Article Introduction：This article mainly introduces the JS method to simply implement the city's secondary linkage selection plug-in, involving JavaScript implementation of select traversal and setting skills. It is very simple and practical. Friends who need it can refer to it.

2016-05-16 comment 0  1181

Article Introduction：This article mainly introduces a secondary linkage drop-down menu implemented by the combination of jQuery, PHP and MySQL. Friends in need can refer to it.

2016-05-16 comment 0  2023

Article Introduction：This article mainly introduces jquery to implement the secondary linkage of the drop-down menu, using the json object to get the value from the DB to display the linkage. Friends in need can refer to the following

2016-05-16 comment 0  1282

Article Introduction：This article mainly introduces the realization of the second-level linkage drop-down selection menu of provinces and cities across the country based on JavaScript. It analyzes in detail the implementation skills of the second-level linkage drop-down menu of provinces and cities in js in the form of a complete example. It is very simple and practical. Friends who need it can For reference

2016-05-16 comment 0  1321

Article Introduction：This article mainly introduces the method of jQuery+JSON to realize AJAX secondary linkage. It analyzes the front-end jQuery combined with ajax to transfer json format data and background data processing skills in the form of examples. It has certain reference value. Friends in need can refer to it.

2016-05-16 comment 0  1238

Article Introduction：Populate Cascading Dropdowns with jQueryProblemCreating a form with two dropdowns (Country and City), you need to make them dynamic so that only...

2024-11-03 comment 0  477

Article Introduction：代码示例展现PHP二级联动菜单的实现。对于初学者来说， PHP二级联动菜单代码示例： script language = JavaScript varonecount; onecount = 0 ; subcat = new Array(); ?php mysql_connect(localhost,charles, c

2016-06-13 comment 0  1870

Article Introduction：We will need to make a drop-down menu when using WPS tables, so many users are asking how to make a WPS secondary linkage drop-down menu? Users who are unclear can take a look at the relevant strategies on how to set up secondary linkage drop-down menu options in WPS brought to you by this website. How to set the secondary linkage drop-down menu option in WPS Method 1. Open the WPS table, select the secondary linkage menu corresponding table, use the key combination [CtrI+G] to open the positioning dialog box, select [Constant], and click [Position]. 2. Click [Specify] under the [Formula] menu. 3. Select [First Line] in the pop-up dialog box and click [OK]. 4. Select the [Province] column, click [Data] - [Validity], select [Sequence], and select [Source]

2024-09-05 comment 0  492

Article Introduction：PHP+Ajax+JS省市区三级联动。基本思想就是：在JS动态创建select控件的option,通过Ajax获取在PHP从SQL数据库获取的省市区信息，代码有点长，但很多都是类似的，例如JS中省

2016-06-13 comment 0  1031

Article Introduction：This is a simple and most basic example of drop-down box linkage. This example is mainly for those who are interested in linkage that only has two levels, and the first level is a fixed option. The content of the second level is also relatively simple and does not refresh. Partners can refer to it

2016-05-16 comment 0  2151

Article Introduction：This article mainly introduces the secondary linkage menu effect implemented by php mysql, which involves the connection and query of PHP operating mysql combined with the DOM node operation of javascript to achieve the secondary linkage menu effect. At the end, it also comes with the corresponding SQL statement of the mysql database, which is required Friends can refer to it

2018-05-21 comment 0  4879

Article Introduction：Is it true to check the second-level athlete certificate in the Sports Education Alliance software? The rich exercise methods in the software are waiting for you to learn. There is always an exercise tutorial that is very suitable for you. Some friends said, is it true that I checked the second-level athlete certificate in the Sports Education Alliance software? So is this certificate recognized by the country? Where should we learn about these questions? If there are users who want to quickly know whether this certificate is genuine, the following short article will give you the answer. The Level 2 Athlete Certificate of the Sports Education Alliance is real. The Sports Education Alliance is officially a legal enterprise that has been officially certified and protected by law. The company has obtained a registration license from the Ministry of Industry and Information Technology and has been certified to operate legally. Therefore, it is reliable to look up information on Level 2 athlete certificates. physical education

2024-03-12 comment 0  862

Article Introduction：PHP+Mysql+Ajax+JS实现省市区三级联动。基本思想就是：在JS动态创建select控件的option,通过Ajax获取在PHP从SQL数据库获取的省市区信息，代码有点长，但很多都是类似的，例如JS中省

2016-06-13 comment 0  1635

Article Introduction：This article mainly introduces the relevant information on realizing the effect of secondary linkage menu based on Javascript. Friends in need can refer to it.

2016-05-16 comment 0  1361

Article Introduction：Consider automatically splicing the content that needs to be dynamically refreshed after the previous drop-down box, etc. It is easier to implement it with JQuery. The code is implemented using the province and city linkage effect as an example.

2016-05-16 comment 0  1281

Article Introduction：This article mainly introduces the secondary linkage effect of the drop-down box implemented by js, involving JavaScript's techniques for traversing page elements and node operations. Friends in need can refer to the following

2016-05-16 comment 0  1194

Article Introduction：Digital cities are the trend of future urban development, and the CIM platform is its key digital infrastructure. On October 12, at the 16th Smart City Conference held in Guangzhou, Glodon upgraded and released CIMCUBE2.0, a city information model (CIM) basic platform with completely independent intellectual property rights. This platform innovatively creates "space-time" The three-middle platform model of "middle platform + IoT middle platform + data middle platform" upgrades the core capabilities of the CIM platform such as data processing, fusion, visualization, and analysis, greatly improving the efficiency of urban data application, while introducing cutting-edge technologies such as AI semantic models to enhance Improved CIM’s complex business response capabilities. Song Chaozhi, Chairman of the Chinese Society of Surveying and Mapping, Tong Qingxi, Academician of the Chinese Academy of Sciences, Zhou Chenghu, Academician of the Chinese Academy of Sciences, Vice Director of the China Civil Engineering Society

2023-10-13 comment 0  728

Article Introduction：This article mainly introduces the json files used here to realize three-level linkage selection through jquery. They are just examples. They can be added or written according to the situation. Interested friends can refer to it. I hope it will be helpful to everyone.

2016-05-16 comment 0  1015

Article Introduction：Cascading Dropdown Menu: Auto-Populating Second Menu Based on First SelectionIn this scenario, we want to create two interconnected dropdown menus, where the options in the second menu change dynamically based on the selection made in the first menu.

2024-10-21 comment 0  330

Article Introduction：Meanwhile, EarthMeta is revolutionizing virtual real estate through its digital Earth platform, introducing a novel way to own and monetise virtual cities. Simultaneously, the Artificial Superintelligence Alliance (FET) shows notable market activity,

2024-10-13 comment 0  1152