xdt 通过子节点属性进行变换

Question

我正在尝试创建转换，该转换将根据此答案删除其子节点的节点，但没有成功

以便：

<?xml version="1.0"?>
<configuration>
  <runtime>
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
      <dependentAssembly>
        <assemblyIdentity name="System.Net.Http" publicKeyToken="B03F5F7F11D50A3A" culture="neutral"/>
        <bindingRedirect oldVersion="0.0.0.0-4.2.0.0" newVersion="4.2.0.0"/>
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="System.Net.Http1" publicKeyToken="B03F5F7F11D50A3A" culture="neutral"/>
        <bindingRedirect oldVersion="0.0.0.0-4.2.0.0" newVersion="4.2.0.0"/>
      </dependentAssembly>
    </assemblyBinding>
  </runtime>
</configuration>

将转变为：

<configuration>
  <runtime>
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">        
      <dependentAssembly>
        <assemblyIdentity name="System.Net.Http1" publicKeyToken="B03F5F7F11D50A3A" culture="neutral"/>
        <bindingRedirect oldVersion="0.0.0.0-4.2.0.0" newVersion="4.2.0.0"/>
      </dependentAssembly>
    </assemblyBinding>
  </runtime>
</configuration>

这就是我到目前为止所得到的：

<configuration xmlns:xdt="http://schemas.microsoft.com/XML-Document-Transform">
  <runtime>
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
      <dependentAssembly xdt:Transform="Remove" xdt:Locator="XPath(./assemblyIdentity[@name='System.Net.Http'])">
        <assemblyIdentity name="System.Net.Http" publicKeyToken="B03F5F7F11D50A3A" culture="neutral"/>
        <bindingRedirect oldVersion="0.0.0.0-4.2.0.0" newVersion="4.2.0.0"/>
      </dependentAssembly>
    </assemblyBinding>
  </runtime>
</configuration>

你可以使用这个在线变换模拟器

Answer 1

最需要注意的是，要删除的元素继承默认名称空间xmlns="urn:schemas-microsoft-com:asm.v1"。也就是说，您尝试的 XPath 将不会匹配任何内容，因为它没有考虑名称空间。

您可以忽略名称空间（不建议），也可以创建一个指向默认名称空间的前缀并在 XPath 中使用该前缀，例如：

<configuration xmlns:xdt="http://schemas.microsoft.com/XML-Document-Transform">
  <runtime>
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1" xmlns:pref="urn:schemas-microsoft-com:asm.v1">
      <dependentAssembly xdt:Transform="Remove" xdt:Locator="XPath(./pref:assemblyIdentity[@name='System.Net.Http']/..)">
      </dependentAssembly>
    </assemblyBinding>
  </runtime>
</configuration>

我更喜欢Condition按照链接答案中的建议使用：

<configuration xmlns:xdt="http://schemas.microsoft.com/XML-Document-Transform">
  <runtime>
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1" xmlns:pref="urn:schemas-microsoft-com:asm.v1">
      <dependentAssembly xdt:Transform="Remove" xdt:Locator="Condition(pref:assemblyIdentity/@name='System.Net.Http')">
      </dependentAssembly>
    </assemblyBinding>
  </runtime>
</configuration>