return false

In jquery, Ajax defaults to asynchronous behavior (the default setting for Async is true,) so when Ajax is successful, onsubmit is actually executed, so return false is not able to prevent OnSubmit's default behavior.To solve the first to get Ajax

Onsubmit= "return Checkform ();" In the method:It is invalid to write the return false directly in Ajax.Because it returns the Success method in Ajax, not Checkform ().Therefore, you can set a global variable to make judgments and achieve the effect

Header has been sent, why still return False Header ("content-type:text/html; CHARSET=GBK "); Send a header $a =headers_sent (); Var_dump ($a); False Why is this return false????? ------Solution-------------------- The issue was mentioned in the

When you first learn about jQuery event processing, the first example is how to prevent the browser from executing the default action. For example, the following code demonstrates the click event:Copy codeThe Code is as follows:$ ("A. toggle").

Today, when I write a script that automatically backs up all the directories under the specified directory under Linux, I get a problem because I need to back up the directory, so I need to determine if the scanned file is a directory, and when I

E. stopPropagation () prevents event bubbles bubble event test Let's first look at this Code: We can see the following situation: span alert-> td alert-> table alert. This is called event bubbling. Events are triggered from bottom to top, from

Workaround for PHP unserialize return false PHP provides serialize(serialization) and Unserialize(deserialization) methods. Once serialized using serialize, the original data can be obtained using unserialize deserialization. Output: Serialize str:

Reference: http://www.cnblogs.com/xiangpiaopiao2011/archive/2012/02/28/2371679.htmlError returned: FTP connect time out.First to determine if the login is successful, if the login succeeds Ftpclient.storefile also return false, then refer to the

E. stoppropagation () prevents event bubbles                              bubble event test            Let's first look at this Code:     We can see the following situation: Span alert-> TD alert-> table alert. This is called event bubbling.

Workaround for Unserialize return false in PHP PHP provides serialize (serialization) and Unserialize (deserialization) methods. Once serialized using serialize, the original data can be obtained using unserialize deserialization. Let's take a look

Sometimes it's annoying to encounter bubbling events, really ...1.e.stoppropagation () block event bubblingHead> title>title> Scriptsrc= "Scripts/jquery-1.4.1.js"type= "Text/javascript">Script>Head>Body> Table> TR> TD>span>

Today, when I write a script that automatically backs up all the directories in the specified directory under Linux, I have a problem, because I need to back up the directory, so I need to judge whether the scanned file is a directory, and when I

In most cases, return false for the event handler to prevent the default event behavior. For example, by clicking on a element by default, the page jumps to the page specified by the href attribute of the element. Return False is the equivalent of

The example of this article tells the PHP Unserialize return false solution, share for everyone reference. The specific methods are as follows: PHP provides serialize (serialization) and Unserialize (deserialization) methods.Using serialize

Function winshow () // invoked by "invoicing" { Window. showmodaldialog ("invoice. aspx? Id = "+ varhid2 +" & inv_type = "+ document. form1.ddlinvoicemode. value + "", "", "status: modeless; edge: raised; unadorned: No; scroll = yes; resizable:

Header ("content-type:text/html; CHARSET=GBK "); Send a header $a =headers_sent (); Var_dump ($a); False Why is this return false????? Reply to discussion (solution) The issue was mentioned in the

Php: Encrypt () and openssl_private_encrypt () always return FALSE -------------------- phpcode -------------- & nbsp; $ crtpath = $ mailInfors ['dir'] [php: Encrypt () and decrypt () the returned value is always FALSE. ------------------ Php code -

There are times when we want the first line of the ListView to get the focus automatically, we use View.requestfocus (0) to operate, and sometimes it doesn't, and the debug shows Rerurn as false.This is because we get the focus too early and the

var flag=0;$.ajax ({url: "widget?type=member_register&ajax=yes&action=checkname&username=" +username, DataType: "JSON", Async:false,success:function (JSON) {userload = False;if (json.result==1) {var tip= ' The user is already in use, please

Unserialize This issue was found by a emlog forum user in the use of the Times wrongThe performance of the problem is as follows:The Emlog cache is saved by serializing the data Object (array) of PHP (serialize) and storing it as a file, and then