asp.net 数据库的连接和datatable类

//myAdapater.SelectCommand.Parameters.RemoveAt(sqlParas[i].ParameterName);
myAdapater.SelectCommand.Parameters.Add(sqlParas[i]);
}
myAdapater.Fill(myDS, tableName);
myAdapater.SelectCommand.Parameters.Clear();
myAdapater.Dispose();
return myDS.Tables[tableName];
}
catch (SqlException sqlE)
{
return null;
}
}
}
}