如何打开与WinRT的一个打包文件 [英] How to open a packaged file with WinRT

问题描述

我试图弄清楚如何端口解析XML文件的WinRT一些的.Net代码。到目前为止，与的给定的System.Uri不能转换成Windows.Foundation.Uri ，我有下面的代码。不过，我立即得到卡住后，我创建开放的：

I am trying to figure out how to port some .Net code that parsed an xml file to WinRT. So far, with the help of The given System.Uri cannot be converted into a Windows.Foundation.Uri, I have the below code. Still, I get stuck immediately after I create the Uri:

    static readonly Uri ResourcesBase = new Uri(@"ms-resource://MyAssembly/"); 
    public override async void Load()
    {
        Uri uri = new Uri(ResourcesBase, filePath); // filePath = "Data//world.xml";
        XmlLoadSettings settings = new XmlLoadSettings() { ValidateOnParse = false };

        XmlDocument xmlDoc = await XmlDocument.LoadFromUriAsync(uri, settings);

        foreach (IXmlNode xmlNode in xmlDoc.ChildNodes)
        {
            ProcessNode(xmlNode);
        }
    }

我得到一个未处理的异常，当我尝试调用的XmlDocument .LoadFromUriAsyn（URI）：

I get an unhandled exception when I try to call XmlDocument.LoadFromUriAsyn(uri):

ArgumentException的是未处理的用户代码 - 值没有在预期范围内。

ArgumentException was unhandled by the user code - Value does not fall within the expected range.

任何人都觉得一切是WinRT的10倍更难

Anyone else feel like everything is 10 times harder with WinRT?

编辑：

我曾尝试以下所有字符串，并得到确切的同样的错误：

I have tried all the following strings, and get the exact same error:

  Uri uri = new Uri("ms-resource://MyAssembly//" + filePath);
  Uri uri = new Uri("ms-resource://MyAssembly/" + filePath);
  Uri uri = new Uri("d:\\projects\\crystal\\" + filePath); // A valid absolute path

项目设置：

项目

• 属性


• 参考


• 资产


• 数据
  
  
  
  • world.xml
  
  
  • Properties
  • References
  • Assets
  • Data
    • world.xml

    在代码：

      filePath = "Data\\world.xml";
    

    
    
    

    我也试图把XML文件下assset\data，只是资产。似乎没有什么有所作为。

    I have also tried putting the xml file under assset\data, and just assets. Nothing seems to make a difference.

    另外，我在XML设置为内容的生成操作。那是对的吗？ 。唯一的其他东西我可以想像，这将是为嵌入的资源，但我怀疑它

    Another thing, I have the Build Action of the xml set to "Content". Is that correct? The only other thing I could imagine that it would be is "Embedded Resource" but I doubt it.

    全部异常详细信息：

    System.ArgumentException是由用户代码

    System.ArgumentException was unhandled by user code

    HResult的= -2147024809

    HResult=-2147024809

    消息=值未处理。没有在预期范围之内。

    Message=Value does not fall within the expected range.

    来源= Windows.Data.Xml.Dom

    Source=Windows.Data.Xml.Dom

    堆栈跟踪：

    在Windows.Data.Xml.Dom.XmlDocument.LoadFromUriAsync（URI URI，XmlLoadSettings loadSettings）

    at Windows.Data.Xml.Dom.XmlDocument.LoadFromUriAsync(Uri uri, XmlLoadSettings loadSettings)

    在水晶.IO.File.XmlFileSerializer.d__1.MoveNext（）在d：\Projects\Crystal\library\IO\File\XmlFileSerializer.cs：第32行

    at Crystal.IO.File.XmlFileSerializer.d__1.MoveNext() in d:\Projects\Crystal\library\IO\File\XmlFileSerializer.cs:line 32

    的InnerException：

    InnerException:

    下载最小的例子可能瑞普问题： test_xml.zip

    Download the smallest example possible to repro the issue: test_xml.zip

    推荐答案

    我终于想通了我看着的Windows运行XML数据API示例。

    I finally figured it out after I looked at Windows Runtime Xml data API sample.

        public override async Load()
        {
            var file = await GetPackagedFile("assets", "world.xml");
            LoadXml(file);
        }
    
        private async void LoadXml(StorageFile file)
        {
            XmlLoadSettings settings = new XmlLoadSettings() { ValidateOnParse = false };
            XmlDocument xmlDoc = await XmlDocument.LoadFromFileAsync(file, settings);
    
            foreach (IXmlNode xmlNode in xmlDoc.ChildNodes)
            {
                //ProcessNode(xmlNode);
            }
        }
    
        private async Task<StorageFile> GetPackagedFile(string folderName, string fileName)
        {
            StorageFolder installFolder = Windows.ApplicationModel.Package.Current.InstalledLocation;
    
            if (folderName != null)
            {
                StorageFolder subFolder = await installFolder.GetFolderAsync(folderName);
                return await subFolder.GetFileAsync(fileName);
            }
            else
            {
                return await installFolder.GetFileAsync(fileName);
            }
        }
    }
    

    这篇关于如何打开与WinRT的一个打包文件的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！