Skip to main content

Add remove select and set items in select drop down list


Introduction:
In my previous article I have explained aboutConvert string to lowercase-uppercase in xslt. In this article I am going to explain about how to add,remove,check and set the items in select using jQuery

Explanation:
For example in my form I have a select option with id “seloption”. To add a item with value “option1” and with text “Option-1” below code is used.


var options = jQuery('#seloption').attr('options');          
options[options.length] = new Option('Option Name', 'option value', true, true);

Now to remove the option with value “option1” below code is used.

jQuery("#seloption option[value=option1]").remove();

To check whether the option with value “option1” is present in the select below code is used

jQuery("#seloption option[value='option1']").length>0

If the option is present then it will return the index value of the option. Otherwise it will return -1. To make the option “option1” as a selected option below code is used.

jQuery("#seloption ").val("option1");

To get the selected value of the select below code is used.

var value = $('select#dropDownIdoption:selected').val();

Do you like this article? Help us to improve. Please post your comments below.

Comments

  1. This comment has been removed by a blog administrator.

    ReplyDelete

Post a Comment

Popular posts from this blog

Code To Convert rupees(numbers) into words using C#.Net

Introduction: In my previous article I have explained about how to validate emailid using javascript . In this article I am going to explain about code used to convert rupees(numbers) into words using C#.Net . Explanation: For explanation purpose I have a page. It has a textbox to input the numbers. And when you click on the convert to words button then it will convert the input numbers into words and shows it in the below label. Below is the C# code used to do this functionality. public static string NumbersToWords( int inputNumber) {     int inputNo = inputNumber;     if (inputNo == 0)         return "Zero" ;     int [] numbers = new int [4];     int first = 0;     int u, h, t;     System.Text. StringBuilder sb = new System.Text. StringBuilder ();     if (inputNo < 0)     { ...

CHECK IF FUNCTION EXISTS EXAMPLE

http://css-tricks.com/snippets/javascript/check-if-function-exists-before-calling/ When using scripts that are shared between different areas of a site, there may be cases where a function is called that doesn't exist. It makes sense on one page (the dependency is there) but not another. The difference is too slight to warrant forking the file into different versions. Instead, you can just check if the function exists before calling it to avoid the error: if ( typeof yourFunctionName == 'function' ) { yourFunctionName ( ) ; } jQuery code snippet to check whether a function exists within the JavaScript code. This can be easily achieved by using the jQuery.isFunction() function. Useful for checking if a jQuery function exists before calling it! < script type = "text/javascript" >      function  somenoobfunction ( )   {      }         // using jQuery      if   ( $. isFunction ( wi...

C# Extension Methods Example

In this article i am going to explain about Extension Methods  with example. Extension methods enable you to "add" methods to existing types without creating a new derived type, recompiling, or otherwise modifying the original type. Extension methods are a special kind of static method, but they are called as if they were instance methods on the extended type. For client code written in C# and Visual Basic, there is no apparent difference between calling an extension method and the methods that are actually defined in a type. If you do implement extension methods for a given type, remember the following points: An extension method will never be called if it has the same signature as a method defined in the type. Extension methods are brought into scope at the namespace level. For example, if you have multiple static classes that contain extension methods in a single namespace named Extensions, they will all be brought into scope by the using Extensions; directive. ...