Class XmlDocumentExtensions

XmlDocument 扩展方法

Inheritance

Object

XmlDocumentExtensions

Inherited Members

Object.Equals(Object)

Object.Equals(Object, Object)

Object.GetHashCode()

Object.GetType()

Object.MemberwiseClone()

Object.ReferenceEquals(Object, Object)

Object.ToString()

Namespace: Lett.Extensions

Assembly: Lett.Extensions.dll

Syntax

public static class XmlDocumentExtensions

Methods

SelectNodesEnumerable(XmlDocument, String)

选择匹配 XPath 表达式的节点集合

匹配结果为空时，返回 null

Declaration

public static IEnumerable<XmlNode> SelectNodesEnumerable(this XmlDocument this, string xpath)

Parameters

Type	Name	Description
XmlDocument	this
String	xpath	xpath

Returns

Type	Description
IEnumerable<XmlNode>

Examples

var xmlDoc = new XmlDocument();
xmlDoc.Load("System.Xml.XmlDocument/test.xml");
var xpath = "/functional/dataSource/storeSource/columns/column";
var rs = xmlDoc.SelectNodesEnumerable(xpath);

// rs.ToList()[0]?.Attributes?.GetNamedItem("name").Value; == "FRowId"
// xmlDoc.SelectNodesEnumerable(null); // error throw ArgumentNullException
xmlDoc = null;
var rs = xmlDoc.SelectNodesEnumerable(xpath); // error error throw ArgumentNullException

Exceptions

Type	Condition
ArgumentNullException	this is null
ArgumentNullException	xpath is null