Question

XML新手，无法在现有XML文件中添加新节点。

以下是XML文件的外观：

<?xml version="1.0" encoding="utf-8" standalone="yes"?>
<Users>
  <UserName-1>
    <Private-1>
      <PrivateFtpAccountId-1>11111</PrivateFtpAccountId-1>
      <PrivatePassword-1>test1</PrivatePassword-1>
    </Private-1>
    <Public-1>
      <PublicFtpAccountId-1>22222</PublicFtpAccountId-1>
      <PublicPassword-1>test2</PublicPassword-1>
    </Public-1>
  </UserName-1>
  <UserName-2>
    <Private-2>
      <PrivateFtpAccountId-2>33333</PrivateFtpAccountId-2>
      <PrivatePassword-2>test3</PrivatePassword-2>
    </Private-2>
    <Public-2>
      <PublicFtpAccountId-2>44444</PublicFtpAccountId-2>
      <PublicPassword-2>test4</PublicPassword-2>
    </Public-2>
  </UserName-2>
</Users>

我想在最后一次分组后添加这些内容。

<UserName-3>
    <Private-3>
      <PrivateFtpAccountId-3>55555</PrivateFtpAccountId-3>
      <PrivatePassword-3>test5</PrivatePassword-3>
    </Private-3>
    <Public-3>
      <PublicFtpAccountId-3>66666</PublicFtpAccountId-3>
      <PublicPassword-3>test6</PublicPassword-3>
    </Public-3>
</UserName-3>

在运行我的代码后，我生成了这个XML文件（我正在替换原文）：

<?xml version="1.0" encoding="utf-8" standalone="yes"?>
<Users>
  <UserName-1>
    <Private-1>
      <PrivateFtpAccountId-1>11111</PrivateFtpAccountId-1>
      <PrivatePassword-1>test1</PrivatePassword-1>
    </Private-1>
    <Public-1>
      <PublicFtpAccountId-1>22222</PublicFtpAccountId-1>
      <PublicPassword-1>test2</PublicPassword-1>
    </Public-1>
  </UserName-1>
  <UserName-2>
    <Private-2>
      <PrivateFtpAccountId-2>33333</PrivateFtpAccountId-2>
      <PrivatePassword-2>test3</PrivatePassword-2>
    </Private-2>
    <Public-2>
      <PublicFtpAccountId-2>44444</PublicFtpAccountId-2>
      <PublicPassword-2>test4</PublicPassword-2>
    </Public-2>
  </UserName-2>
  <UserName-3 />
  <Private-3>
    <PrivateFtpAccountId-3>55555</PrivateFtpAccountId-3>
    <PrivatePassword-3>test5</PrivatePassword-3>
  </Private-3>
  <Public-3>
    <PublicFtpAccountId-3>66666</PublicFtpAccountId-3>
    <PublicPassword-3>test6</PublicPassword-3>
  </Public-3>
</Users>

但有麻烦......

  Named <UserName-3 /> instead of <UserName-3>   <--- where is the / at the end coming from in the beginning tag?
  Did not indent properly
  No closing tag for this element

我在控制台应用中的代码：

    Dim strId As String
    Dim strPrivateFtpAcctId As String
    Dim strPrivatePassword As String
    Dim strPublicFtpAcctId As String
    Dim strPublicPassword As String

    strPrivateFtpAcctId = "55555"
    strPrivatePassword = "test5"
    strPublicFtpAcctId = "66666"
    strPublicPassword = "test6"
    strId = "3"

    ' Setting these variables above for now but they would actually be coming in as arguments and hence will be dynamically set at runtime.

    Dim xEle As XElement = XElement.Load("MyGoodXMLforadding.xml")
    xEle.Add(New XElement("UserName-" & strId))
    xEle.Add(New XElement("Private-" & strId, New XElement("PrivateFtpAccountId-" & strId, strPrivateFtpAcctId), New XElement("PrivatePassword-" & strId, srPrivatePassword)))
    xEle.Add(New XElement("Public-" & strId, New XElement("PublicFtpAccountId-" & strId, strPublicFtpAcctId), New XElement("PublicPassword-" & strId, "test6")))

    ' Save in place.
    xEle.Save("MyGoodXMLforadding.xml")

我甚至硬编码了这个值：

    xEle.Add(New XElement("UserName-3"))

我仍然得到同样的东西。

...问候丹

Answer 1

您应该将<Private-X>和<Public-X>添加到<UserName-X>而不是代码中的根元素（xEle）：

........
Dim username = New XElement("UserName-" & strId)
username.Add(New XElement("Private-" & strId, ....))
username.Add(New XElement("Public-" & strId, ....))
xEle.Add(username)
........

添加到现有XML文件中，我在开始元素标记的末尾放置了正斜杠

1 个答案: