如何从xml中删除列表父节点？
Posted
技术标签:
【中文标题】如何从xml中删除列表父节点？【英文标题】：How to remove List parent node from xml? 【发布时间】：2021-06-14 21:09:15 【问题描述】：我已尝试使用以下代码从以下 XML 中删除 scheme-details1，但无法将其删除。
XmlActionResult xmlActionResult = new XmlActionResult(schememaster);
foreach (XElement element in xmlActionResult._document.Elements())
xmlActionResult._document.Elements("scheme-details1").Remove();
其中xmlActionResult._document 是XDocument。
以下是我的 XML 响应：-
<scheme-master>
<general-information>
<schemecode>XXXXX</schemecode>
<year>2020</year>
<month>04</month>
<requestid>0008052020</requestid>
</general-information>
<scheme-details1>
<scheme-details>
<location>
<district_code>503</district_code>
<district_name>Chittoor</district_name>
<state_code>28</state_code>
<state_name>Andhra pradesh</state_name>
</location>
<beneficiary-details>
<no_of_beneficiaries_normative_central_and_state_share>10000</no_of_beneficiaries_normative_central_and_state_share>
<no_of_additional_beneficiaries_supported_by_state>0</no_of_additional_beneficiaries_supported_by_state>
<total_no_of_beneficiaries>10000</total_no_of_beneficiaries>
<no_of_beneficiaries_record_digitized>10000</no_of_beneficiaries_record_digitized>
<no_of_authenticated_seeded_beneficiaries>10000</no_of_authenticated_seeded_beneficiaries>
<no_of_beneficiaries_whom_mobile_no_captured>10000</no_of_beneficiaries_whom_mobile_no_captured>
</beneficiary-details>
<fundtransfer-details>
<central_share_fund_transferred_cash>10000</central_share_fund_transferred_cash>
<normative_state_share_fund_transferred_cash>0</normative_state_share_fund_transferred_cash>
<additional_state_share_fund_transferred_cash>0</additional_state_share_fund_transferred_cash>
<state_share_fund_transferred_to_additional_beneficiaries_cash>0</state_share_fund_transferred_to_additional_beneficiaries_cash>
<total_fund_transferred_cash>10000</total_fund_transferred_cash>
<central_share_expenditure_incurred_inkind>0</central_share_expenditure_incurred_inkind>
<normative_state_share_expenditure_incurred_inkind>0</normative_state_share_expenditure_incurred_inkind>
<additional_state_share_expenditure_incurred_inkind>0</additional_state_share_expenditure_incurred_inkind>
<state_share_expenditure_incurred_to_additional_beneficiaries_inkind>0</state_share_expenditure_incurred_to_additional_beneficiaries_inkind>
<total_expenditure_incurred_inkind>0</total_expenditure_incurred_inkind>
</fundtransfer-details>
<transaction-details>
<total_no_transactions_electronic_modes_cash>10000</total_no_transactions_electronic_modes_cash>
<payment_electronic_modes_cash>10000</payment_electronic_modes_cash>
<total_no_transactions_other_modes_cash>0</total_no_transactions_other_modes_cash>
<payment_other_modes_cash>0</payment_other_modes_cash>
<quantity_transferred_inkind>0</quantity_transferred_inkind>
<no_of_authenticated_transactions_inkind>0</no_of_authenticated_transactions_inkind>
<dbt_expenditure_incurred_inkind>0</dbt_expenditure_incurred_inkind>
</transaction-details>
</scheme-details>
<scheme-details>
<location>
<district_code>504</district_code>
<district_name>Cuddapah (YSR Kadapa)</district_name>
<state_code>28</state_code>
<state_name>Andhra pradesh</state_name>
</location>
<beneficiary-details>
<no_of_beneficiaries_normative_central_and_state_share>10000</no_of_beneficiaries_normative_central_and_state_share>
<no_of_additional_beneficiaries_supported_by_state>0</no_of_additional_beneficiaries_supported_by_state>
<total_no_of_beneficiaries>10000</total_no_of_beneficiaries>
<no_of_beneficiaries_record_digitized>10000</no_of_beneficiaries_record_digitized>
<no_of_authenticated_seeded_beneficiaries>10000</no_of_authenticated_seeded_beneficiaries>
<no_of_beneficiaries_whom_mobile_no_captured>10000</no_of_beneficiaries_whom_mobile_no_captured>
</beneficiary-details>
<fundtransfer-details>
<central_share_fund_transferred_cash>10000</central_share_fund_transferred_cash>
<normative_state_share_fund_transferred_cash>0</normative_state_share_fund_transferred_cash>
<additional_state_share_fund_transferred_cash>0</additional_state_share_fund_transferred_cash>
<state_share_fund_transferred_to_additional_beneficiaries_cash>0</state_share_fund_transferred_to_additional_beneficiaries_cash>
<total_fund_transferred_cash>10000</total_fund_transferred_cash>
<central_share_expenditure_incurred_inkind>0</central_share_expenditure_incurred_inkind>
<normative_state_share_expenditure_incurred_inkind>0</normative_state_share_expenditure_incurred_inkind>
<additional_state_share_expenditure_incurred_inkind>0</additional_state_share_expenditure_incurred_inkind>
<state_share_expenditure_incurred_to_additional_beneficiaries_inkind>0</state_share_expenditure_incurred_to_additional_beneficiaries_inkind>
<total_expenditure_incurred_inkind>0</total_expenditure_incurred_inkind>
</fundtransfer-details>
<transaction-details>
<total_no_transactions_electronic_modes_cash>10000</total_no_transactions_electronic_modes_cash>
<payment_electronic_modes_cash>10000</payment_electronic_modes_cash>
<total_no_transactions_other_modes_cash>0</total_no_transactions_other_modes_cash>
<payment_other_modes_cash>0</payment_other_modes_cash>
<quantity_transferred_inkind>0</quantity_transferred_inkind>
<no_of_authenticated_transactions_inkind>0</no_of_authenticated_transactions_inkind>
<dbt_expenditure_incurred_inkind>0</dbt_expenditure_incurred_inkind>
</transaction-details>
</scheme-details>
<scheme-details>
<location>
<district_code>503</district_code>
<district_name>Chittoor</district_name>
<state_code>28</state_code>
<state_name>Andhra pradesh</state_name>
</location>
<beneficiary-details>
<no_of_beneficiaries_normative_central_and_state_share>10000</no_of_beneficiaries_normative_central_and_state_share>
<no_of_additional_beneficiaries_supported_by_state>0</no_of_additional_beneficiaries_supported_by_state>
<total_no_of_beneficiaries>10000</total_no_of_beneficiaries>
<no_of_beneficiaries_record_digitized>10000</no_of_beneficiaries_record_digitized>
<no_of_authenticated_seeded_beneficiaries>10000</no_of_authenticated_seeded_beneficiaries>
<no_of_beneficiaries_whom_mobile_no_captured>10000</no_of_beneficiaries_whom_mobile_no_captured>
</beneficiary-details>
<fundtransfer-details>
<central_share_fund_transferred_cash>10000</central_share_fund_transferred_cash>
<normative_state_share_fund_transferred_cash>0</normative_state_share_fund_transferred_cash>
<additional_state_share_fund_transferred_cash>0</additional_state_share_fund_transferred_cash>
<state_share_fund_transferred_to_additional_beneficiaries_cash>0</state_share_fund_transferred_to_additional_beneficiaries_cash>
<total_fund_transferred_cash>10000</total_fund_transferred_cash>
<central_share_expenditure_incurred_inkind>0</central_share_expenditure_incurred_inkind>
<normative_state_share_expenditure_incurred_inkind>0</normative_state_share_expenditure_incurred_inkind>
<additional_state_share_expenditure_incurred_inkind>0</additional_state_share_expenditure_incurred_inkind>
<state_share_expenditure_incurred_to_additional_beneficiaries_inkind>0</state_share_expenditure_incurred_to_additional_beneficiaries_inkind>
<total_expenditure_incurred_inkind>0</total_expenditure_incurred_inkind>
</fundtransfer-details>
<transaction-details>
<total_no_transactions_electronic_modes_cash>10000</total_no_transactions_electronic_modes_cash>
<payment_electronic_modes_cash>10000</payment_electronic_modes_cash>
<total_no_transactions_other_modes_cash>0</total_no_transactions_other_modes_cash>
<payment_other_modes_cash>0</payment_other_modes_cash>
<quantity_transferred_inkind>0</quantity_transferred_inkind>
<no_of_authenticated_transactions_inkind>0</no_of_authenticated_transactions_inkind>
<dbt_expenditure_incurred_inkind>0</dbt_expenditure_incurred_inkind>
</transaction-details>
</scheme-details>
<scheme-details>
<location>
<district_code>504</district_code>
<district_name>Cuddapah (YSR Kadapa)</district_name>
<state_code>28</state_code>
<state_name>Andhra pradesh</state_name>
</location>
<beneficiary-details>
<no_of_beneficiaries_normative_central_and_state_share>10000</no_of_beneficiaries_normative_central_and_state_share>
<no_of_additional_beneficiaries_supported_by_state>0</no_of_additional_beneficiaries_supported_by_state>
<total_no_of_beneficiaries>10000</total_no_of_beneficiaries>
<no_of_beneficiaries_record_digitized>10000</no_of_beneficiaries_record_digitized>
<no_of_authenticated_seeded_beneficiaries>10000</no_of_authenticated_seeded_beneficiaries>
<no_of_beneficiaries_whom_mobile_no_captured>10000</no_of_beneficiaries_whom_mobile_no_captured>
</beneficiary-details>
<fundtransfer-details>
<central_share_fund_transferred_cash>10000</central_share_fund_transferred_cash>
<normative_state_share_fund_transferred_cash>0</normative_state_share_fund_transferred_cash>
<additional_state_share_fund_transferred_cash>0</additional_state_share_fund_transferred_cash>
<state_share_fund_transferred_to_additional_beneficiaries_cash>0</state_share_fund_transferred_to_additional_beneficiaries_cash>
<total_fund_transferred_cash>10000</total_fund_transferred_cash>
<central_share_expenditure_incurred_inkind>0</central_share_expenditure_incurred_inkind>
<normative_state_share_expenditure_incurred_inkind>0</normative_state_share_expenditure_incurred_inkind>
<additional_state_share_expenditure_incurred_inkind>0</additional_state_share_expenditure_incurred_inkind>
<state_share_expenditure_incurred_to_additional_beneficiaries_inkind>0</state_share_expenditure_incurred_to_additional_beneficiaries_inkind>
<total_expenditure_incurred_inkind>0</total_expenditure_incurred_inkind>
</fundtransfer-details>
<transaction-details>
<total_no_transactions_electronic_modes_cash>10000</total_no_transactions_electronic_modes_cash>
<payment_electronic_modes_cash>10000</payment_electronic_modes_cash>
<total_no_transactions_other_modes_cash>0</total_no_transactions_other_modes_cash>
<payment_other_modes_cash>0</payment_other_modes_cash>
<quantity_transferred_inkind>0</quantity_transferred_inkind>
<no_of_authenticated_transactions_inkind>0</no_of_authenticated_transactions_inkind>
<dbt_expenditure_incurred_inkind>0</dbt_expenditure_incurred_inkind>
</transaction-details>
</scheme-details>
</scheme-details1>
</scheme-master>
【问题讨论】：
请更新您的问题，并添加所需的输出 XML。 在循环中你需要做element.Elements("scheme-details1").Remove();。或者消除循环并执行xmlActionResult._document.Root.Elements("scheme-details1").Remove();。见dotnetfiddle.net/0vZMoK
当你有一个列表时，你必须从末尾开始并朝着开头移动： ListxmlActionResult1，但随后尝试从xmlActionResult 的文档中删除节点。假设这是问题中的错字，我编辑了变量名称以保持一致。如果您的代码中确实有两个不同的XmlActionResult 对象，这也可以解释您的问题——您可能正在从错误的对象中删除节点。
【参考方案1】：
您正在循环通过 XDocument 的 XElement element 根节点，然后尝试从文档本身中删除 <scheme-details1> 节点。相反，将它们从当前的element 中删除：
foreach (var element in xmlActionResult._document.Elements())
//xmlActionResult._document.Elements("scheme-details1").Remove(); // FIXED
element.Elements("scheme-details1").Remove();
或者，由于格式良好的 XML 文档总是只有一个 root element，您可以消除根元素的循环，然后这样做：
xmlActionResult._document.Root.Elements("scheme-details1").Remove();
演示here.
更新
Remove() 从父节点中删除节点集合及其所有后代。如果您想删除<scheme-details1> 节点并将其所有子节点冒泡到其父节点，您可以创建以下扩展方法：
public static class XNodeExtensions
public static void RemoveAndMoveChildrenUp (this IEnumerable<XNode> source)
foreach (var node in source.ToList())
node.RemoveAndMoveChildrenOfTypeUp<XNode>();
public static void RemoveAndMoveChildElementsUp (this IEnumerable<XNode> source)
foreach (var node in source.ToList())
node.RemoveAndMoveChildrenOfTypeUp<XElement>();
public static void RemoveAndMoveChildrenOfTypeUp<TChild>(this XNode node) where TChild : XNode
var parent = node.Parent;
if (node is XContainer container)
for (XNode child = container.FirstNode, nextChild = child?.NextNode; child != null; child = nextChild, nextChild = child?.NextNode)
if (child is TChild)
child.Remove(); // Remove the child first to prevent cloning when added to the parent
parent.Add(child);
node.Remove();
然后做：
xmlActionResult._document.Root.Elements("scheme-details1").RemoveAndMoveChildrenUp();
或者，如果<scheme-details1> 是mixed content 节点并且您只想冒泡子元素，请使用RemoveAndMoveChildElementsUp()。
演示小提琴#2 here.
【讨论】：
也尝试过同样的方法，它会返回 Void。我通过这样做得到了一个解决方案，我只是用空替换了那个标签。字符串 xml = doc.ToString(); xml = xml.Replace("上面发布的答案也有效，并且通过替换 XML 中的标签，得到的答案也适用于我。
XDocument doc = new XDocument();
using (var writer = doc.CreateWriter())
// write xml into the writer
var serializer = new DataContractSerializer(obj.GetType());
serializer.WriteObject(writer, obj);
string xml = doc.ToString();
xml = xml.Replace("<scheme-details1>", "");
xml = xml.Replace("</scheme-details1>", "");
doc = XDocument.Parse(xml);
【讨论】：
以上是关于如何从xml中删除列表父节点？的主要内容，如果未能解决你的问题，请参考以下文章