.Range range;int rowIdx = hasTitle ? 2 : 1;for (int iRow = rowIdx; iRow <= iRowCount; iRow++){DataRow dr = data.NewRow();for (int iCol = 1; iCol <= iColCount; iCol++){range = (Microsoft.Office.Interop.Excel.Range)worksheet.Cells[iRow, iCol];dr[iCol - 1] = (range.Value2 == null) ? "" : range.Text.ToString();}data.Rows.Add(dr);}}catch (Exception ex){ExceptionUtil.DataCL_HTTP(ex, "", "", FileUtil.GetCurSourceFileName());msg = ex.Message;return null;}finally{workbook.Close(false, oMissiong, oMissiong);System.Runtime.InteropServices.Marshal.ReleaseComObject(workbook);workbook = null;app.Workbooks.Close();app.Quit();System.Runtime.InteropServices.Marshal.ReleaseComObject(app);app = null;}return data;}#endregionreturn null;}

//选择文件夹
FolderBrowserDialog folderBrowserDialog = new FolderBrowserDialog();
if (folderBrowserDialog.ShowDialog(this) == DialogResult.OK)
{string FolderName = folderBrowserDialog.SelectedPath;
}

 

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