DevExpress XtraGrid 数据导出导入Excel

// <summary>
        /// 导出按钮
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void FrmAppItem_F9ClickHandler(object sender, EventArgs e)
        {
            string strName = "";
            try
            {
                if (gvSelectedItems.RowCount == 0)
                {
                    MessageBoxShow.ShowProMessage("Grid表格中没有数据，不能导出为Excel");
                    return;
                }
                DateTime MMSDate = RealSailing.UI.Service.ServiceManager.GetSystemDateTime();
                using (SaveFileDialog saveFileDialog = new SaveFileDialog())
                {
                    saveFileDialog.Filter = "导出Excel(*.xls)|*.xls";
                    saveFileDialog.FilterIndex = 0;
                    saveFileDialog.RestoreDirectory = true;
                    saveFileDialog.CreatePrompt = true;
                    saveFileDialog.Title = "导出文件保存路径";
                    //默认的文件名
                    saveFileDialog.FileName = strTitle + " - " + MMSDate.ToString("yyyyMMdd");
                    //saveFileDialog.ShowDialog();
                    if (saveFileDialog.ShowDialog() == DialogResult.OK)
                    {
                        strName = saveFileDialog.FileName;
                        if (strName.Length != 0)
                        {
                            gridColumn2.Visible = false;
                            gridItemID2.Visible = true;
                            gridItemID2.VisibleIndex = 0;
                            gvSelectedItems.ExportToXls(strName);
                            gridColumn2.Visible = true;
                            gridItemID2.Visible = false;
                            MessageBoxShow.ShowProMessage("导出Excel成功", strTitle);
                            //关闭操作
                            System.Reflection.Missing miss = System.Reflection.Missing.Value;
                            Microsoft.Office.Interop.Excel.Application objExcel = new Microsoft.Office.Interop.Excel.Application();
                            Microsoft.Office.Interop.Excel.Workbook objWorkBook = objExcel.Workbooks.Add(miss);
                            Microsoft.Office.Interop.Excel.Worksheet objSheet = (Microsoft.Office.Interop.Excel.Worksheet)objWorkBook.ActiveSheet;
                            objWorkBook.Close(null, null, null);
                            objExcel.Workbooks.Close();
                            objExcel.Quit();
                            System.Runtime.InteropServices.Marshal.ReleaseComObject(objExcel);
                            System.Runtime.InteropServices.Marshal.ReleaseComObject(objWorkBook);
                            System.Runtime.InteropServices.Marshal.ReleaseComObject(objSheet);
                            objSheet = null;
                            objWorkBook = null;
                            objExcel = null;
                        }
                        else
                        {
                            MessageBoxShow.ShowProMessage("保存的Excel名称不能为空");
                        }

                    }
                }
            }
            catch (System.Exception msg)
            {
                MessageBoxShow.ShowProMessage(msg.ToString());
            }
            finally
            {
                GC.Collect();
            }
        }

导入Excel
      /// <summary>
        /// 导入按钮
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void FrmAppItem_F8ClickHandler(object sender, EventArgs e)
        {
            try
            {
                OpenFileDialog ofd = new OpenFileDialog();
                ofd.Title = "Excel文件";
                ofd.FileName = "";
                ofd.InitialDirectory = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);
                ofd.Filter = "Excel文件(*.xls)|*.xls";
                ofd.ValidateNames = true; //文件有效性验证ValidateNames，验证用户输入是否是一个有效的Windows文件名
                ofd.CheckFileExists = true; //验证路径有效性
                ofd.CheckPathExists = true; //验证文件有效性
                string strName = string.Empty;
                if (ofd.ShowDialog() == DialogResult.OK)
                {
                    strName = ofd.FileName;
                }
                if (strName == "")
                {
                    return;
                }
                if (EcxelToGridView(strName, this.gvSelectedItems))
                {
                    MessageBoxShow.ShowProMessage("数据导入成功", strTitle);
                    //isChanged = true;
                }
                else
                    MessageBoxShow.ShowProMessage("数据导入失败,请检查导入的Excel格式与数据是否正确", strTitle);
                this.Cursor = Cursors.Default;
            }
            catch (System.Exception Msg)
            {
                MessageBoxShow.ShowProMessage("数据导入失败,请检查导入的Excel格式与数据是否正确", strTitle);
                //MessageBoxShow.ShowErrMessage(Msg.ToString()+"数据导入失败,请检查导入的Excel格式与数据是否正确");
            }
        }
        /// <summary>
        /// Excel数据导入方法
        /// </summary>
        /// <param name="filePath"></param>
        /// <param name="dgv"></param>
        /// <returns></returns>
        public bool EcxelToGridView(string filePath, DevExpress.XtraGrid.Views.Grid.GridView dgv)
        {
            bool isVailed = false;
            string itemid = string.Empty;
            string itemplu = string.Empty;
            string itemName = string.Empty;
            //根据路径打开一个Excel文件并将数据填充到ds中
            try
            {
                string strConn = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source = " + filePath + ";Extended Properties ='Excel 8.0;HDR=YES;IMEX=1'";
                OleDbConnection conn = new OleDbConnection(strConn);
                conn.Open();
                string strExcel = "";
                OleDbDataAdapter myCommand = null;
                //获取Excel中的sheet的名称
                string SheetName= GetExcelSheetNames(filePath)[0];
                //strExcel = "select * from [sheet1$]";
                strExcel = "select * from [" + SheetName + "$]";
                myCommand = new OleDbDataAdapter(strExcel, strConn);
                // RealSailing.DataSet.SlipInfo.SLPD010_SLIPSUMHDS ds = new RealSailing.DataSet.SlipInfo.SLPD010_SLIPSUMHDS();
                System.Data.DataSet ds = new System.Data.DataSet();
                myCommand.Fill(ds, "table1");
                conn.Close();
                if (ds.Tables["table1"].Rows.Count == 0)
                {
                    MessageBoxShow.ShowProMessage("要导入的Excel没有数据");
                }
                ExcelDS.Clear();
                for (int j = 0; j < ds.Tables["table1"].Rows.Count; j++)
                {
                    if (ds.Tables["table1"].Rows[j]["商品id"].ToString().Trim() != string.Empty)
                        itemid = ds.Tables["table1"].Rows[j]["商品id"].ToString().Trim();
                    if (ds.Tables["table1"].Rows[j]["商品货号"].ToString().Trim() != string.Empty)
                        itemplu = ds.Tables["table1"].Rows[j]["商品货号"].ToString().Trim();
                    else
                        itemplu = " ";
                    if (ds.Tables["table1"].Rows[j]["商品名称"].ToString().Trim() != string.Empty)
                        itemName = ds.Tables["table1"].Rows[j]["商品名称"].ToString().Trim();
                    //把数据填充到ds中
                    FillDataToDs(itemid, itemplu, itemName);
                    isVailed = true;
                }
                if (lblSelectDs.Tables["MSTM150_ITEM"].Rows.Count == 0)
                {
                    isVailed = false;
                }
                else if (ExcelDS.Tables["MSTM150_ITEM"].Rows.Count>0)
                {//重复数据 显示提示
                    MsShowData msShow = new MsShowData();
                    msShow.GetDs = ExcelDS;
                    msShow.ShowDialog();
                    isVailed = true;
                }
                return isVailed;
            }
            catch (System.Data.OleDb.OleDbException ex)
            {
                if (ex.Message.IndexOf("不是一个有效名称。请确认它不包含无效的字符或标点，且名称不太长") != -1)
                {
                    return false;
                }
                return false;
            }
        }
        /// <summary>
        /// 获取获得当前你选择的Excel Sheet的所有名字
        /// </summary>
        /// <param name="filePath"></param>
        /// <returns></returns>
        public static string[] GetExcelSheetNames(string filePath)
        {
            Microsoft.Office.Interop.Excel.ApplicationClass excelApp = new Microsoft.Office.Interop.Excel.ApplicationClass();
            Microsoft.Office.Interop.Excel.Workbooks wbs = excelApp.Workbooks;
            Microsoft.Office.Interop.Excel.Workbook wb = wbs.Open(filePath, Type.Missing, Type.Missing, Type.Missing, Type.Missing,
            Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing,
            Type.Missing, Type.Missing, Type.Missing, Type.Missing);
            int count = wb.Worksheets.Count;
            string[] names = new string[count];
            for (int i = 1; i <= count; i++)
            {
                names[i - 1] = ((Microsoft.Office.Interop.Excel.Worksheet)wb.Worksheets[i]).Name;
            }
            wb.Close(null, null, null);
            excelApp.Quit();
            wbs.Close();
            System.Runtime.InteropServices.Marshal.ReleaseComObject(excelApp);
            System.Runtime.InteropServices.Marshal.ReleaseComObject(excelApp);
            System.Runtime.InteropServices.Marshal.ReleaseComObject(wbs);
            excelApp = null;
            wbs = null;
            wb = null;
            return names;
        }
        private void FillDataToDs(string itemid, string itemplu, string itemName)
        {
            DataRow[] rows = lblSelectDs.Tables["MSTM150_ITEM"].Select(string.Format("MSTM150_ITEMID='{0}'", itemid));
            if (rows.Length == 0)
            {
                if (itemid.Trim() != string.Empty && itemplu.Trim() != string.Empty && itemName != string.Empty)
                {
                    DataRow dr;
                    dr = lblSelectDs.Tables["MSTM150_ITEM"].NewRow();
                    dr[MSTM150_ITEM.MSTM150_ITEMID] = itemid;
                    dr["MSTM151_PLUCD"] = itemplu;
                    dr["MSTM150_ITEMCNM"] = itemName;
                    dr["CheckRemove"] = "0";
                    lblSelectDs.Tables["MSTM150_ITEM"].Rows.Add(dr);
                }
                //else if (itemid.Trim() == string.Empty)
                //{
                //    string st = "导入的商品id不允许为空";
                //    sb.Append(st);
                //    sb.Append("\r\n");
                //}
                //else if (itemplu.Trim() == string.Empty)
                //{
                //    string st = "导入的商品编码不允许为空";
                //    sb.Append(st);
                //    sb.Append("\r\n");
                //}
                //else if (itemName.Trim() == string.Empty)
                //{
                //    string st = "导入的商品名称不允许为空";
                //    sb.Append(st);
                //    sb.Append("\r\n");
                //}
            }
            else if(rows.Length>0)
            {
                ExcelDS.Tables["MSTM150_ITEM"].ImportRow(rows[0]);
            }
        }
        private void gvSelectedItems_RowCountChanged(object sender, EventArgs e)
        {//导出按钮
            this.F9Property.Enable=(gvSelectedItems.RowCount == 0) ? false : true;
        }

//导入导出Excel 注意的是及时的关闭Excel,不然占用进程很麻烦，我调试了大半天太弄好的