Select model according to brand drop down - javascript

i have two drop down boxes
the first drop down contain the mobile brands
and other contains the mobile models
i want them to work like when in first drop down a brand is selected
the second drop down will show models of that particular brand i want to do it with javascript
the drop down values are static values
how i can do that?
<select name="brand">
<option value="samsung">Samsung</option>
<option value="Nokia">Nokia</option>
</select>
<select name="model">
<option value="Galaxy">Galaxy</option>
<option value="N8">N8</option>
</select>
The Drop down will be like the above ones

Use ajax record on the first celect box change and fill it in the second select box. Jquery ajax will function will send data to a function which will fetch data from database .

Related

See which option was just selected in a multiselect

I have a multiselect bootstrap picker and would like to find the specific option that was just selected. For example, if I have the picker set to something like this:
<select class="form-select selectpicker" multiple aria-label="Default example">
<option value="Apple">Apple</option>
<option value="Cherry">Cherry</option>
<option value="Papaya">Papaya</option>
<option value="Kiwi">Kiwi</option>
</select>
When the user selects their first option, "Cherry", I would like to alert("Cherry"). When the user then selects their second option, "Apple", I would like to alert("Apple").
I have tried to use the option:selected:last value, but this only works to display the last option in the array of selected option. I would like to display the option that was most recently selected, regardless of its place in the array of selected options. Any insight is greatly appreciated.
EDIT: This questions was closed due to being marked as similar to the question found here: Get selected value in dropdown list using JavaScript
After looking through all of the provided answers in that link, I am not convinced that the questions are the same. I would like to get the most recently selected text in a multiselect picker, not the only selected option in a single select. So, if a user has both Apple and Papaya options selected, but selected the Apple option after selecting the Papaya option, I would like to alert("Apple"). Thanks.
Here Are Two Methods By which you can Use Alert.
First Method: With OnChange
<select class="form-select selectpicker" multiple aria-label="Default example" onchange = "alert(this.value)">
<option value="Apple">Apple</option>
<option value="Cherry">Cherry</option>
<option value="Papaya">Papaya</option>
<option value="Kiwi">Kiwi</option>
</select>
Second Method: Involves An Event Listener But Its Doing The Same Thing(Javascript)(Assuming That The ID of The Select Tag is selector
function change(){
alert(this.value)
}
document.getElementByID("selector").addEventListener("onchange",change)

dropdown and textarea binding with AngularJS

I have a very simple scenario and I wanted to use AngularJS for that. I am not able to get this one right.
I am retrieving data from database and directly writing it into the view inside dropdown. From their based on which item is selected, I want to populate the value into textbook.
So my code for it is as follows:
<select>
<option selected="selected" disabled="disabled">dropdown</option>
#foreach (System.Data.DataRow row in ViewBag.Template.Rows)
{
<option value="#row[1].ToString()">#row[0].ToString()</option>
}
</select>
<textarea></textarea>
I am trying to achieve following:
whatever option user select, the corresponding value for the item be populated into text area.
Please suggest how can I achieve using AngularJS.
You should use ngModel directive for that, the same for both select and textarea:
<select ng-model="selectModel">
<option selected="selected" disabled="disabled">dropdown</option>
#foreach (System.Data.DataRow row in ViewBag.Template.Rows)
{
<option value="#row[1].ToString()">#row[0].ToString()</option>
}
</select>
<textarea ng-model="selectModel"></textarea>
Demo: http://plnkr.co/edit/XOs6wUyqdr3ZlFtBq3RB?p=preview

multiselect dropdown sorts based on value present in option tag

I am having a multiselect dropdown whose value are populated based on iteration through for each. However the order I am sending the data is not maintained.
Please suggest what should I do.
<select id="secWhse" path="secondaryWarehouse" multiple="true" style="display: none;"
title="Select the secondary warehouse to which you want to give access to the user.">
<option value="1">Enterprise</option>
<option value="14">enter2</option>
<option value="17">enter3</option>
<option value="19">4thenterprise</option>
</select>
But if I am able to print the value directly, Its printing in my order.
UPDATE: Plugin we are using is: http://wenzhixin.net.cn/p/multiple-select/docs/#multiple-select
CODE:
$('#secWhse').multipleSelect({ filter: true,multiple: true});
JSP code to populate select tag:
${item.value}

Dynamically change text in php

hey guys i am building a form in which i want when a user select an option from the dropdown menus a text to be displayed and calculate the price.
The dropdown menu is:
<select id="recipient" name="recipient" tabindex="6" class="selmenu">
<option value="staff">Site Staff</option>
<option value="editor">Editor-in-Chief</option>
<option value="technical">Tech Department</option>
<option value="pr">Public Relations</option>
<option value="support">General Support</option>
</select>
and the other dropdown menu is:
<select id="recipient" name="recipient" tabindex="6" class="selmenu">
<option value="one">1</option>
<option value="two">2</option>
<option value="three">3</option>
<option value="four">4</option>
<option value="five">5</option>
</select>
What i want to do is when the user selects something from the first and the second menu i want a textfield to change dynamically... can anyone point me the way?
only ajax/jquery could do that in combination of php step might be...
onchange of any dropdown make a ajax request to php script.
return the json response from php script
use this response to either manipulate your form or display data on page.
you don't need to use php for this, it can all be done with jquery/javscript
an example using jquery is below (i had to rename your second select as you had re-used an ID):
$('.selmenu').change(function() {
$('#output').text($('#recipient option:selected').text() + ' ' + $('#recipient2 option:selected').text());
})
output is the id of your textbox.
on a select value being changed, output will be filled with the selected value in both select controls

jquery mobile multipage dropdown not displaying selected value

I have written my first jquery mobile site using their multipage template.
In my application, Changes in the main page can affect the selected value in a drop down in a sub page. The first time I go to the sub page, the correct option is selected and displayed. After that, when I go to the sub page, the correct option is selected (ticked), but the wrong option is displayed.
I created a jsfiddle to demonstrate this... http://jsfiddle.net/afePj/2/
page one lets you select an option...
<select name="selectname1" id="selectid1" onChange="changePageTwo()">
<option value="1">A</option>
<option value="2">B</option>
<option value="3">C</option>
</select>
...and sets the selected value on page two to match...
function changePageTwo() {
select1 = document.getElementById('selectid1');
select2 = document.getElementById('selectid2');
select2.selectedIndex = select1.selectedIndex;
}
...when you arrive on page two I would like the selected value to be displayed. But after the page has been displayed once, the option it shows never changes...
<select name="selectname2" id="selectid2">
<option value="1">A</option>
<option value="2">B</option>
<option value="3">C</option>
</select>
Any ideas about how I can make the sub page display the selected value?
Thanks
When you update a select menu in jQuery Mobile you need to call the select menu widget's refresh menu so that the display is updated to match the native elements
For example
$('selectid2').selectmenu('refresh');
http://jsfiddle.net/afePj/4/

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