C# 读取Excel数据到DataSet

/// <summary>

/// 读取Excel数据到DS

/// </summary>

/// <param name="excelName">xls文件路径(服务器物理路径)string RootDir =Server.MapPath(System.Web.HttpContext.Current.Request.ApplicationPath.ToString());//获取程序根目录</param>

/// <returns></returns>

public DataSet ExcelReader(string excelName)

{

// 拼写连接字符串，打开连接

string strConn = "Provider=Microsoft.Jet.OleDb.4.0;" + "data source=" + excelName + ";Extended Properties='Excel 8.0; HDR=YES; IMEX=1'";

OleDbConnection objConn = new OleDbConnection(strConn);

objConn.Open();

// 取得Excel工作簿中所有工作表

DataTable schemaTable = objConn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, null);

OleDbDataAdapter sqlada = new OleDbDataAdapter();

DataSet ds = new DataSet();

// 遍历工作表取得数据并存入Dataset

foreach (DataRow dr in schemaTable.Rows)

{

string strSql = "Select * From [" + dr[2].ToString().Trim() + "]";

OleDbCommand objCmd = new OleDbCommand(strSql, objConn);

sqlada.SelectCommand = objCmd;

sqlada.Fill(ds, dr[2].ToString().Trim());

}

objConn.Close();

return ds;

}