c# - 从xml中分层获取数据

Question

我有这个 xml:

<folders>
  <Folder>
    <Folder_name>test</Folder_name>
    <Number_of_files>2</Number_of_files>
    <File>
      <File_name>DTLite4461-0327</File_name>
      <File_size_in_bytes>14682176</File_size_in_bytes>
    </File>
    <File>
      <File_name>TeamViewer_Setup-ioh</File_name>
      <File_size_in_bytes>11057224</File_size_in_bytes>
    </File>
  </Folder>
  <Folder>
    <Folder_name>podFolder1</Folder_name>
    <Number_of_files>1</Number_of_files>
    <File>
      <File_name>npp.6.9.1.Installer</File_name>
      <File_size_in_bytes>4203840</File_size_in_bytes>
    </File>
  </Folder>
  <Folder>
    <Folder_name>podFolder2</Folder_name>
    <Number_of_files>1</Number_of_files>
    <File>
      <File_name>d-470sqe</File_name>
      <File_size_in_bytes>2582112256</File_size_in_bytes>
    </File>
  </Folder>
</folders>

我想在 GridView 中打印它，该 View 有 3 列:文件名、文件大小和父文件夹名称。

我可以从所有节点获取所有数据，但无法将文件名连接到适当的父文件夹名称和适当的大小

我尝试过这样的:

XmlDocument doc = new XmlDocument();
doc.Load(xPath);

XmlNodeList folderNodes = doc.SelectNodes(@"/folders/Folder");
int brojac = 0;

foreach (XmlNode folderNode in folderNodes)
{
    XmlNodeList fileNameNodes = doc.SelectNodes(@"/folders/Folder/File/File_name");
    XmlNodeList fileSizeNodes = doc.SelectNodes(@"/folders/Folder/File/Size");

    foreach (XmlNode fileName in fileNameNodes)
    {
        dgvXML.Rows.Add(fileName.InnerText, folderNode.InnerText, "");
    }
}

使用此代码，它可以正确打印出父文件夹名称，但每次都会获取所有文件，但我无法将其连接到文件大小。

我想在 GridView 中得到类似的东西:

> File name ----------- Parent folder name ------ File size
> DTLite4461-0327       test                      14682176
> TeamViewer_Setup-ioh  test                      11057224
> npp.6.9.1.Installer   podFolder1                4203840       
> d-470sqe              podFolder2                2582112256

执行此操作的最佳方法是什么？

Answer 1

既然你问了最好的方法来做到这一点，我建议使用 paste special功能将使您的生活变得异常轻松。

基本上，您复制 xml 示例，使用特殊粘贴创建一个类，并使用 xmlserializer 反序列化一个对象或对象数组。这一切都在 msdn 链接上得到了完美的解释。你一定会喜欢它的。

编辑，因为您遇到问题:

要反序列化，请执行以下操作:

using (XmlSerializer serializer = new XmlSerializer(typeof(folders)))
{
    StreamReader myReader = new StreamReader(path_to_xml_goes_here);
    folders foldersObject = (folders)serializer.Deserialize(myReader);
    // Do stuff with the objects here
}

XML 类:

/// <remarks/>
[System.Xml.Serialization.XmlTypeAttribute(AnonymousType = true)]
[System.Xml.Serialization.XmlRootAttribute(Namespace = "", IsNullable = false)]
public partial class folders
{

    private foldersFolder[] folderField;

    /// <remarks/>
    [System.Xml.Serialization.XmlElementAttribute("Folder")]
    public foldersFolder[] Folder
    {
        get
        {
            return this.folderField;
        }
        set
        {
            this.folderField = value;
        }
    }
}

/// <remarks/>
[System.Xml.Serialization.XmlTypeAttribute(AnonymousType = true)]
public partial class foldersFolder
{

    private string folder_nameField;

    private byte number_of_filesField;

    private foldersFolderFile[] fileField;

    /// <remarks/>
    public string Folder_name
    {
        get
        {
            return this.folder_nameField;
        }
        set
        {
            this.folder_nameField = value;
        }
    }

    /// <remarks/>
    public byte Number_of_files
    {
        get
        {
            return this.number_of_filesField;
        }
        set
        {
            this.number_of_filesField = value;
        }
    }

    /// <remarks/>
    [System.Xml.Serialization.XmlElementAttribute("File")]
    public foldersFolderFile[] File
    {
        get
        {
            return this.fileField;
        }
        set
        {
            this.fileField = value;
        }
    }
}

/// <remarks/>
[System.Xml.Serialization.XmlTypeAttribute(AnonymousType = true)]
public partial class foldersFolderFile
{

    private string file_nameField;

    private uint file_size_in_bytesField;

    /// <remarks/>
    public string File_name
    {
        get
        {
            return this.file_nameField;
        }
        set
        {
            this.file_nameField = value;
        }
    }

    /// <remarks/>
    public uint File_size_in_bytes
    {
        get
        {
            return this.file_size_in_bytesField;
        }
        set
        {
            this.file_size_in_bytesField = value;
        }
    }
}