来源:http://blog.csdn.net/gisfarmer/article/details/3738959
看到论坛里面不断有人提问关于读取excel和导入excel的相关问题。闲暇时间将我所知道的对excel的操作加以总结,现在共享大家,希望给大家能够给大家带了一定的帮助。
另外我们还要注意一些简单的问题1.excel文件只能存储65535行数据,如果你的数据大于65535行,那么就需要将excel分割存放了。2.关于乱码,这主要是字符设置问题。
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
- {
- }
- }