[DevExpress] obtains a set of sub-nodes in the visible area under a node. devexpress is visible.

[DevExpress] obtains a set of sub-nodes in the visible area under a node. devexpress is visible.

Key code:

/// <Summary> /// recursion down the TreeListNode node /// </summary> /// <param name = "node"> the node to be recursion down </param> /// <param name = "conditionHanlder"> DeleGate </param> public static void DownRecursiveNode (this TreeListNode node, action <TreeListNode> conditionHanlder) {foreach (TreeListNode _ childNode in node. nodes) {conditionHanlder (_ childNode); DownRecursiveNode (_ childNode, conditionHanlder );}}

/// <Summary> /// obtain the subnode set of the visible area under the node /// </summary> /// <param name = "node"> obtain the visible subnode </param> /// <param name = "conditonHanlder"> condition DeleGate </param> /// <returns> visible subnode set </returns> public static List <TreeListNode> GetVisibleChildNodes (this TreeListNode node, predicate <TreeListNode> conditonHanlder) {List <TreeListNode> _ visibleChildNodes = new List <TreeListNode> (); TreeList _ tree = node. treeList; DownRecursiv ENode (node, n => {RowInfo _ rowInfo = _ tree. ViewInfo. RowsInfo [n]; if (_ rowInfo! = Null) {if (conditonHanlder (n) {_ visibleChildNodes. add (n) ;}}); return _ visibleChildNodes ;} /// <summary> /// obtain the subnode set of the visible area under the node /// </summary> /// <param name = "node"> obtain the visible subnode </param> /// <returns> visible sub-node set </returns> public static List <TreeListNode> GetVisibleChildNodes (this TreeListNode node) {return GetVisibleChildNodes (node, n => 1 = 1 );}

Hope this is helpful!

C # Read the XML file. I put all the sub-nodes of a node in a set, but I only want the information of some sub-nodes, using foreach

You can use Node. Name to obtain the Node Name and determine whether the Node is required.
For example, the node name of <a> </a> is ""

How to obtain the node attribute set in xml

// The dom4j package is required
Import java. util. HashMap;
Import java. util. HashSet;
Import java. util. Iterator;
Import java. util. Map;
Import java. util. Set;

Import org. dom4j. Attribute;
Import org. dom4j. Document;
Import org. dom4j. extends entexception;
Import org. dom4j. DocumentHelper;
Import org. dom4j. Element;

Public class CollectAttrs {
// Store all node names
Static Set <String> nodeName = new HashSet <String> ();
// Stores the attributes of a node name.
Static Map <String, Set <String> map = new HashMap <String, Set <String> ();

Static String xml = "<root>"
+ "<Person name = 'p1' age = '2' sex = 'man'> <address addrCon = 'ss'/> <zip code = '123'/> </ person>"
+ "<Person name = 'p3 'age = '2' sex = 'man' birthday = '2017-10-2'> <address addrCon = 'ss' alias = '22 '/> <zip code = '000000'/> </person>"
+ "<Company name = 'cool 'comAddr = 'ss'/>" + "</root> ";

/**
* @ Param args
* @ Throws define entexception
*/
Public static void main (String [] args) throws extends entexception {
// Text Test
Document doc = incluenthelper. parseText (xml );
// File test, the jar-versions.xml is the xml file under the src package
// SAXReader sax = new SAXReader ();
// Document doc = sax. read ("bin/jar-versions.xml ");
Element root = doc. getRootElement... the remaining full text>