asp.net将Execl读到DataSet或DataTable中_[Asp.Net教程]                                           /// 
  
/// 从Excel读取数据  
///   /// 
路径  
/// 
DataSet  public DataSet ImportFromExcel(string filePath)  
{  
DataSet ds = new DataSet();  
string connString = "Provider = Microsoft.Jet.OLEDB.4.0 ; Data Source = " + filePath + ";Extended Properties=\"Excel 8.0;HDR=Yes;IMEX=1\"";  
DataTable table = OleDbHelper.GetExcelTables(connString);  
if(table == null || table.Rows.Count <= 0)  
{  
return null;  
}  
foreach(DataRow dr in table.Rows)  
{  
string cmdText = "select * from [" + dr["TABLE_NAME"].ToString() + "]";  
DataTable dt = OleDbHelper.FillDataTable(connString, cmdText);  
dt.TableName = dr["TABLE_NAME"].ToString();  
ds.Tables.Add(dt);  
}  
return ds;  
}