C＃ - 从wsdl生成xml请求

Question

我正在尝试使用http请求来使用wsdl Web服务。 示例：

Calculator web service

<wsdl:types>
<s:schema elementFormDefault="qualified" targetNamespace="http://tempuri.org/">
<s:element name="Add">
<s:complexType>
<s:sequence>
<s:element minOccurs="1" maxOccurs="1" name="intA" type="s:int"/>
<s:element minOccurs="1" maxOccurs="1" name="intB" type="s:int"/>
</s:sequence>
</s:complexType>
</s:element>
<s:element name="AddResponse">
<s:complexType>
<s:sequence>
<s:element minOccurs="1" maxOccurs="1" name="AddResult" type="s:int"/>
</s:sequence>
</s:complexType>
</s:element>
<s:element name="Subtract">
<s:complexType>
<s:sequence>
<s:element minOccurs="1" maxOccurs="1" name="intA" type="s:int"/>
<s:element minOccurs="1" maxOccurs="1" name="intB" type="s:int"/>
</s:sequence>
</s:complexType>
</s:element>
<s:element name="SubtractResponse">
<s:complexType>
<s:sequence>
<s:element minOccurs="1" maxOccurs="1" name="SubtractResult" type="s:int"/>
</s:sequence>
</s:complexType>
</s:element>
<s:element name="Multiply">
<s:complexType>
<s:sequence>
<s:element minOccurs="1" maxOccurs="1" name="intA" type="s:int"/>
<s:element minOccurs="1" maxOccurs="1" name="intB" type="s:int"/>
</s:sequence>
</s:complexType>
</s:element>
<s:element name="MultiplyResponse">
<s:complexType>
<s:sequence>
<s:element minOccurs="1" maxOccurs="1" name="MultiplyResult" type="s:int"/>
</s:sequence>
</s:complexType>
</s:element>
<s:element name="Divide">
<s:complexType>
<s:sequence>
<s:element minOccurs="1" maxOccurs="1" name="intA" type="s:int"/>
<s:element minOccurs="1" maxOccurs="1" name="intB" type="s:int"/>
</s:sequence>
</s:complexType>
</s:element>
<s:element name="DivideResponse">
<s:complexType>
<s:sequence>
<s:element minOccurs="1" maxOccurs="1" name="DivideResult" type="s:int"/>
</s:sequence>
</s:complexType>
</s:element>
</s:schema>
</wsdl:types>

     

这是Wsdl文件的一部分，其中包含方法的名称和参数定义。   方法添加的请求正文应该是这样的：

<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:tem="http://tempuri.org/">
   <soapenv:Header/>
   <soapenv:Body>
      <tem:Add>
         <tem:intA>?</tem:intA>
         <tem:intB>?</tem:intB>
      </tem:Add>
   </soapenv:Body>
</soapenv:Envelope>

问题：

如何以编程方式获取Web服务方法，名称和请求正文？