JS Frame Select-extjs charge problem

Recently made an enterprise-level Web application, involving JS with what framework, asked a few colleagues have mentioned ExtJS, but there is no mention of the issue of fees. Small company Small website Fortunately, big enterprises must be taken seriously, especially recently in the unit check in units, bursts of mail leaders have strict requirements, so every thing has to whisper is.

What version does ExtJS have?

ExtJS is now the latest version of 5.1, which is basically understood to be 5 versions.

Are there any charges for each version?

No instructions were found on the official website (www.extjs.com has been automatically redirected to Sencha), and No 3 or 4 downloads were found. However, from a large number of articles on the Internet, not every version is charged, 3.0 before the charge, 4.0 after the charge.

Concrete Construction ExtJS Official License Description: http://www.sencha.com/products/extjs/licensing/

In the first chapter of the book, "ExtJS (third edition)", I'm talking about this issue, and notice that I'm referring to the third edition. The 2nd edition of the book is only extjs2.2, when it is not now this can download the latest version, then only download the free learning version, to download the latest version from SVN is for money. At that time, if you were still using 2.0, you could use it for business. (The 2.1 version was just changed from the LGPL protocol to the GPL V3 protocol)

For the difference between LGPL and GPL v3:

Http://www.360doc.com/content/13/0313/09/2633_271180753.shtml

Why is the official website called Sencha?

ExtJS was added to Sencha at 5.0, and now ExtJS is part of the Sencha.

jquery has jquery, jquerymobile, similar, Sencha also have ExtJS, touch.

Will extjs4 be a little cheaper?

EXTJS4 time has not joined Sencha,license address is www.extjs.com/licensing/, but now can not access this address, jump directly to www.sencha.com/products/extjs/ licensing/, so, I can not find 4 of the price on the official website, is said 5, is estimated because the official does not recommend you to buy 4. Maybe if you insist on buying 4, the price is the same as 5, or contact the official directly.

is extjs3 completely free? EXTJS4, 5 must be charged?

3 must be totally free. and 4, 5 is not a must charge. There are actually 3 kinds of authorizations, if you are non-profit, can be used free of charge, profitable projects/products need to be charged, profitable widely used products are best to talk directly to ExtJS's father (Jack). Specifically see this:

http://www.sencha.com/products/extjs/licensing/(official website)

http://www.cnblogs.com/liping13599168/archive/2011/01/19/1938781.html (Chinese translation)

What are the conditions for free?

As long as compliance with the GPL can be free, the GPL protocol is more complex, you can see the above official website licensing link, you can also find an article about the line:

Http://zhidao.baidu.com/question/205510156.html

I just make a website for the company, also have to charge?

If you make money for Internet applications (although the Internet does not have much ExtJS), you must pay money, if you are only internal use of the company (that is, do not make money, you make a system use, make what money), do not charge, if you use to study, there is no charge, if you as party B, for party a system make money That still has to be paid.

EXTJS3, 4, 5 can I upgrade directly?

Now, EXTJS official has recommended everyone upgrade 5, and 3.0 version, will stop in 2015.6.1 support, if your team is too late to upgrade to 5, you can contact ExtJS's sales team directly.

https://www.sencha.com/store/extjs/

However, the upgrade here is not a direct upgrade! Instead, it is a painful process to modify a lot of code to accommodate the new version, from 2 to 3, from 3 to 4, or from 4 to 5.

Upgrade to the official guide of 5:

Http://docs.sencha.com/extjs/5.0/whats_new/5.0/extjs_upgrade_guide.html

Two examples from 3 liters to 4:

http://www.sencha.com/blog/ext-js-3-to-4-migration/

http://chen4w.iteye.com/blog/1988252

Note: Even upgrading from 4.1 to 4.2 also has to modify some of the code.

How is the charge version charged?

You can see the official website specifically. According to the number of developers, if only EXTJS5 version, not more than 5 developers, is 3,225.00dolar, about 20,000 yuan. This purchase is for permanent use, but should be based on the product, ExtJS will provide 1 years of technical support. If you're still one of the 5 developers, but for another product or project, I think it's going to be a re-charge.

Https://www.sencha.com/store/

If you are not engaged in the web, engage the mobile side, should buy touch bundle,5 personal is 3855 dollars more expensive than the web point. If you are a Web, Mobile universal app, you should buy the full version, $4825. 20 developers, basically multiplying by 4 is a little bit cheaper. If you have only 2 developers, or 6 developers, don't know if you can cut the bargain? ：）

If you want to purchase ExtJS's technical support service after one year, you can also:

https://www.sencha.com/store/extjs/

1 People 299 dollars, 5 people 1395 dollars (note, only ExtJS, not touch).

Can only be bought from abroad?

No, there are agents in China. I find the general agent from the Internet is a company in Shanghai, but it is not really the general agent is not clear:

Http://www.sencha-china.com/contacts.htm

Look inside the content is quite true, however, the latest in the extjs4.1 version, if even 5.0, 5.1 is not supported, do not have to consider the (feeling not too reliable). Do not know whether to get 5.0 of the agency or the company is too backward. From ExtJS's Chinese station (http://extjs.org.cn/) also said that this company is the general agent (should be reliable), there are 5.0, 5.1 of some introductions, but not like the official website marked the price, the telephone consultation.

Then there are some non-general agent companies (looking more unreliable):

http://www.buysoftware.cn/onlinebuy/detail.asp?p_id=5854

Baidu has a person said, 2013 China Agent Company's price is 4800 (also some people say 60,001 people), should be the renminbi, much cheaper, that still find China agent cost-effective. Like Altibase, although it is a Korean database, but in China also has agents, our company bought the authorization of China agent.

http://zhidao.baidu.com/question/569091084.html?from=commentSubmit#answers1434277273

Which version should I choose? 5, huh?

Because the ExtJS upgrade is very cumbersome, if you start using it now, of course directly with 5 is the best. But you have to consider, after the extjs6.0, 7.0, perhaps it is difficult to upgrade.

However, at the beginning of 5.0, IE6 and IE7 have not been supported, which is also part of the consideration.

http://extjs.org.cn/node/697

Where's ExtJS headquarters?

Redwood City, San Francisco. Maryland States and Europe have divisions.

Latest 5.1:

http://www.sencha.com/products/extjs/download/ext-js-5.1.0/3301

The two most important sites:

Official website: Http://www.sencha.com/products/extjs

Chinese Web: http://extjs.org.cn/

A price chart is attached:

2015.2.15

JS Frame Select-extjs charge problem