net怎样获取webservice返回的xml中节点的值

.net怎样获取webservice返回的xml中节点的值 并绑定到dropdownlist中

加载树。遍历，放到集合，绑定

能详细说一下吗 谢谢

这是我通过webservice 返回的xml
<?xml version="1.0" encoding="utf-8" ?> 
- <ArrayOfManufacturersModel xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns="http://wheelwizards.net/tf_service/">
- <ManufacturersModel>
  <ManufacturerID>Manu_Acura</ManufacturerID> 
  <ManufacturerName>Acura USA</ManufacturerName> 
  <ChangeDate>RESTRICTED</ChangeDate> 
  </ManufacturersModel>
- <ManufacturersModel>
  <ManufacturerID>Manu_AIXAM</ManufacturerID> 
  <ManufacturerName>Aixam</ManufacturerName> 
  <ChangeDate>RESTRICTED</ChangeDate> 
  </ManufacturersModel>
- <ManufacturersModel>
  <ManufacturerID>MANU_ALFA_ROMEO</ManufacturerID> 
  <ManufacturerName>Alfa Romeo</ManufacturerName> 
  <ChangeDate>RESTRICTED</ChangeDate> 
  </ManufacturersModel>
...

C# Code

string url = "ddd";
  HttpWebRequest webrequest = (HttpWebRequest)HttpWebRequest.Create(url);
  HttpWebResponse webreponse = (HttpWebResponse)webrequest.GetResponse();
  Stream stream = webreponse.GetResponseStream();
  byte[] rsByte = new Byte[webreponse.ContentLength]; stream
  aa = System.Text.Encoding.UTF8.GetString(rsByte, 0, rsByte.Length).ToString();
  Response.Write(aa);

路过，帮顶！

这是我通过webservice 返回的xml
<?xml version="1.0" encoding="utf-8" ?>  
- <ArrayOfManufacturersModel xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns="http://wheelwizards.net/tf_service/">
- <ManufacturersModel>
  <ManufacturerID>Manu_Acura</ManufacturerID>  
  <ManufacturerName>Acura USA</ManufacturerName>  
  <ChangeDate>RESTRICTED</ChangeDate>  
  </ManufacturersModel>
- <ManufacturersModel>
  <ManufacturerID>Manu_AIXAM</ManufacturerID>  
  <ManufacturerName>Aixam</ManufacturerName>  
  <ChangeDate>RESTRICTED</ChangeDate>  
  </ManufacturersModel>
- <ManufacturersModel>
  <ManufacturerID>MANU_ALFA_ROMEO</ManufacturerID>  
  <ManufacturerName>Alfa Romeo</ManufacturerName>  
  <ChangeDate>RESTRICTED</ChangeDate>  
  </ManufacturersModel>
...

C# Code

string url = "ddd";
  HttpWebRequest webrequest = (HttpWebRequest)HttpWebRequest.Create(url);
  HttpWebResponse webreponse = (HttpWebResponse)webrequest.GetResponse();
  Stream stream = webreponse.GetResponseStream();
  byte[] rsByte = new Byte[webreponse.ContentLength]; stream
  aa = System.Text.Encoding.UTF8.GetString(rsByte, 0, rsByte.Length).ToString();
  Response.Write(aa);


请问怎么获取到xml节点（ManufacturerName）的值

求高手帮忙看一下 非常感谢