textbox validation in javascript

1. Let the text box only allow input numbers, the use of asp.net mvc3.0 text box control Copy Code code as follows: @Html. TextBox ("TXT", null, new {@style = "width:300;", onkeypress= "return Regvalidateisdigit (Event)"}) You can see that the onkeypress event is registered in the text box, and the JavaScript function is triggered when you press the keyboard in a text box. Co

Acknowledgement: http://zuoming.iteye.com/blog/1430925------------------------------------------------If the use of JS plug-ins or frames, may cause eclipse to become very card, such as in the copy, modify the JS code, or in the editing of Java files will build Wordspace, in short, a step by one card, annoying, If I create a new Java file and then delete the hint that eclipse appears:There is a keyword: vilidating, this is the meaning of authentication, the original is because the

Learning from scratch _ JavaScript _ series (8) -- js series (2) (event trigger sequence, text reading, js compiling ajax, input validation, and down menu) (20) event trigger sequence If there are multiple scripts in the document (for example, automatically executed scripts), they are executed in a certain order (in the HTML document ): ① Execute first The output is green, and the background color turns gr

JavaScript Data Validation Class/*JavaScript: Authentication class Author: Yang Bo date:201603231, User name authentication 2, password Authentication 3, repeat password verification 4, mailbox verification 5, mobile phone number verification 6, Verification code verification*/varYb_validate =function(){ //User Name Verification This. Username =function(us

Try testing the following form with valid and invalid email addresses. The Code uses JavaScript to match the users input with a regular expression. Function code: Copy Code code as follows: function Validate (Form_id,email) { var reg =/^ ([a-za-z0-9_\-\.]) +\@ ([a-za-z0-9_\-\.]) +\. ([a-za-z]{2,4}) $/; var address = Document.forms[form_id].elements[email].value; if (reg.test (address) = = False) { Alert (' Invalid Email address

form and process the user-submitted form. Whether the form is generated or processed, the following three processes (tasks) are essential: the first is to determine the type of validation, the validation type values are obtained from the query string when the form is generated, and the hidden fields are read from the form when the form is processed. There are four types of forms authentication that the pro

{ return false; }}//Information TipsfunctionShowMessage (Message,elementname) { //Create Div varDivob=document.createelement (' div '); Divob. innerhtml=message; //get the upper-right corner of the elementname position varCob=document.getelementsbyname (elementname) [0]; varT=cob.OffsetTop; varL=cob.offsetleft+cob.offsetwidth; //Remove all the div from the TD varDivlist=cob.parentnode.getelementsbytagname (' div '); for(vari=divlist.length-1;i>=0;i--) {cOb. parentnode.removec

Validate_length (minlegth,maxlength,inputfiled, HelpText) {if(inputfiled.value.lengthif( HelpText!=null) { HelpText.innerhtml="Please enter a length of"+minlenght+"to"+maxlength+"Text";return false; } }Else if( HelpText!=null) { HelpText.innerhtml="" return true; } }Verify postal codefunction Validate_zipcode (inputfiled, HelpText) {if(inputfiled.value.length!=5) {if( HelpText!=null) HelpText.innerhtml="ZIP code must be 5-bit long";return false; }Else if(IsNaN (Inputfiled.value)

JavaScript setup Forms Basic validationAs follows:123456 - the98 About -101102103104 the106107108109 the111 the113 the the the117118119 -121122123124 the126127 -129 the131 the133134Education135136137138139 $ 141142143144145146147148149 Max151 the153154155Style= "FONT-SIZE:18PX; Color: #000; Background-color: #FC0; margin-left:550px; Border-color: #00F "/>156157Style= "FONT-SIZE:18PX; Color: #000; Background-color: #FC0; Margin-left:6

Copy the Code code as follows: Literally from the ABNF in rfc3986 (thanks to ' WCP ')function ValidateIPv6 ($IP){Return Preg_match ('/\a(?:(?:(?: [a-f0-9]{1,4}:) {6}::(?: [a-f0-9]{1,4}:) {5}(?: [a-f0-9]{1,4})?::(?: [a-f0-9]{1,4}:) {4}(?:(?: [a-f0-9]{1,4}:) {0,1}[a-f0-9]{1,4})?::(?: [a-f0-9]{1,4}:) {3}(?:(?: [a-f0-9]{1,4}:) {0,2}[a-f0-9]{1,4})?::(?: [a-f0-9]{1,4}:) {2}(?:(?: [a-f0-9]{1,4}:) {0,3}[a-f0-9]{1,4})?:: [a-f0-9]{1,4}:(?:(?: [a-f0-9]{1,4}:) {0,4}[a-f0-9]{1,4})?::)(?:[A-f0-9] {1,4}:[a

JavaScript is currently the most popular server scripting language, using JavaScript to add rich logic and more complex dynamic effects to your Web pages.Code collated from w3school:http://www.w3school.com.cn：Example code:Javascript: Basics (Output/edit content, edit properties, event response, input validation)

This article analyzes the JavaScript input date is more than equal to the current date validation code, share for everyone to refer to, specific as follows: I hope this article will help you with JavaScript programming.

Because to be a mobile app client, if Yii relies on JavaScript to verify (such as whether the user name is empty AH), then the Android client will not work. Of course some people say directly on the Android client to verify it. In fact, it is true, I feel at the server to do more than verify that I am relieved. For advice Reply content: Because to be a mobile app client, if Yii relies on JavaScript to

The examples in this article summarize the commonly used validation functions for JavaScript. Share to everyone for your reference. The specific summary is as follows: First, String class validation 1. Length Limit Copy Code code as follows: 2. Can only be Chinese characters Copy Code code as follows: 3. "Can only be Engli

ss[JavaScript Regular Validation Section 25th

= =) Alert (/^-?\d+\.\d+$/.test (This.value));"/>Real numbers:"text"Size=" -"onkeydown="if (Event.keycode = =) Alert (/^-?\d+ (\.\d+) $/.test (This.value));"/>Keep 1 decimal places:"text"Size=" -"onkeydown="if (Event.keycode = =) Alert (/^-?\d+ (\.\d{1,1})? $/.test (This.value));"/>Keep 2 decimal places:"text"Size=" -"onkeydown="if (Event.keycode = =) Alert (/^-?\d+ (\.\d{1,2})? $/.test (This.value));"/>Keep 3 decimal places:"text"Size=" -"onkeydown="if (Event.keycode = =) Alert (/^-?\d+ (\.\d{

The three methods of using the javascript Validation box are often used in development. Record the first method: it is quite useful. You can open the page only after confirmation. The principle is also clear. It is mainly used to confirm deletion of a single message. The Code is as follows:

Script> $(function () { varD= NewDate (); varstrdate=Getdatestr (d); $("#beginTime"). Val (strdate); $("#endTime"). Val (strdate); //$ ("#beginTime"). Val ("2015-10-10"); $("#beginTime"). Change (function () { varD2= NewDate ($ ("#beginTime"). Val ()); if(D2d) {alert ("the commencement date must be greater than the current date."); $("#beginTime"). Val (strdate); } }); $("#endTime"). Change (function () { varD2= NewDate ($ ("#beginTime"). Val ()); var

Account nbsp; nbsp; nbsp; Number: Secret nbsp; nbsp; nbsp; Code: Confirm Password: Surname nbsp; nbsp; nbsp; Name: Sex nbsp; nbsp; nbsp; Do not: Year nbsp; nbsp; nbsp; Aged: Email: Fixed phone: Mobile: Implementing form validation using JavaScript and regular expressions (Css,js exercise)

Fuchangxi's Regular:Copy CodeThe code is as follows:/^ ([0-9a-za-z\-_\.] +) @ ([0-9a-z]+\. [A-z] {2,3} (\. [A-z] {2})?) $/g The start must be one or more word characters or--plus @, then one or more word characters or--. Then the point is "." and a combination of word characters and--can have one or more combinations.Copy CodeThe code is as follows:I don't quite understand the specific rules of the mailbox. It's easier to feel the regular.Check out several types of mailbox @ prefixes1, Pure Di