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【CSharp】操作Excel文件(读取Excel，写入Excel)

作者:京基 / 发布于2015/11/4/ 570


	1.加载Excel（读取excel内容）返回值是一个DataSet

	//加载Excel
	public static DataSet LoadDataFromExcel(string filePath)
	{
	 try
	 {
	 string strConn;
	 strConn = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + filePath + ";Extended Properties='Excel 8.0;HDR=False;IMEX=1'";
	 OleDbConnection OleConn = new OleDbConnection(strConn);
	 OleConn.Open();
	 String sql = "SELECT * FROM [Sheet1$]";//可是更改Sheet名称，比如sheet2，等等
	
	 OleDbDataAdapter OleDaExcel = new OleDbDataAdapter(sql, OleConn);
	 DataSet OleDsExcle = new DataSet();
	 OleDaExcel.Fill(OleDsExcle, "Sheet1");
	 OleConn.Close();
	 return OleDsExcle;
	 }
	 catch (Exception err)
	 {
	 MessageBox.Show("数据绑定Excel失败!失败原因：" + err.Message, "提示信息",
	 MessageBoxButtons.OK, MessageBoxIcon.Information);
	 return null;
	 }
	}

	

	2.写入Excel内容，参数：excelTable是要导入excel的一个table表

	public static bool SaveDataTableToExcel(System.Data.DataTable excelTable, string filePath)
	 {
	 Microsoft.Office.Interop.Excel.Application app =
	 new Microsoft.Office.Interop.Excel.ApplicationClass();
	 try
	 {
	 app.Visible = false;
	 Workbook wBook = app.Workbooks.Add(true);
	 Worksheet wSheet = wBook.Worksheets[1] as Worksheet;
	 if (excelTable.Rows.Count > 0)
	 {
	 int row = 0;
	 row = excelTable.Rows.Count;
	 int col = excelTable.Columns.Count;
	 for (int i = 0; i < row; i++)
	 {
	 for (int j = 0; j < col; j++)
	 {
	 string str = excelTable.Rows[i][j].ToString();
	 wSheet.Cells[i + 2, j + 1] = str;
	 }
	 }
	 }
	
	 int size = excelTable.Columns.Count;
	 for (int i = 0; i < size; i++)
	 {
	 wSheet.Cells[1, 1 + i] = excelTable.Columns[i].ColumnName;
	 }
	 //设置禁止弹出保存和覆盖的询问提示框
	 app.DisplayAlerts = false;
	 app.AlertBeforeOverwriting = false;
	 //保存工作簿
	 wBook.Save();
	 //保存excel文件
	 app.Save(filePath);
	 app.SaveWorkspace(filePath);
	 app.Quit();
	 app = null;
	 return true;
	 }
	 catch (Exception err)
	 {
	 MessageBox.Show("导出Excel出错！错误原因：" + err.Message, "提示信息",
	 MessageBoxButtons.OK, MessageBoxIcon.Information);
	 return false;
	 }
	 finally
	 {
	 }
	 }

试试其它关键字

　读取Excel　　写入Excel　

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