cascading switches

A backbone switch can establish multiple nodes at the same time through a switch, but it does not affect the communication capability between each node, port switching is used to allocate and balance Ethernet module ports among multiple network segments on the backend. With the development of the communication industry and the informatization of the national economy, the backbone switch market has steadily increased. Ethernet features high performance, high flexibility, relatively simple, and ea

In the development we often encounter similar spinner cascading menu effect, the following is the implementation of spinner cascading menu effectActivity_main.xml123Android:layout_width= "Fill_parent"4android:layout_height= "Fill_parent"5android:orientation= "Vertical" >6 7LinearLayout8Android:layout_width= "Fill_parent"9android:layout_height= "Wrap_content"Tenandroid:orientation= "Horizontal" > One A - -

In the use of the cascade output of a small problem in a model, I did not pay attention to the model in different ways each time the data is given to the controller, I am in the form of an array of output, but this array I as a private field, to the time when the cascading menu output today, can not output normally, Finally, I have to. This private field is removed, initializing an array in the scope of each method, so that it does not interfere with

in the previous article on how to use the document structure and CSS selector for elements to apply a variety of rich styles, today to have a good chat about CSS cascade and inheritance, first talk about concepts. Inheritance: The mechanism by which an element passes property values to its descendant elements, the popular point is that certain attributes of an element can be passed to child elements by inheritance. Such as: P{color:red}, you will see that the P element and the text in the tri

Ajax implementation Cascading drop-down menu is very simple, below is an AJAX implementation of the provincial and municipal cascading drop-down menu;The JSP adds the onchange event to The normal drop-down menu option is taken out in the database, for convenience, I write the province directly inside; there is no actual option in the city except for "choice";JS in the implementation of Ajax:function chcity

1. CSS Inheritance FeaturesAll CSS statements are based on the direct inheritance of the individual tags, CSS inheritance refers to the child tag inherits all the style of the parent tag, and can then be modified on the basis of the style of the parent markup style, resulting in a new style, and the style of the child tag does not affect the parent tag at all.CSS inherits throughout the entire CSS design, and each tag follows the concept of CSS inheritance.Example:DOCTYPE HTML>HTML>Head> titl

Cascading is created so that when you create a master record, you can create a new record associated with it. For example, after we create a customer record, we typically need to create a contact record and then set the contact record as the primary contact for that account record.In the above example, if we do this in the traditional way, we need to request the server 3 times to complete, if the relevant record data involved, then the number of reque

JSON-based cascading list implementation1, in JSON format to store the corresponding data; province Projson, City: Cityjson;var projson={"1": "Guangdong Province", "2": "Hubei Province"}; var cityjson={"1": {' 020 ': ' Guangzhou ', ' 0755 ': ' Shenzhen ', ' 0756 ': ' Zhuhai '}, ' 2 ': {' 027 ': ' Wuhan ', ' 0710 ': ' Xiangfan ', ' 0715 ': ' Chibi '}}2. After the page is loaded, you need to display the drop-down box for the province, so to read

Cascade Add Action Value when the current data is manipulated. The associated data is also manipulated, that is, the colleague who holds the current data will also save and modify the associated dataFirst, the relationship between objects is bound;' Add a Multiparty object to a collection of party objectsTm.getstudents (). Add (SM1); Tm.getstudents (). Add (SM2);To set the association object of a multiparty object to one side,Sm1.setteacher (tm); Sm2.setteacher (tm);Then add the Teacher object.S

CSS selectors and their inheritance characteristics, cascading properties1. Basic SelectorTag ID class This is no longer an introduction.2. Composite SelectorIntersectionThe intersection selector consists of two selectors that are directly connected, with the result that the intersection of their respective element ranges is selectedThe first one must be a tag selector, the second must be a category selector or an ID selector, which should be written

Shopping Cart This one has the last two questions left, is the order information cascaded warehousing and page caching, where the information refers to shopping carts and shopping items, that is, we will store the information of the cart in the database, but also in each shopping item information, and the foreign keys are related good, This involves the cascaded warehousing problem in the Hibernate; page caching problem refers to when the user confirmed the order, if the point back, will return

This article describes the JS implementation of the Web page multilevel cascading menu. Share to everyone for your reference. Specifically as follows: This is a cascading menu effect that you'll often see on the web, however, this code is to be implemented by JS, cascading menu content in the JS array, in order to page beautiful, this time also beautify the tabl

The dropdown box cascade selection function is very practical, the framework user management of the editing sector in the face of the organization's choice in the 3.2 version of the new cascade selection of support, so that the organization's choice more convenient and efficient, and not prone to error.The organizational structure of our framework is divided into 5 types, namely: Company, Branch, Department, Sub-department, working group. Different enterprises can make trade-offs according to th

Vaguely remember, in learning C language library functions, many string operations related to the function will return the result-related pointers. In fact, this return value is very often not very necessary, because in our incoming parameters, ten of them already contain this pointer. And the best thing about this return value is that we can write a cascading expression for our handy book. But in the actual work of these years, it is increasingly fel

With the development of network technology in the Times, various communication devices have emerged, and switches are one of them. The following describes rack-mounted switches in detail, the description above includes its construction and usage principles for your reference only. In some technical books or articles, we often see many terms about vswitches. Many of them are translated directly from English,

In Oracle, the multi-Table cascading deletion method is often used in the case of large data volumes. If we delete small databases, we can directly use delete to delete them, if the data size is large, cascading deletion of multiple tables will reflect the advantages. Simplest and fastest Deletion The following describes the efficiency advantage of Multi-Table cascading