Jquery dynamic select box options

javascript - Dynamically change selectbox options based on previous option selection - Stack Overflow

This post runs through the steps needed to generate the values of one select list based on the chosen value from another select. We will be using AJAX Asynchronous JavaScript and XMLas this avoids the need to refresh the whole page, giving a smoother experience to the user and avoiding unnecessary calls to the server. The AJAX call will send the selected drop down value to a PHP script which will return all matching values from a table in a MySQL database, which will then be used to populate our second drop down.

We will also be using the jQuery framework to make the AJAX call and to detect the select list change. The example below will be using an imaginary tea rota selection scenario, where we will select names of people based on their favourite beverage.

The first line establishes the database connection, followed by a select query to return the values from a table. We will be using these values to populate our second select list.

The PHP then loops through each row in the table, echoing out the HTML for the select options. Save your file, e. Our first select list will have a basic set of options and the second select has no option values, as these will be populated by the AJAX. Now to bring it all together. We first set up a few variables for the select list IDs, along with an initial option for our target select pse online stock trading game prompts the user to make a selection from the initial select.

Select Box Change Dependent Options dynamically

If the selected value is not blank then we execute the AJAX call. This may only flash momentarily so you may wish to disable this.

The AJAX call requests our PHP script, using the selected value as the GET parameter. Thanks for the well worked example. However, think line 12 of the php section just needs a minor edit:. Hi Matthew, what I would look to do is take all the code from the select.

Dynamically generate a select list with jQuery, AJAX & PHP

Then this new function can be called from both. Thank you ever so much! Still took me a couple of hours of fiddling but I got there in the end.

Hi there, thank binary helix stockwatch for the awesome code! I was wondering how can i get the selected GET value in a query in the same PHP script.

Thanks for the tutorial. I have a question, how do I access and use the value of the select target after it is returned and then seleceted? I want to pass this value to another request to get results to be displayed. Hello, i found this tutorial very useful! Thanks for your tutorial. Any suggestions would be most welcome. Hi, very nice tutorial. I actually implement this in my system.

I jquery dynamic select box options dont cross currency interest rate swap valuation how and I searched in google but no answer. Hope you can help me: This is my scenario: Select the catalog year to display the correct departments. Select hdfc netbanking prepaid forex card department to find the correct course.

Course is dependent on both the catalog year and dept. Your solution is wrong. The server side PHP should produce data only JSONthe client side javascript should receive this data and create option elements dynamically and append them to select.

Sir, thank for your tutorial and by passing the svalue in php its working but what to do with the javascript. I love this and it seems pretty straight forward but I am not sure where to place the JQUERY code and further how it is called? Is there a downloadable demo? Your email address will not be published. Hiding the navigation and address bar in Safari iOS 7.

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