我正在尝试从我的xml文件中获取相关数据。因此,例如,我希望从场地元素中选择来自名为Roker Park的元素的所有数据。我如何只选择那些数据而不选择其余数据?这是我的xdocument
<Funrun>
<Venue>
<Name>Roker Park</Name>
<Runner>
<Charity>Cancer Research</Charity>
<Firstname>Roger</Firstname>
<Lastname>Malibu</Lastname>
<Sponsorship>550</Sponsorship>
</Runner>
<Runner>
<Charity>Arthritis UK</Charity>
<Firstname>Adam</Firstname>
<Lastname>White</Lastname>
<Sponsorship>340</Sponsorship>
</Runner>
<Venue>
<Name>Victoria Park</Name>
<Runner>
<Charity>Against Malaria Foundation</Charity>
<Firstname>Rob</Firstname>
<Lastname>Tate</Lastname>
<Sponsorship>850</Sponsorship>
</Runner>
<Runner>
<Charity>Fred Follows Foundation</Charity>
<Firstname>Peter</Firstname>
<Lastname>Jackson</Lastname>
<Sponsorship>500</Sponsorship>
</Runner>
</Venue>
</Funrun>
到目前为止,我所获得的代码选择了所有的场地数据,所以我得到了维多利亚公园以及Rokers,这是我到目前为止的代码:
List<string> VenueNames = new List<string>();
List<string> VenueDataList = new List<string>();
var doc = XDocument.Load("XMLFile1.xml");
var doc2 = XDocument.Load("XMLFile2.xml");
var doc3 = XDocument.Load("XMLFile3.xml");
var combinedunique = doc.Descendants("Venue")
.Union(doc2.Descendants("Venue"))
.Union(doc3.Descendants("Venue"));
foreach (XElement element in combinedunique.DescendantsAndSelf("Venue"))
{
VenueNames.Add(element.Element("Name").Value.ToString());
}
if (Convert.ToString(lstboxVenues.SelectedItem) == VenueNames.ElementAt(0))
{
foreach (XElement element in combinedunique.DescendantsAndSelf("Firstname"))
{
VenueDataList.Add(element.Value);
}
for (int i = 0; i < VenueDataList.Count; i++)
{
lstboxVenueData.Items.Add(VenueDataList.ElementAt(i));
}
}
答案 0 :(得分:2)
获取所有场地名称:
List<strgin> VenueNames = combindedunique.Select(v => (string)v.Element("Name")).ToList();
输出:
[
"Roker Park",
"Victoria Park"
]
按指定地点名称获取名字:
string venueName = "Victoria Park"; // name you want to search by
List<string> VenueDataList =
combindedunique.Where(v => (string)v.Element("Name") == venueName)
.Elements("Runner")
.Select(r => (string)r.Element("Firstname"))
.ToList();
输出:
[
"Rob",
"Peter"
]