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The Treegrid I write is asynchronous, because if I get all the data, it will load very slowly and affect the experience.But today, a wonderful question, when I open the first two levels without problems, to the third level suddenly the third level

How MVC waits for async method problems in a synchronous method (non-Async) methodFirst, executing wait () on the task returned by async in an ASP. NET MVC environment causes thread deadlock. Cases: Public ActionResult Asv2 () {

Kafka is a high-throughput distributed publish-subscribe messaging system that has the following features: Provides persistence of messages through the disk data structure of O (1), a structure that maintains long-lasting performance even

God is coder 2012-10-17 22:25 read: 77 Comments: 0 HTTP Authoritative Guide read notes (12) God is coder 2012-10-17 22:04 read: 68 Reviews: 0 HTTP Authoritative Guide read notes (11) God is coder 2012-10-17 21:47 read: 38 comments: 0 HTTP

Network protocol HTTP, TCP/IP, SocketThe network seven layer is from the bottom up to the physical layer, the data link layer, the network layer, the transport layer, the conversation layer, the presentation layer and the application layer

The controller (Ccontroller) in the MVC pattern primarily corresponds to the user's input, and the model is modified as appropriate, and the input data (View) should be considered the soul element of the MVC3 core element.The traditional webform is

Date format Android Chrome Linux Chrome Mobile Safari iOS Chrome Windows Safari Linux Firefox Windows Chrome YYYY-MM-DD t t f f f f t

1, for String,number and other basic types, = = and = = = There is a difference1) Comparison of different types, = = Comparison of "converted to the same type of value" to see if "value" is equal, = = = If the type is different, the result is not

Header ("Content-type:application/octet-stream"); header (' content-transfer-encoding:binary '); Header (" Content-disposition:attachment; Filename=\ "". $file _name. " \ ""); ReadFile ("lib/uploads/doc/". $file _name);These are the problem

When making a class-to-JSON string, an error Jsonexception:max allowed object depth reached while trying to export from type System.Single.OK, there is actually a data type that is not recognized by JSON in the properties of the class.Jsondata

jquery contains an easy way to get and set CSS properties for an element: //Get CSS Properties $( "H1"). CSS ("FontSize");//Returns a string such as "19px". Returns a string of "19px". $( "H1"). CSS ("Font-size");//Also works will also

+ Represents the next Level element,> represents a child element element 1 element 3 element 2Copyright NOTICE: This article for Bo Master original article, without Bo Master permission not reproduced.Hover change child elements and

For HTML files, most of the tags are used for the user to enter information, however, we want to achieve this effect:When the user does not enter the content, the input box has the default content, when the user clicks the input box, the input box

UIWebView is a very common view, commonly used to load Web pages, such as Baidu:When you click on the text box, a keyboard with toolbar will pop up, with 3 secondary buttons in the toolbarWith these 3 buttons, is convenient many, but the default is

1. Write directly to the body tag of the HTML, such as:onload= "func1 (); Func2 (); func3 ();" >2, in the JS statement call(1) When only one function is called:(2) calling multiple functions3. Custom Call function Multiple callsHow to invoke the

HTTP status code, which is a 3-digit code used to represent the HTTP response status of a Web server. The first number of a status code represents one of the five states of the response.1XX Series: Specifies that the client should have certain

In the APP test, you often need to modify the request parameters to get different display results to see the corresponding page display processing. For example, you can obtain different response results by modifying the parameters of the HTTP

Calling JSON across domainsJS Ajax calls JSON across domains and assigns global variables

1. What is a cookie?Cookie cookies? Oh! You want to eat it! A cookie is a file that is stored locally on the server and can be created on the server or created on the client. It is primarily used to store users ' records, such as items viewed. at

Reprint Please specify: theviper http://www.cnblogs.com/TheViperThe previous article is about limiting the maximum width of the picture group, where the response of the image + vertical horizontal center.In fact, combined with this cock of this