如何在節點集合之前和之後添加XML節點

Question

我正在尋找一種將開始時添加此節點「LoanSecondaryStatusDates」並將其相應的結束標記「LoanSecondaryStatusDates」添加到結尾的方法。我在SQL服務器中使用「FOR XML」生成了下面的內容，但無法弄清楚如何添加開始和結束標記。如果這可以使用「FOR XML」，那麼一個例子會很好，但是C＃會更好。謝謝！

目前：

<Loans> 
    <Loan> 
     <GUID></GUID> 
     <AgentCompanyName></AgentCompanyName> 
     <LoanSecondaryStatus> 
      <StatusName>Name</StatusName> 
      <StatusDate>Date</StatusDate> 
     </LoanSecondaryStatus> 
     <LoanSecondaryStatus> 
      <StatusName>Name</StatusName> 
      <StatusDate>Date</StatusDate> 
     </LoanSecondaryStatus> 
    </Loan> 
</Loans> 

最終結果應該是：

<Loans> 
    <Loan> 
    <GUID></GUID> 
    <AgentCompanyName></AgentCompanyName> 
    <LoanSecondaryStatusDates> 
     <LoanSecondaryStatus> 
      <StatusName>Name</StatusName> 
      <StatusDate>Date</StatusDate> 
    </LoanSecondaryStatus> 
     <LoanSecondaryStatus> 
      <StatusName>Name</StatusName> 
      <StatusDate>Date</StatusDate> 
     </LoanSecondaryStatus> 
    </LoanSecondaryStatusDates> 
</Loan> 
</Loans> 

FOR XML查詢

SELECT 
    [GUID] 
    ,[AgentCompanyName], 
    (
    SELECT 
    'Borrower Docs Sent/Req' as 'StatusName', 
    CASE WHEN t.BorrowerDocsSent IS NOT NULL THEN t.BorrowerDocsSent ELSE '' END as 'StatusDate' 

FROM Encompass_loanData as t 
WHERE t.[GUID] = E.[GUID] 
FOR XML PATH('LoanSecondaryStatus'), TYPE 
), 
    (
    SELECT 
    t.BorrowerCity as 'StatusName', 
    t.[GUID] as 'StatusDate' 

FROM Encompass_loanData as t 
WHERE t.[GUID] = E.[GUID] 
FOR XML PATH('LoanSecondaryStatus'), TYPE 
) 

From Encompass_loanData E 
FOR XML PATH ('Loan'), type, root('Loans') 

SQL小提琴：http://sqlfiddle.com/#!6/d672a/2/0

Answer 1

看看XElement類，您將可以輕鬆修改xml樹。

https://msdn.microsoft.com/en-us/library/system.xml.linq.xelement(v=vs.110).aspx

http://www.dotnetperls.com/xelement

Answer 2

您發佈沒有一個有效的根的XML。所以我加了<xml>作爲根。

這在C＃中也可以輕鬆完成。但是這是一種使用xpath來完成的方法。

<xml> 
    <LoanSecondaryStatus> 
    <StatusName>Name</StatusName> 
    <StatusDate>Date</StatusDate> 
    </LoanSecondaryStatus> 
    <LoanSecondaryStatus> 
    <StatusName>Name</StatusName> 
    <StatusDate>Date</StatusDate> 
    </LoanSecondaryStatus> 
    </xml> 

這裏是XSL。

<?xml version="1.0" encoding="UTF-8"?> 
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"> 
    <xsl:template match="/"> 
    <LoanSecondaryStatusDates>  
     <xsl:for-each select="xml/LoanSecondaryStatus"> 
     <LoanSecondaryStatus> 
      <StatusName> 
      <xsl:value-of select="StatusName"/> 
      </StatusName> 
      <StatusDate> 
      <xsl:value-of select="StatusDate"/> 
      </StatusDate> 
     </LoanSecondaryStatus> 
     </xsl:for-each>  
    </LoanSecondaryStatusDates> 
    </xsl:template> 
</xsl:stylesheet> 

輸出：

<?xml version="1.0" encoding="utf-8"?> 
<LoanSecondaryStatusDates> 
    <LoanSecondaryStatus> 
    <StatusName>Name</StatusName> 
    <StatusDate>Date</StatusDate> 
    </LoanSecondaryStatus> 
    <LoanSecondaryStatus> 
    <StatusName>Name</StatusName> 
    <StatusDate>Date</StatusDate> 
    </LoanSecondaryStatus> 
</LoanSecondaryStatusDates> 

更新與SQL查詢

SELECT 
    [GUID] 
    ,[AgentCompanyName], 
    (
    SELECT NULL, 
      (
       SELECT 
         'Borrower Docs Sent/Req' as 'StatusName', 
         CASE WHEN t.BorrowerDocsSent IS NOT NULL THEN t.BorrowerDocsSent ELSE '' END as 'StatusDate' 
       FROM Encompass_loanData as t 
       WHERE t.[GUID] = E.[GUID] 
       FOR XML PATH('LoanSecondaryStatus'), TYPE 
      ), 
      ( 
       SELECT NULL AS X 
       FOR XML PATH('LoanSecondaryStatusDates'), TYPE 
      ), 
      (
       SELECT 
         t.BorrowerCity as 'StatusName', 
         t.[GUID] as 'StatusDate' 
       FROM Encompass_loanData as t 
       WHERE t.[GUID] = E.[GUID] 
       FOR XML PATH('LoanSecondaryStatus'), TYPE 
      ), 
      NULL 
    FOR XML PATH('LoanSecondaryStatusDates'),TYPE 
    ) 
    FROM Encompass_loanData E 
    WHERE [LASTMODIFIED] >= '20160121' 
    FOR XML PATH ('Loan'), type, root('Loans') 

Answer 3

我能與此XSL

<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"> 
    <xsl:output indent="yes"/> 
    <xsl:strip-space elements="*"/> 

    <xsl:template match="@*|node()"> 
     <xsl:copy> 
      <xsl:apply-templates select="@*|node()"/> 
     </xsl:copy> 
    </xsl:template> 

    <xsl:template match="Loan"> 
     <xsl:copy> 
      <xsl:apply-templates select="@*|node()[not(self::LoanSecondaryStatus)]"/> 
      <LoanSecondaryStatusDates> 
       <xsl:apply-templates select="LoanSecondaryStatus"/> 
      </LoanSecondaryStatusDates> 
     </xsl:copy> 
    </xsl:template> 

</xsl:stylesheet>