将子节点添加到 XElement
Adding child nodes to an XElement
我正在尝试将对象附加到 XML 文件中。我目前遇到的问题是它本身附加了第一级的所有内容。我正在尝试将 列表作为父元素,并将列表项作为子元素 。
我试过的方法:我看到一些使用循环的帖子,但我无法将其与我的上下文和代码联系起来。
代码:
XDocument xDocument = XDocument.Load(@"C:\Users\hci\Desktop\Nazish\TangramsTool\TangramsTool\patterndata.xml");
XElement root = xDocument.Element("Patterns");
foreach (Pattern currentPattern in PatternDictionary.Values)
{
String filePath = currentPattern.Name.ToString();
IEnumerable<XElement> rows = root.Descendants("Pattern"); // Returns a collection of the descendant elements for this document or element, in document order.
XElement firstRow = rows.First(); // Returns the first element of a sequence.
if (currentPattern.PatternDistancesList.Count() == 9)
{
firstRow.AddBeforeSelf( //Adds the specified content immediately before this node.
new XElement("Pattern"),
new XElement("Name", filePath.Substring(64)),
new XElement("PatternDistancesList"),
new XElement("PatternDistance", currentPattern.PatternDistancesList[0].ToString()),
new XElement("PatternDistance", currentPattern.PatternDistancesList[1].ToString()),
}
}
当前 XML 文件:
<Pattern/>
<Name>match.jpg</Name>
<PatternDistancesList/>
<PatternDistance>278</PatternDistance>
<PatternDistance>380</PatternDistance>
我想要的最终结果:
<Pattern>
<Name>match.jpg</Name>
<PatternDistancesList>
<PatternDistance>278</PatternDistance>
<PatternDistance>380</PatternDistance>
</PatternDistancesList>
<Pattern/>
任何提示将不胜感激。我是 WPF 和 C# 的新手,所以仍在努力学习。
这应该可以解决问题:
firstRow.AddBeforeSelf(
new XElement("Pattern",
new XElement("Name", filePath.Substring(64)),
new XElement("PatternDistancesList",
new XElement("PatternDistance", currentPattern.PatternDistancesList[0].ToString()),
new XElement("PatternDistance", currentPattern.PatternDistancesList[1].ToString()))));
我正在尝试将对象附加到 XML 文件中。我目前遇到的问题是它本身附加了第一级的所有内容。我正在尝试将 列表作为父元素,并将列表项作为子元素 。
我试过的方法:我看到一些使用循环的帖子,但我无法将其与我的上下文和代码联系起来。
代码:
XDocument xDocument = XDocument.Load(@"C:\Users\hci\Desktop\Nazish\TangramsTool\TangramsTool\patterndata.xml");
XElement root = xDocument.Element("Patterns");
foreach (Pattern currentPattern in PatternDictionary.Values)
{
String filePath = currentPattern.Name.ToString();
IEnumerable<XElement> rows = root.Descendants("Pattern"); // Returns a collection of the descendant elements for this document or element, in document order.
XElement firstRow = rows.First(); // Returns the first element of a sequence.
if (currentPattern.PatternDistancesList.Count() == 9)
{
firstRow.AddBeforeSelf( //Adds the specified content immediately before this node.
new XElement("Pattern"),
new XElement("Name", filePath.Substring(64)),
new XElement("PatternDistancesList"),
new XElement("PatternDistance", currentPattern.PatternDistancesList[0].ToString()),
new XElement("PatternDistance", currentPattern.PatternDistancesList[1].ToString()),
}
}
当前 XML 文件:
<Pattern/>
<Name>match.jpg</Name>
<PatternDistancesList/>
<PatternDistance>278</PatternDistance>
<PatternDistance>380</PatternDistance>
我想要的最终结果:
<Pattern>
<Name>match.jpg</Name>
<PatternDistancesList>
<PatternDistance>278</PatternDistance>
<PatternDistance>380</PatternDistance>
</PatternDistancesList>
<Pattern/>
任何提示将不胜感激。我是 WPF 和 C# 的新手,所以仍在努力学习。
这应该可以解决问题:
firstRow.AddBeforeSelf(
new XElement("Pattern",
new XElement("Name", filePath.Substring(64)),
new XElement("PatternDistancesList",
new XElement("PatternDistance", currentPattern.PatternDistancesList[0].ToString()),
new XElement("PatternDistance", currentPattern.PatternDistancesList[1].ToString()))));