[英]Parsing XML, getting deep elements of specific name. (c#)
我想問你關於 XML 的解析,我嘗試了很多方法,但從來沒有得到我“想要/期望”的結果。 我想獲取特定名稱的所有元素(“packageReference”)和他的屬性/子項(元素)。 之后,我將收集並解析結果以獲取“包含”屬性的值和名稱為“版本”的元素/屬性的值
xml 的示例(我感興趣的元素在底部):
<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<PropertyGroup>
<AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
<IsWebBootstrapper>false</IsWebBootstrapper>
<PublishUrl>publish\</PublishUrl>
<Install>true</Install>
<UpdateIntervalUnits>Days</UpdateIntervalUnits>
</PropertyGroup>
<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|iPhoneSimulator' ">
<DebugSymbols>true</DebugSymbols>
<DebugType>full</DebugType>
<Optimize>false</Optimize>
</PropertyGroup>
<ItemGroup>
<Compile Include="Launch.cs" />
<Compile Include="Launch.designer.cs">
<DependentUpon>Launch.cs</DependentUpon>
</Compile>
<Compile Include="Main.cs" />
<None Include="Info.plist">
<SubType>Designer</SubType>
</None>
</ItemGroup>
<ItemGroup>
<Reference Include="System" />
<Reference Include="System.Core" />
</ItemGroup>
<ItemGroup>
<ProjectReference Include="..\..\Model\Project.Model.csproj">
<Project>{0511395F-513C-4F56-BF87-718CA49BB13B}</Project>
<Name>Project.Model</Name>
</ProjectReference>
</ItemGroup>
<ItemGroup>
<PackageReference Include="AutoMapper">
<Version>7.0.1</Version>
</PackageReference>
<PackageReference Include="GMImagePicker.Xamarin">
<Version>2.5.0</Version>
</PackageReference>
<PackageReference Include="IdentityModel">
<Version>4.1.0</Version>
</PackageReference>
<PackageReference Include="Microsoft.AppCenter">
<Version>4.3.0</Version>
</PackageReference>
<PackageReference Include="Microsoft.AppCenter.Analytics">
<Version>4.3.0</Version>
</PackageReference>
<PackageReference Include="Microsoft.AppCenter.Crashes">
<Version>4.3.0</Version>
</PackageReference>
<PackageReference Include="Package.Test" Version="1.1.21" />
</ItemGroup>
<ItemGroup />
</Project>
結果應該是:
AutoMapper;7.0.1
GMImagePicker.Xamarin;2.5.0
...
...
Package.Test;1.1.21
我的代碼:
var text = System.IO.File.ReadAllText(@"C:\MyGit\TestXML3.csproj");
var root = XElement.Parse(text);
var packageReferencesElements = root.Descendants("PackageReference");
var packageReferencesElementsAndSelf = root.DescendantsAndSelf("PackageReference");
var packageReferencesElementsOffElement = root.Elements().DescendantsAndSelf("PackageReference");
我嘗試了很多方法,但很少有人可以在代碼中看到。 如果有我感興趣的東西,我不想“進入”每個有子元素並在循環中檢查的元素。 一定有更好的辦法。 還有一點,我不確定我正在尋找的元素是否在 2 層或更深。
更新:當我知道它們有多深時,這段代碼正在努力獲取我的信息......但是當我不知道它應該有多深時?
var root = XElement.Parse(fileString);
var itemGroupsELements = root.Elements().Where(x => x.Name.LocalName == "ItemGroup");
var packageReferenceElements = itemGroupsELements.Elements().Where(x => x.Name.LocalName == "PackageReference");
foreach (var packageReference in packageReferenceElements)
{
string packageName = packageReference.Attribute("Include").Value;
string version = (packageReference.Attribute("Version") != null)
? packageReference.Attribute("Version").Value
: packageReference.Value;
_packageList.Add(new Package(){App = app, PackageName = packageName, PackageVersion = version, Project = projectName});
}
知道我做錯了什么嗎? 謝謝!
PackageReference
(與文件中的所有其他元素一樣)位於 XML 命名空間“http://schemas.microsoft.com/developer/msbuild/2003”中。 您必須在對Descendants
的調用中指定命名空間:
XNamespace build = "http://schemas.microsoft.com/developer/msbuild/2003";
var packageReferencesElements = root.Descendants(build + "PackageReference");
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