Question

我遇到的问题是读取XML文件并拉出多个PIECE_WGT。想要拉取属性以及元素值

以下是我遇到以下问题的地方

Pieces = el.Element("PIECE_WGT").Attribute("CNT").Value,
Weight = el.Element("PIECE_WGT").Value

以下是我的所有代码

class FILELOGElements
{
    public string FileNo { get; set; }
    public string TotPieces { get; set; }
    public string TotWeight { get; set; }
    public string PiecesUsed { get; set; }
    public double Pieces { get; set; }
    public double Weight { get; set; }
}

private IEnumerable<FILELOGElements> FileInfo(XElement doc, string FileNo)
{
    IEnumerable <FILELOGElements> Info = 
        from el in doc.Elements("FILE_NO")
        where el.Attribute("ID").Value.ToUpper() == FileNo
        select new FILELOGElements
        {
            FileNo = el.Attribute("ID").Value.ToUpper(),
            TotPieces = el.Element("TOTAL_PIECES").Value.ToUpper(),
            TotWeight = el.Element("TOTAL_WEIGHT").Value.ToUpper(),
            PiecesUsed = el.Element("PIECES_USED").Value.ToUpper(),
            Pieces = el.Element("PIECE_WGT").Attribute("CNT").Value,
            Weight = el.Element("PIECE_WGT").Value
        };

    return Info;
}

以下是XML文档的设置方法：

<INFO>
  <FILE_NO ID="2150510370">
    <TOTAL_PIECES>2</TOTAL_PIECES>
    <TOTAL_WEIGHT>500</TOTAL_WEIGHT>
    <PIECES_USED>2</PIECES_USED>
    <PIECE_WGT CNT="1">100</PIECE_WGT>
    <PIECE_WGT CNT="2">125</PIECE_WGT>
  </FILE_NO>
  <FILE_NO ID="2150510371">
    <TOTAL_PIECES>10</TOTAL_PIECES>
    <TOTAL_WEIGHT>1000</TOTAL_WEIGHT>
    <PIECES_USED>3</PIECES_USED>
    <PIECE_WGT CNT="1">100</PIECE_WGT>
    <PIECE_WGT CNT="2">125</PIECE_WGT>
    <PIECE_WGT CNT="3">275</PIECE_WGT>
  </FILE_NO>
</INFO>

Answer 1

不确定这是否是正确的方法，但这是我设法让它工作的方式

我将Pieces and Weights转换为List，以便我可以为每个文件编号提取所有PIECE_WGT属性和元素

    private IEnumerable<FILELOGElements> FileInfo(XElement doc, string FileNo)
    {

        IEnumerable <FILELOGElements> Info = from el in doc.Elements("FILE_NO")
                                          where el.Attribute("ID").Value.ToUpper() == FileNo
                                          select new FILELOGElements
                                          {
                                              FileNo = el.Attribute("ID").Value.ToUpper(),
                                              TotPieces = Convert.ToDouble(el.Element("TOTAL_PIECES").Value),
                                              TotWeight = Convert.ToDouble(el.Element("TOTAL_WEIGHT").Value),
                                              PiecesUsed = Convert.ToDouble(el.Element("PIECES_USED").Value),
                                              Pieces = el.Elements("PIECE_WGT").Attributes("CNT").Select(a => Convert.ToDouble(a.Value)).ToList(),
                                              Weight = el.Elements("PIECE_WGT").Select(a => Convert.ToDouble(a.Value)).ToList()
                                          };



        return Info;
    }

}

class FILELOGElements
{
    public string FileNo { get; set; }
    public double TotPieces { get; set; }
    public double TotWeight { get; set; }
    public double PiecesUsed { get; set; }
    public List<double> Pieces { get; set; }
    public List<double> Weight { get; set; }


}

使用Linq从XML聚合Multiples

1 个答案: