以下是xml文档
<al>
<hfs>
<hf id="1">A2</hf> ##1) based these hf nodes id attributes
<hf id="2">A1</hf>
</hfs>
<psteps>
<pstep>
<name>sharepoint</name>
<lze>
<lz hid="1"> ##1) in Lze node need to create same number lz nodes
## based previously quoted hf node id attribute
<ps>
<p>
<text>ziel</text>
<inhalt>ttt</inhalt>
</p>
<p>
<text></text>
<inhalt></inhalt>
</p>
</ps>
</lz>
<lz hid="2">
<ps>
<p>
<text></text>
<inhalt></inhalt> ##2) lz node with hid = "2" has 2 p nodes
</p>
<p>
<text></text>
<inhalt></inhalt>
</p>
</ps>
</lz>
</lze>
</pstep>
<pstep>
<name>aspnet</name>
<lze>
<lz hid="2"> ## 1)in Lze node need to create same number lz nodes
## based previously quoted hf node id attribute
<ps>
<p>
<text>ziel</text> ## 2)lz node with hid = "2" has 1 p node so need
<inhalt>ttt</inhalt> ## node to create 1 more as previously
</p> ## lz node
</ps>
</lz>
</lze>
</pstep>
</psteps>
</al>
我需要在这里做两件事：
基于hfs子hf节点我需要在hfs sibling中创建psteps后代lze节点相同数量的具有相同属性值的lz节点
接下来必须找到具有相同属性值的lz节点中的p个节点的最大数量，并在具有相同属性值的其余lz节点中创建相同数量的p个节点。
以下是我想要制作的示例xml：
<al>
<hfs>
<hf id="1">A2</hf>
<hf id="2">A1</hf>
</hfs>
<psteps>
<pstep>
<name>sharepoint</name>
<lze>
<lz hid="1">
<ps>
<p>
<text>ziel</text>
<inhalt>ttt</inhalt>
</p>
<p>
<text></text>
<inhalt></inhalt>
</p>
</ps>
</lz>
<lz hid="2">
<ps>
<p>
<text></text>
<inhalt></inhalt>
</p>
<p>
<text></text>
<inhalt></inhalt>
</p>
</ps>
</lz>
</lze>
</pstep>
<pstep>
<name>aspnet</name>
<lze>
<lz hid="2">
<ps>
<p>
<text>ziel</text>
<inhalt>ttt</inhalt>
</p>
<p>
<text></text>
<inhalt></inhalt>
</p>
</ps>
</lz>
<lz hid="1">
<ps>
<p>
<text></text>
<inhalt></inhalt>
</p>
<p>
<text></text>
<inhalt></inhalt>
</p>
</ps>
</lz>
</lze>
</pstep>
</psteps>
<al>
我使用以下代码来创建缺少的<lz>个节点。我需要创建<p>个节点，我无法从每个<p>节点中选择<lz>个节点。
var doc = XDocument.Load("XmlFile1.xml");
var hfIds = (from hf in doc.Descendants("hf")
from attr in hf.Attributes("Id")
select attr.Value).Distinct(StringComparer.Ordinal).ToList();
var lze2 = doc.Descendants("lze")
.Select(lze => new {
element = lze,
hfids = lze.Descendants("lz").Attributes("hid"),
paras = (from lz in lze.Elements("lz")
from ps in lz.Elements("ps")
from p in ps.Elements("p")
select p).ToList()
});
foreach (var c in lze2) {
foreach (var hfid in hfIds.Where(hfid => !c.hfids.Any(attr => hfid.Equals(attr.Value)))) {
c.element.Add(new XElement("lz", new XAttribute("hfid", hfid),
new XElement("ps",
new XElement("p"),
new XElement("Text"),
new XElement("Content"))));
break;
}
}
感谢您的帮助
答案 0 :(得分：0)
这是你想要做的吗？
var doc = XDocument.Load("XmlFile1.xml");
var hfIds = (from hf in doc.Descendants("hf").Attributes("id")
select hf.Value).Distinct(StringComparer.Ordinal).ToList();
bool addFlag = true;
foreach (var c in doc.Descendants("lze"))
{
foreach (var hfid in hfIds)
{
addFlag = true;
foreach (var attr in c.Descendants("lz").Attributes("hid"))
{
if (hfid == attr.Value)
{
addFlag = false;
break;
}
}
if (addFlag)
{
c.Add(new XElement("lz", new XAttribute("hid", hfid),
new XElement("ps",
new XElement("p"),
new XElement("Text"),
new XElement("Content"))));
}
}
}
// Adding the p elements to the above added lz elements
var distinctPIds = (from hf in doc.Descendants("lz").Descendants("p")
select hf).GroupBy(x => x.Value).Select(x => x.First()); ;
addFlag = true;
XElement a = null;
foreach (var c in doc.Descendants("lz").Descendants("ps"))
{
foreach (var c3 in distinctPIds)
{
addFlag = true;
foreach (var c2 in c.Descendants("p"))
{
if (XNode.DeepEquals(c2, c3))
{
addFlag = false;
break;
}
a = c3;
}
if (addFlag)
c.Add(a);
}
}
}
代码可能格式不正确。保持更加口头的理解。
答案 1 :(得分：0)
if (xmlDoc.Descendants("a").Count() > 0)
{
var afIds = (from af in xmlDoc.Descendants("af")
from attribute in af.Attributes("Id")
select attribute.Value).Distinct(StringComparer.Ordinal).ToList();
var loContainers = xmlDoc.Descendants("a").Select(a =>
new {element = a, afids = a.Descendants("x").Attributes("afId") });
foreach (var container in loContainers)
{
foreach (var afId in afIds.Where(afId => !container.afids.Any(attr => afId.Equals(attr.Value))))
{
container.element.Add(new XElement("x", new XAttribute("afId", afId),
new XElement("Paragraphs",
new XElement("Paragraph",
new XAttribute("AllowSelection", "false"),
new XElement("Text"),
new XElement("Content")))));
break;
}
}
foreach (var afId in afIds)
{
var distinctlearningObjs = from x in xmlDoc.Descendants("x").Where(
x => (string)x.Attribute("afId").Value == afId).GroupBy(
x => x.Attribute("afId").Value)
select new { MaxParaCount = x.Max(y => y.Descendants("Paragraph").Count ()) };
foreach (var x in distinctlearningObjs)
{
var docLos = from doclo in xmlDoc.Descendants("x").Where(
x => (string)x.Attribute("afId").Value == afId)
select new { doclo, element = doclo.Element("Paragraphs"),
count = doclo.Descendants("Paragraph").Count()
};
foreach (var docLo in docLos)
{
var paraCount = docLo.count;
var maxCount = x.MaxParaCount;
for (var i = paraCount; i < maxCount; i++)
{
docLo.element.Add(new XElement("Paragraph",
new XAttribute("AllowSelection", "false"),
new XElement("Text"),
new XElement("Content")));
}
}
}
}
}