To obtain the parent node in jquery, we can use the closest and parents functions. Next I will introduce you to the implementation code of the parent node, hoping to help you all.
There are many ways to obtain the parent node in js, such
1) parentObj. firstChild: This method can be used if the node is the first subnode
a child window using a pointer to the parent window?Just do it, write a test code and try it out.Mainwindow.ui has a lineedit and pushbutton, click to pop up the dialog instance, Dialog.ui, there is a pushbutton, click on the MainWindow to modify the text content of Lineedit. The code is as follows: (1) mainwindow.h
#ifndef Mainwindow_h#define Ma
The discovery today of the need to call subclasses in the parent class has never been used before and is also possible through practice. Examples such as:
Copy Code code as follows:
/**
* Parent class calling subclas
, to explain the exception that we want to explain today, we will change the layout File Usage method by commenting out the above line of code and replacing it with the following code:
// Obtain the Infalter object
LayoutInflater inflater = (LayoutInflater) getSystemService(LAYOUT_INFLATER_SERVICE);LinearLayout parent = (LinearLayout) inflater.inflate(R.layout.m
Conversion between child classes and parent classes in C ++ (Code tutorial), neutron tutorial
Conversion between child classes and parent classes in C ++ (Code tutorial)
// EX_EXAM.cpp: defines the entry point of the console application.
//
# Include "stdafx. h"
# Include
Using namespace std;
These days, my teeth have been sore and I have never written a blog. Today I have a training opportunity.CodeRefactored "the content of this piece was sorted out. First, let's take a look at the method to be parent.
The method is parent-or the translation function moves up, which means that the method moves from the subclass to the parent
1. Obtain subnodes For example, if it is a div element whose id is test, we select $ ('# test') and we want to find a span element whose class is demo under this div, there are several methods1. Use filtering Conditions$ ('# Test span. demo ')2. Use the find () function$ ('# Test'). find ('span. demo ')3. Use the children () function$ ('# Test'). children ('span. demo ')2. Obtain the parent node Jquery has
one, get child nodes
For example, is a DIV element with the test ID, so we select, $ (' #test '), we want to find a class under this div as the span element of demo, there are several ways
1, the use of filter conditions
$ (' #test Span.demo ')
2. Use the Find () function
$ (' #test '). Find (' Span.demo ')
3. Use the Children () function
$ (' #test '). Children (' Span.demo ')
Second, get the parent
Copy Code code as follows:
return value to parent form
function Returnparent (value) {//Get child form return value
var parent = window.dialogarguments; Get parent page
Parent.location.reload (); Refreshing the parent pag
(Companynode n:nodes) {//filter from nodes so that the child nodes are Pnodeif (PNODE.GETCYBH (). Equals (N.GETSJ_CYBH ())) {Childnodes.add (n);}}return childNodes;}/*** Determine if the root node* @param node* @return*/public boolean RootNode (Companynode node) {Boolean isrootnode = true;for (Companynode n:nodes) {//filter from nodes so the parent nodeif (NODE.GETSJ_CYBH () Equals (N.GETCYBH ())) {//To determine the incoming node object, his superio
Jquery parent-child sibling node search sample code
This article describes how to find the parent and child node of jquery. For more information, see
JQuery. parent (expr) finds Father's Day points and can pass in expr for filtering, for example, $ ("span "). parent () or
(String [] args) 24 {25 new InitialOrderTest (); 26} 27}
Run the above code and we will get the following output:
# Inheritance
Example 5:
Public class HelloA {public HelloA () {// constructor System. out. println ("constructor of A") ;}{// construct the code block System. out. println ("construct code block of A");}
UML diagram and code representation of class-to-class relationships
Keywords:Oo uml, generalization, dependency, association, aggregation
The relationship between classes plays an important role in understanding object-oriented objects. I was often asked this question during interviews. Here I will introduce it.There is a relationship between the
without a string is: public void Huang.de.wei.ClassTest.info ()The full comments of Classtest are as follows@java. lang.deprecated ()Note: The annotation information cannot be found @suppersswarnings informationThe @suppersswarnings comment on the class element is: nullThe full inner classes of classtest are as follows:Class Huang.de.wei.classtest$innerThe outer class of the Inclazz
PHP uses class inheritance to solve the problem of code duplication, PHP code
The examples in this article describe the problem of PHP using class inheritance to resolve code duplication. Share to everyone for your reference. The specific analysis is as follows:
Inheritance
Java compressed file tool class ZipUtil usage code example, tool class ziputil
This example uses the Java Zip input/output stream to compress and decompress files. The first part of the code is used to obtain the file path and change the compressed file name. The details are as follows:
Package com.utility.zip; import
Looking for a long time on the internet did not find an example, no way, want to be lazy also stolen, or their own honest to write a bar. No more nonsense, below please see the detailed method I do.
1. Infinite classification must be database support, users can dynamically add their classification, the following is the structure of the database:
The database has three main fields, which is the most basic. The first is the primary key, the second is the name of the category, and the third is t
do the include work. This job is done in autoload.
The above code clearly did not consider the introduction of non-core files, which is my negligence.
Then how does yii help us introduce non-core files?
This should start with CApplication.
Abstract class CApplication extends CModule {public function _ construct ($ config = null) {if (is_string ($ config) $ config = require ($ config); Yii :: setApplication
Implements simple background code Templates using class inheritance relationships, and inherits background code templates.
The advantage of Asp.net is to quickly build applications. For some of the most basic data addition, deletion, modification, and paging event or style settings, you can write a virtual method in the paren
class, and can extend the parent class as needed.(ii) The correspondence between the generalization relation and the code(PS:Bird class inherits Animal class, Bird is an animal) [CSharp]View Plaincopyprint?
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