sqloptions:clientInterface 标头元素
后续版本的 Microsoft SQL Server 将删除该功能。请避免在新的开发工作中使用该功能，并着手修改当前还在使用该功能的应用程序。
sqloptions:clientInterface 登录选项使客户端能够指定用于登录的客户端界面，例如：
<SOAP-ENV:Header
xmlns:SOAP-ENV="https://schemas.xmlsoap.org/soap/envelope/"
xmlns:sqloptions="https://schemas.microsoft.com/sqlserver/2004/SOAP/Options">
<sqloptions:clientInterface SOAP-ENV:mustUnderstand="1" value="name of client interface to use for login" />
</SOAP-ENV:Header>
sqloptions:clientInterface 登录选项显示为 SOAP 标头。它由一个名为 sqloptions:clientInterface 的元素构成。该元素有一个必需的属性 value（它是一个文本值）。此选项给出了为登录设置的客户端界面。这将显示在 sys.dm_exec_sessions 兼容视图的 client_interface_name 列中。
在请求中只能显示一个 sqloptions:clientInterface 选项实例。该选项无法在响应中显示。多个选项实例将会生成错误。
服务器可能会限制 sqloptions:clientInterface 值可以识别的值的范围。如果客户端提交的值超出了允许的范围，则服务器将自行截断该值，截断方式不定。
如果使用 SOAP 会话，则必须在与 sqloptions:sqlsession initiate 属性相同的请求中显示此选项。如果在任何带有 sqloptions:sqlSession 标头但不包含 initiate 属性的请求中显示此选项，则将生成错误。
以下是 sqloptions:clientInterface 选项的架构片段：
<xs:element name="clientInterface" form="qualified">
<xs:annotation>
<xs:documentation>
Set the client interface for the login.
</xs:documentation>
</xs:annotation>
<xs:complexType>
<xs:attribute use="required" name="value" type="xs:string" form="unqualified">
<xs:annotation>
<xs:documentation>
The client interface to set for the login.
</xs:documentation>
</xs:annotation>
</xs:attribute>
</xs:complexType>
</xs:element>
示例
以下是在 SOAP 请求和响应消息中使用 sqloptions:clientInterface 标头的示例。
请求
<SOAP-ENV:Envelope xmlns:SOAP-ENV="https://schemas.xmlsoap.org/soap/envelope/"
xmlns:sql="https://schemas.microsoft.com/sqlserver/2004/SOAP"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:sqlparam="https://schemas.microsoft.com/sqlserver/2004/SOAP/types/SqlParameter"
xmlns:sqlsoaptypes="https://schemas.microsoft.com/sqlserver/2004/SOAP/types"
xmlns:sqloptions="https://schemas.microsoft.com/sqlserver/2004/SOAP/Options">
<SOAP-ENV:Header>
<sqloptions:clientInterface SOAP-ENV:mustUnderstand="1" value="ADO.NET SOAP 2.1" />
</SOAP-ENV:Header>
<SOAP-ENV:Body>
<sql:sqlbatch>
<sql:BatchCommands>
SELECT client_interface_name FROM sys.dm_exec_sessions
WHERE session_id=@@spid AND client_interface_name='ADO.NET SOAP 2.1'
</sql:BatchCommands>
</sql:sqlbatch>
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>
响应
<SOAP-ENV:Envelope xml:space="preserve"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:SOAP-ENV="https://schemas.xmlsoap.org/soap/envelope/"
xmlns:sql="https://schemas.microsoft.com/sqlserver/2004/SOAP"
xmlns:sqlsoaptypes="https://schemas.microsoft.com/sqlserver/2004/SOAP/types"
xmlns:sqlrowcount="https://schemas.microsoft.com/sqlserver/2004/SOAP/types/SqlRowCount"
xmlns:sqlmessage="https://schemas.microsoft.com/sqlserver/2004/SOAP/types/SqlMessage"
xmlns:sqlresultstream="https://schemas.microsoft.com/sqlserver/2004/SOAP/types/SqlResultStream"
xmlns:sqltransaction="https://schemas.microsoft.com/sqlserver/2004/SOAP/types/SqlTransaction"
xmlns:sqltypes="https://schemas.microsoft.com/sqlserver/2004/sqltypes">
<SOAP-ENV:Body>
<sql:sqlbatchResponse>
<sql:sqlbatchResult>
<sqlresultstream:SqlRowSet xsi:type="sqlsoaptypes:SqlRowSet">
<diffgr:diffgram xmlns:diffgr="urn:schemas-microsoft-com:xml-diffgram-v1">
<SqlRowSet1 xmlns="urn:schemas-microsoft-com:sql:SqlRowSet1">
<row>
<client_interface_name>ADO.NET SOAP 2.1</client_interface_name>
</row>
</SqlRowSet1>
</diffgr:diffgram>
</sqlresultstream:SqlRowSet>
<sqlresultstream:SqlRowCount xsi:type="sqlrowcount:SqlRowCount">
<sqlrowcount:Count>1</sqlrowcount:Count>
</sqlresultstream:SqlRowCount>
</sql:sqlbatchResult>
</sql:sqlbatchResponse>
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>