我正在尝试使用LINQ将 XML中的子子值放入字典集合中.我已经使用与XML相同结构的列表和自定义集合完成了此操作,但无法搜索特定值.如果我知道parentName,childName和subChildName,我希望能够找
key = "parentNameValue1.childNameValue1.subchildNameValue1.subChildProperty1" value = 0
我可以连接字符串以形成一个特定的键,并搜索该键以返回一个值.
XML:
<root> <parent> <parentName>parentNameValue1</parentName> <child> <childName>childNameValue1</childName> <subchild> <subchildName>subchildNameValue1</subchildName> <subChildProperty1>0</subChildProperty1> <subChildProperty2>5</subChildProperty2> </subchild> <subchild> <subchildName>subchildNameValue2</subchildName> <subChildProperty1>0</subChildProperty1> <subChildProperty2>10</subChildProperty2> </subchild> </child> </parent> <root>
这个问题有点类似于" rel="nofollow" target="_blank">this question here,但我无法让代码在VB中运行我的应用程序.
我是SO(和VB)的新手,所以如果我的礼仪不正确,我会道歉.
有了VB.NET的优秀XML支持,这很容易做到:Imports System.Xml.Linq ... Sub Main() Dim xml = _ <root> <parent> <parentName>parentNameValue1</parentName> <child> <childName>childNameValue1</childName> <subchild> <subchildName>subchildNameValue1</subchildName> <subChildProperty1>0</subChildProperty1> <subChildProperty2>5</subChildProperty2> </subchild> <subchild> <subchildName>subchildNameValue2</subchildName> <subChildProperty1>0</subChildProperty1> <subChildProperty2>10</subChildProperty2> </subchild> </child> </parent> </root> ' Alternatively, load XML from a file ' Dim xml = XDocument.Load(fileName) Dim dict As New Dictionary(Of String, Integer) ' Extract the properties For Each parent In xml.<parent> Dim parentName = parent.<parentName>.Value For Each child In parent.<child> Dim childName = child.<childName>.Value For Each subchild In child.<subchild> Dim subchildName = subchild.<subchildName>.Value For Each prop In subchild.Elements.Where(Function(e) e.Name <> "subchildName") dict.Add(String.Format("{0}.{1}.{2}.{3}", parentName, childName, subchildName, prop.Name), _ Integer.Parse(prop.Value)) Next Next Next Next ' Print the values, to show that we've done a good job For Each kv In dict Console.WriteLine("{0}: {1}", kv.Key, kv.Value) Next Console.ReadLine() End Sub
(显然,代码假定Option Strict On和Option Infer On.)