环境:c#.2005+Access+ Sql

一、把DataTable插入数据库

public static void DataTableToDB()

{

string _strExcelFileName = @"D:\example.xls";

DataTable dtExcel = ExcelToDataTable(_strExcelFileName,"Sheet1");

for (int i = 0; i < dtExcel.Rows.Count; i++)

{

InsertDataToAccess(dtExcel.Rows[i][0].ToString(), float.Parse(dtExcel.Rows[i][1].ToString()));

}

}

二、把Excel数据读入DataTable

public static DataTable ExcelToDataTable(string strExcelFileName, string strSheetName)

{

string strConn = "Provider=Microsoft.Jet.OLEDB.4.0;" + "Data Source=" + strExcelFileName + ";" +"Extended Properties=Excel 5.0;";

string strExcel = string.Format("select * from [{0}$]", strSheetName);

DataSet ds = new DataSet();

using (OleDbConnection conn = new OleDbConnection(strConn))

{

conn.Open();

OleDbDataAdapter adapter = new OleDbDataAdapter(strExcel, strConn);

adapter.Fill(ds, strSheetName);

conn.Close();

}

return ds.Tables[strSheetName];

}

三、向Access数据库表插入数据

public static void InsertDataToAccess(string _strPara,float _fPara)

{

OleDbConnection oleDbConn = new OleDbConnection();

oleDbConn.ConnectionString = @"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\ExcelData.mdb;User Id=admin;Password=;";

oleDbConn.Open();

string strInsertString = "INSERT INTO tb_excelData (strCollumn1,fCollumn2) VALUES (@strCollumn1,@fCollumn2)";

OleDbCommand oComm = new OleDbCommand(strInsertString, oleDbConn);

oComm.Parameters.Add("@strCollumn1", OleDbType.Char , 50);

oComm.Parameters["@strCollumn1"].Value = _strPara;

oComm.Parameters.Add("@fCollumn2", OleDbType.Double);

oComm.Parameters["@fCollumn2"].Value = _fPara;

ocomm.ExecuteNonQuery();

oleDbConn.Close();

}