Excel 數據的讀取寫入

try
            {
                string strConn = "Provider=Microsoft.Jet.OLEDB.4.0;" + "Data Source=D:\\CData.xls;"+"Extended PropertIEs=Excel 8.0";
                string str = "select * from [Sheet1$]";

                OleDbCommand olecommand = new OleDbCommand(str, new OleDbConnection(strConn));
                OleDbDataAdapter oleadapter = new OleDbDataAdapter(olecommand);
                DataSet mydataset = new DataSet();
                oleadapter.Fill(mydataset, "[Sheet1$]");

                this.dataGridVIEw1.DataSource = mydataset;
                this.dataGridVIEw1.DataMember = "[sheet1$]";
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }

 

//需要添加 com 裡的  microsoft.Excel 11.0(其他版本也可） 的引用

Microsoft.Office.Interop.Excel.Application xApp = new Microsoft.Office.Interop.Excel.ApplicationClass();

            xApp.Visible = true;
            //得到WorkBook對象, 可以用兩種方式之一: 下面的是打開已有的文件
            Microsoft.Office.

歡迎光臨學網,收藏本篇文章 [1] [2] [3]

$False$

Interop.Excel.Workbook xBook = xApp.Workbooks._Open(@"D:\a.xls",
            Missing.Value, Missing.Value, Missing.Value, Missing.Value
            , Missing.Value, Missing.Value, Missing.Value, Missing.Value
            , Missing.Value, Missing.Value, Missing.Value, Missing.Value);
            //xBook=xApp.Workbooks.Add(Missing.Value);//新建文件的代碼
            //指定要操作的Sheet，兩種方式：

            Microsoft.Office.Interop.Excel.Worksheet xSheet = (Microsoft.Office.Interop.Excel.Worksheet)xBook.Sheets[1];
            //Excel.Worksheet xSheet=(Excel.Worksheet)xApp.ActiveSheet;

            //讀取數據，通過Range對象
            Microsoft.Office.Interop.Excel.Range rng1 = xSheet.get_Range("A1", Type.Missing);
            // Console.WriteLine(rng1.Value2);
            rng1.Value2 = "1";

            //讀取，通過Range對象，但使用不同的接口得到Range
            Microsoft.Office.Interop.Excel.Range rng2 = (Microsoft.Office.Interop.Excel.Range)xSheet.Cells[3, 1];
            //Console.WriteLine(rng2.Value2);
            rng2.Value2 = "2";

            //寫入數據
            Microsoft.Office.Interop.Excel.Range rng3 = xSheet.get_Range("C6", Missing.Value);
            rng3.Value2 = "Hello&文章整理:學網 http://www.xue5.com (本站) [1] [2] [3]

quot;;
            rng3.Interior.ColorIndex = 6; //設置Range的背景色

            //保存方式一：保存WorkBook
            xBook.SaveAs(@"D:\CData.xls",
            Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value,
            Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlNoChange, Missing.Value, Missing.Value, Missing.Value,
            Missing.Value, Missing.Value);
            ////保存方式二：保存WorkSheet
            //xSheet.SaveAs(@"D:\CData2.xls",
            //Missing.Value, Missing.ValuMissing.Value, Missing.Value,
            //Missing.Value, Missing.Value, Missing.Value, Missing.Value, Missing.Value);

            ////保存方式三
            //xBook.Save();

            //xSheet = null;
            //xBook = null;
            //xApp.Quit(); //這一句是非常重要的，否則Excel對象不能從內存中退出
            //xApp = null;