Question

我看到了这篇优秀的帖子： http://sqldud.blogspot.com/2009/01/how-to-convert-csv-to-xml-using-c.html

我有一个csv文件，其中列标题位于csv的第一行。我还希望linq语句能够处理可变长度的列数。这样，如果添加更多列，我就不必更改代码。有没有办法做到这一点？如果元素是列标题的名称（第一行），那将是很好的。

Answer 1

您可以使用以下代码完成此操作

string inputFile = @"C:\Temp\somefile.csv";
string outputFile = @"C:\Temp\somefile_output.xml";

XDocument document = new XDocument();
document.Add(new XElement("root"));

using (StreamReader reader = new StreamReader(inputFile))
{
    string[] headerRow = reader.ReadLine().Split(',');
    while (!reader.EndOfStream)
    {
        string[] items = reader.ReadLine().Split(',');

        document.Root.Add(new XElement("row",
            from item in items.Select((val, idx) => new { val, idx })
            join header in headerRow.Select((val, idx) => new { val, idx })
            on item.idx equals header.idx
            select new XElement(header.val, item.val)));
    }
}

document.Save(outputFile);

哪个会转换包含以下内容的CSV文件

FirstField,SecondField,ThirdField,FourthField
1,2,3,4
5,6,7,8
9,10,11,12
13,14,15,16

进入XML文档

<?xml version="1.0" encoding="utf-8"?>
<root>
  <row>
    <FirstField>1</FirstField>
    <SecondField>2</SecondField>
    <ThirdField>3</ThirdField>
    <FourthField>4</FourthField>
  </row>
  <row>
    <FirstField>5</FirstField>
    <SecondField>6</SecondField>
    <ThirdField>7</ThirdField>
    <FourthField>8</FourthField>
  </row>
  <row>
    <FirstField>9</FirstField>
    <SecondField>10</SecondField>
    <ThirdField>11</ThirdField>
    <FourthField>12</FourthField>
  </row>
  <row>
    <FirstField>13</FirstField>
    <SecondField>14</SecondField>
    <ThirdField>15</ThirdField>
    <FourthField>16</FourthField>
  </row>
</root>

linq从csv创建xml

1 个答案: