I have some code that has one contact select box hard coded and then if you click on a add button it adds more contacts. Each contact can be selected from a dropdown and give a location in at location text box.
I want on submit to be able to know if they have selected someone and if not I want to clear out the Location box as there cannot be a location if there is no contact.
<!--- The myContactCount variable is set in another part of javascript this is the current count plus one of the number of current select boxes. --->
<script type="text/javascript" language="javascript">
var e='';
var contactSelectedValue='';
for(var i=1;1<myContactCount;i++){
e = document.getElementById('myContactID_'+i);
contactSelectedValue = e.options[e.selectedIndex].value;
/* I am trying to alert the value so I can then use a if statement to check for null or even change the 'Select a Contact' value to 0 and test for that. */
alert(contactSelectedValue);
}
</script>
<!--- the ID will be 1-100 depending on how many contacts they have added --->
<select name="myContactID_#ID#">
<option value="">Select a Contact</option>
<option value="1">Abe</option>
<option value="2">Barbara</option>
<option value="3">Cavlin</option>
</select>
So after they are created dynamically they code would look like this.
<select name="myContactID_1">
<option value="">Select a Contact</option>
<option value="1">Abe</option>
<option value="2">Barbara</option>
<option value="3" selected="selected">Cavlin</option>
</select>
<select name="myContactID_2">
<option value="">Select a Contact</option>
<option value="1">Abe</option>
<option value="2" selected="selected">Barbara</option>
<option value="3">Cavlin</option>
</select>
<select name="myContactID_3">
<option value="">Select a Contact</option>
<option value="1" selected="selected">Abe</option>
<option value="2">Barbara</option>
<option value="3">Cavlin</option>
</select>
Your script has couple of issues:-
1<myContactCount instead of i<=myContactCount and you are using name in the select and
trying to fetch it by id.
Demo
Html
<select id="myContactID_1">
<option value="">Select a Contact</option>
<option value="1">Abe</option>
<option value="2">Barbara</option>
<option value="3" selected="selected">Cavlin</option>
</select>
<select id="myContactID_2">
<option value="">Select a Contact</option>
<option value="1">Abe</option>
<option value="2" selected="selected">Barbara</option>
<option value="3">Cavlin</option>
</select>
<select id="myContactID_3">
<option value="">Select a Contact</option>
<option value="1" selected="selected">Abe</option>
<option value="2">Barbara</option>
<option value="3">Cavlin</option>
</select>
JS
var e='';
var contactSelectedValue='';
for(var i=1;i<=3;i++){
e = document.getElementById('myContactID_'+i);
contactSelectedValue = e.options[e.selectedIndex].value;
/* I am trying to alert the value so I can then use a if statement to check for null or even change the 'Select a Contact' value to 0 and test for that. */
alert(contactSelectedValue);
}
Related
HTML code:
<select name="category" onchange="change(this.selectedIndex)">
<option selected disabled hidden>Choose your category</option>
<option value="1">TVs</option>
<option value="2">Laptops</option>
<option value="3">Smartphones</option>
<option value="4">Peripherals</option>
<option value="5">Components</option>
<option value="6">Cameras</option>
</select>
PHP code:
$category = $_POST['category'];
$db->INSERT("INSERT INTO items Values(NULL,'$name','$category','$brand','$nick','$review','$rating')");
I want to save to base by POST my category. For example TVs. And the program saves "value" for example "1". When the value didn't exist it worked, but now I need it to JS function. How to do - name="category" reads option, not value?
So basically what a value is for is to indicate what an input should hold as a content,
so consider doing this
<select name="category" onchange="change(this.selectedIndex)">
<option selected disabled hidden>Choose your category</option>
<option value="TVs">TVs</option>
<option value="Laptops">Laptops</option>
<option value="Smartphones">Smartphones</option>
<option value="Peripherals">Peripherals</option>
<option value="Components">Components</option>
<option value="Cameras">Cameras</option>
</select>
hope it helped!!
Here is a dropdown menu of a website
<select name="ctl00$ddlWersjeJezykowe" onchange="javascript:setTimeout('__doPostBack(\'ctl00$ddlWersjeJezykowe\',\'\')', 0)" id="ddlWersjeJezykowe" style="width:100px;margin-right: 10px;">
<option selected="selected" value="1">Polska</option>
<option value="2">English</option>
<option value="17">Русская</option>
<option value="19">Українська</option>
<option value="20">Deutsch</option>
<option value="21">Français</option>
<option value="22">Español</option>
<option value="24">Português</option>
<option value="25">Türk</option>
</select>
I want to change the language to English through browser console. I tried this on my console
document.getElementById("ddlWersjeJezykowe").value="2";
It only selects English but doesn't change the language. How can i change the language to English through my browser console?
Changing the value programmatically doesn't fire the onchange event, so you have to call setTimeout('__doPostBack(\'ctl00$ddlWersjeJezykowe\',\'\')', 0) too.
Alternatively, you can call document.getElementById("ddlWersjeJezykowe").onchange()
This is will get the selected value from select dropdown
<select id="language" style="width:100px;margin-right: 10px;">
<option selected="selected" value="1">Polska</option>
<option value="2">English</option>
<option value="17">Русская</option>
<option value="19">Українська</option>
<option value="20">Deutsch</option>
<option value="21">Français</option>
<option value="22">Español</option>
<option value="24">Português</option>
<option value="25">Türk</option>
</select>
function GetValue() {
var e = document.getElementById("language");
var result = e.options[e.selectedIndex].value;
document.getElementById("result").innerHTML = result;
}
<button type="button" onclick="GetValue()">Get Selected Value</button>
<div id="result"></div>
I need to change the 3rd field automatically depending on first two field. ( it would be best if I change 3rd field and then first 2 fields changes also )
I need a Jquery solution. Anyone can help me please?
<select id="First">
<option val="car">car</option>
<option val="phone">phone</option>
</select>
<select id="Second">
<option val="car">car</option>
<option val="phone">phone</option>
<option val="boll">boll</option>
</select>
<hr>
<select id="ChangeItAutomatically">
<option val="carcar">car car</option>
<option val="carphone">car phone</option>
<option val="carboll">car boll</option>
<option val="phonecar">phone car</option>
<option val="phonephone">phone phone</option>
<option val="phonecarboll">phone boll</option>
</select>
Is this what you're looking for?
$(document).ready(function() {
// on change for the 3rd select
$("#ChangeItAutomatically").on("change", function() {
// get the value and split on space
var value = $(this).val().split(" ");
// select the other two selects based on the values
$("#First").val(value[0]);
$("#Second").val(value[1]);
});
// on change for the first two selects
$("#First, #Second").on("change", function() {
// set the value of the 3rd select based on the combination of values of the first two
$("#ChangeItAutomatically").val($("#First").val() + " " + $("#Second").val());
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<select id="First">
<option val="car">car</option>
<option val="phone">phone</option>
</select>
<select id="Second">
<option val="car">car</option>
<option val="phone">phone</option>
<option val="boll">boll</option>
</select>
<hr>
<select id="ChangeItAutomatically">
<option val="car car">car car</option>
<option val="car phone">car phone</option>
<option val="car boll">car boll</option>
<option val="phone car">phone car</option>
<option val="phone phone">phone phone</option>
<option val="phone boll">phone boll</option>
</select>
I have a select like this
<select name="category" >
<option value="0" selected>Select a Manufacturer</option>
<option value="10">Acer Technologies</option>
<option value="2">Alcatel</option>
<option value="14">Apple Iphone</option>
<option value="4">Azumi</option>
<option value="12">HTC Corporation</option>
<option value="8">Huawei</option>
<option value="5">LG Electronics</option>
<option value="11">Motorola</option>
<option value="9">Nokia Microsoft</option>
<option value="1">Samsung</option>
<option value="6">Sony Ericsson</option>
<option value="3">Zhong Xing ZTE</option>
</select>
And another select HIDDEN like this
<select name="manufacturer" >
<option value="none" selected>Select a Manufacturer</option>
<option value="Acer Technologies">Acer Technologies</option>
<option value="Alcatel">Alcatel</option>
<option value="Apple Iphone">Apple Iphone</option>
<option value="Azumi">Azumi</option>
<option value="HTC Corporation">HTC Corporation</option>
<option value="Huawei">Huawei</option>
<option value="LG Electronics">LG Electronics</option>
<option value="Motorola">Motorola</option>
<option value="Nokia Microsoft">Nokia Microsoft</option>
<option value="Samsung">Samsung</option>
<option value="Sony Ericsson">Sony Ericsson</option>
<option value="Zhong Xing ZTE">Zhong Xing ZTE</option>
</select>
Both selects are almost the same value, the first one is to save the manufacturer as category and the second one is to save the manufacturers name
The first one is visible while the second one is hidden ( display:none )
What I need is:
If the user select in select one for example
<option value="2">Alcatel</option>
In some way the hidden display:none select must be autoselected to
<option value="Alcatel">Alcatel</option>
Any way to do this?
I already have Jquery running other functions on the site
Thanks
Use change function:
$( "select[name='category']" ).change(function(e) {
$( "select[name='manufacturer']" ).val( $(this).find( "option:selected" ).text() );
});
But if option text in category select do not match option value in manufacturer select - code will not work.
I am not really a web person and am having trouble creating a cascading combo box. I have my options, but when I cannot figure out how to do a JavaScript command to switch the second box depending on the first box's selection.
These are my first set of options:
<select id="searchType" onchange="selectedOption(this)">
<option value="sessions">Sessions</option>
<option value="files">Files</option>
<option value="clients">Clients</option>
</select>
Depending on what they click there I would like to show these set of options:
SESSIONS
<select id="secondOptions">
<option value="conf">Config ID</option>
<option value="length">Length</option>
<option value="date">Date</option>
</select>
FILES
<select id="secondOptions">
<option value="id">File ID</option>
<option value="length">Length</option>
<option value="sent">Sent</option>
<option value="sessionId">Session ID</option>
</select>
CLIENTS
<select id="secondOptions">
<option value="name">Client Name</option>
<option value="organization">Organization</option>
<option value="specialty">Specialty</option>
<option value="sessionId">Session ID</option>
</select>
And finally a textbox to type into to really specify the search.
Once again, I am trying to do this using JavaScript, but if there is a better way to do this let me know please.
Given the amended html mark-up:
<form action="#" method="post">
<select id="searchType">
<option value="sessions">Sessions</option>
<option value="files">Files</option>
<option value="clients">Clients</option>
</select>
<select id="sessions">
<option value="conf">Config ID</option>
<option value="length">Length</option>
<option value="date">Date</option>
</select>
<select id="files">
<option value="id">File ID</option>
<option value="length">Length</option>
<option value="sent">Sent</option>
<option value="sessionId">Session ID</option>
</select>
<select id="clients">
<option value="name">Client Name</option>
<option value="organization">Organization</option>
<option value="specialty">Specialty</option>
<option value="sessionId">Session ID</option>
</select>
<fieldset id="textAreaSearchBox">
<legend>Search:</legend>
<textarea></textarea>
</fieldset>
</form>
(Note the changed ids, wrapping the form elements in a form, the addition of a fieldset, legend and textarea in the mark-up), the following JavaScript seems to work:
var select1 = document.getElementById('searchType');
var selects = document.getElementsByTagName('select');
select1.onchange = function() {
var select2 = this.value.toLowerCase();
for (i = 0; i < selects.length; i++) {
if (selects[i].id != this.id) {
selects[i].style.display = 'none';
}
}
document.getElementById(select2).style.display = 'block';
document.getElementById('textAreaSearchBox').style.display = 'block';
};
JS Fiddle demo.