I have a html list which i want to dynamicly enable or disabled based on input. Usually at the end of the select you just use enabled or disabled to disable or enable the whole html list. But im not sure how to use function to do this.
<select size="5" name="name" onChange="rolevalue" enabler()>
<option value="1" selected="selected">Option 1</option>
<option value="2">Option 2</option>
<option value="3">Option 3</option>
</p>
</select>
Here is my function
Function enabler()
if ListboxCustomer.value = 1 Then
document.write "enabled"
else
document.write "disabled"
end if
End Function
I know ListboxCustomer.value is set to 1 but the function isnt used. I know in C# i need to return my function for it to do anything, but ive read many examples of functions in vbscript and they dont use that. Any help? :)
If your doing this in a HTA use the following
<select size="5" name="name" onchange="enabler()">
<option value="1" selected="selected">Option 1</option>
<option value="2">Option 2</option>
<option value="3">Option 3</option>
</select>
Then define your event handler
Sub enabler()
Set List = window.event.srcElement
List.Enabled = Not (List.Value = 1)
End Sub
For context this is purely a solution for the OPs specific requirement. I wouldn't recommend this approach normally. It's worth remember you can still use JavaScript in a HTA Application, but the OP specifically asked about using VBScript.
Related
Here I want to get a project from database to edit or change its properties for ex. destination country.
when the project is loaded the select element should be already selected same as the project.DestinationCountry. Then I may change this property if needed.
<select type="text" class="form-control" id="Destination" value="#project.DestinationCountry">
<option value="Canada">Canada</option>
<option value="Sweden">Sweden</option>
<option value="Switzerland">Switzerland</option>
</select>
I tried to use value="#project.DestinationCountry" within select element but it did not work.
Here is c# code
private ProjectModel project;
protected override void OnInitialized()
{
project = _db.GetProject<ProjectModel>(id);
}
This won't work since you can't add a value to the select element.
<select type="text" class="form-control" id="Destination" value="#project.DestinationCountry">
<option value="Canada">Canada</option>
<option value="Sweden">Sweden</option>
<option value="Switzerland">Switzerland</option>
</select>
However, to make an option selected by default you need to use the selected attribute on option. To make sure the select element shows the fetched value from database, the best bet would be to use conditionals. If project.DestinationCountry matches the value add the selected attribute.
<select type="text" class="form-control" id="Destination">
<option value="Canada" selected>Canada</option>
<option value="Sweden">Sweden</option>
<option value="Switzerland">Switzerland</option>
</select>
You can achieve this using conditional attributes
<select type="text" class="form-control" id="Destination">
<option value="Canada" selected="#(project.DestinationCountry == "Canada")">Canada</option>
<option value="Sweden" selected="#(project.DestinationCountry == "Sweden")">Sweden</option>
<option value="Switzerland" selected="#(project.DestinationCountry == "Switzerland")">Switzerland</option>
</select>
This checks whether the condition matches. If true then the value assigned is same as the attribute name thus resulting in selected="selected". When the value is false the attribute won't render at all. Or better use a for loop to output the options and for each entry you can check whether it's the current value and then add selected attribute to it to it.
I did like this and it worked but I want to know if there is smarter solution for that.
<select type="text" class="form-control" id="Destination">
<option value="">Select a country</option>
#foreach (var country in Countries)
{
if (project.DestinationCountry != null)
{
<option value="#country" selected=#(project.DestinationCountry.ToLower() ==
country.ToString().ToLower())>#country</option>
}
else
{
<option value="#country">#country</option>
}
}
</select>
I have a form in which I have added "Please Select" option for the drop-down.
The form should work in a way that if users doesn't select values 1, 2-5, 6-15, 16-30 etc then the form should not submit.
In my form, if I select "Please Select" then the form gets submit as it being treated as 1, 2-5, 6-15, 16-30, etc.
The HTML codes for the form generated at run time are:
<select name="input_12" id="input_37_12" class="medium gfield_select" tabindex="5" aria-required="true" aria-invalid="false">
<option value="Please Select" selected="selected">Please Select</option>
<option value="1">1</option>
<option value="2-5">2-5</option>
<option value="6-15">6-15</option>
<option value="16-30">16-30</option>
<option value="31-100">31-100</option>
<option value="101-250">101-250</option>
<option value="251-1000">251-1000</option>
<option value="1001-2500">1001-2500</option>
<option value="2501 +">2501 +</option>
</select>
Problem Statement:
I am wondering what changes I should make in the HTML code above so that "Please Select" option is not treated as other drop-down values (1, 2-5, 6-15, 16-30 etc ) in the HTML.
To force form validation on a select input, you need to use the required attribute on your select form and set the value of the initial option to "".
Note: aria-required="true" works fine as well, especially for browsers that don't yet support HTML5, I just prefer the shorter HTML5 alternative. This also applies to selected="selected" vs selected.
<form>
<select name="input_12" id="input_37_12" class="medium gfield_select" tabindex="5" required aria-invalid="false">
<option value="" selected>Please Select</option>
<option value="1">1</option>
<option value="2-5">2-5</option>
<option value="6-15">6-15</option>
<option value="16-30">16-30</option>
<option value="31-100">31-100</option>
<option value="101-250">101-250</option>
<option value="251-1000">251-1000</option>
<option value="1001-2500">1001-2500</option>
<option value="2501 +">2501 +</option>
</select>
<button type="submit">Submit</button>
</form>
Edit: This can also be done via Javascript.
// Obtain our form via its ID
var form = document.querySelector('form');
// Add a listener to our form to wait for its submission
if (form.addEventListener) {
form.addEventListener("submit", validate, false); //Modern browsers
} else if (form.attachEvent) {
form.attachEvent('onsubmit', validate); //Old IE
}
function validate(e) {
var select = e.target.querySelector("select");
// Get the value of our selected option
var selectedOption = select.options[select.selectedIndex].value;
// Compare the value of the default option to the selected option
if (selectedOption === "Please Select") {
// Trigger Error and prevent the form submission
alert("Please select an option!")
e.preventDefault();
}
}
<form>
<select name="input_12" id="input_37_12" class="medium gfield_select" tabindex="5" aria-required="true" aria-invalid="false">
<option value="Please Select" selected="selected">Please Select</option>
<option value="1">1</option>
<option value="2-5">2-5</option>
<option value="6-15">6-15</option>
<option value="16-30">16-30</option>
<option value="31-100">31-100</option>
<option value="101-250">101-250</option>
<option value="251-1000">251-1000</option>
<option value="1001-2500">1001-2500</option>
<option value="2501 +">2501 +</option>
</select>
<button type="submit">Button</button>
</form>
To simply prevent the users from selecting an option just add disabled in the html for the option (as pointed out in the question from the comment marking this as a possible duplicate, #csmckelvey).
However, you can also simply add a display:none to the option:
select option:first-of-type{
display:none;
}
At least works on android, and yet show the text of the first option (even though it Should be hidden - dont Know why).
Anyways it's important to Remember to validate the form as the other answer suggests.
Hi Ladies and Gentlemen,
Where I work is currently transitioning to a site using Drupal 7. We are trying to get a temporary site up and running until our new site is finished. I am a complete newbie to Drupal, but managing ok. Anyway I have a page that has an onchange select box which is supposed to open a PDF file. I am unclear how to make the onchange function work. I have looked on several pages but everything is a little confusing. Here is the code I need to change :
<form name="cataloglinks" action="">
<p class="style2">
<span class="style3">
Other editions of the online DACC catalog are also available:
<select name="cataloglinks-list" size="1" id="cataloglinks-list onchange="goPage(this.options[this.selectedIndex].value)">"
<option value="." selected="selected">Select an edition</option>
<option value="catalog/catalog08-09.pdf">Catalog for 2008-2009</option>
<option value="catalog/catalog09-10.pdf">Catalog for 2009-2010</option>
<option value="catalog/catalog10-11.pdf">Catalog for 2010-2011</option>
<option value="catalog/catalog11-12.pdf">Catalog for 2011-2012</option>
<option value="catalog/catalog12-13.pdf">Catalog for 2012-2013</option>
<option value="catalog/catalog13-14.pdf">Catalog for 2013-2014</option>
Your issue has nothing to do with Drupal, it might be a HTML tags issue or missing goPage() javascript function.
Try to implement the following code:
<script type="text/javascript">
function goPage(path) {
if(path != '') {
window.location = [location.protocol, '//', location.host, '/'].join('') + path;
}
}
</script>
<select name="cataloglinks-list" size="1" id="cataloglinks-list" onchange="goPage(this.options[this.selectedIndex].value);">
<option value="" selected="selected">Select an edition</option>
<option value="catalog/catalog08-09.pdf">Catalog for 2008-2009</option>
<option value="catalog/catalog09-10.pdf">Catalog for 2009-2010</option>
<option value="catalog/catalog10-11.pdf">Catalog for 2010-2011</option>
<option value="catalog/catalog11-12.pdf">Catalog for 2011-2012</option>
<option value="catalog/catalog12-13.pdf">Catalog for 2012-2013</option>
<option value="catalog/catalog13-14.pdf">Catalog for 2013-2014</option>
</select>
Note: I assumed that catalog folder is in the root directory of your site.
At the moment I am using this:
<select ONCHANGE="location = this.options[this.selectedIndex].value;">
it redirect me on the location inside of the option value. But it doesn't work as expected .. mean that if I click on the first option of the select, then onChange action not running. I was thinking about javascript, but I think you'll have some better suggestions guys. So how can I make it work if I click on each option it'll redirect me to the it's value?
Because the first option is already selected, the change event is never fired. Add an empty value as the first one and check for empty in the location assignment.
Here's an example:
https://jsfiddle.net/bL5sq/
<select onchange="this.options[this.selectedIndex].value && (window.location = this.options[this.selectedIndex].value);">
<option value="">Select...</option>
<option value="https://google.com">Google</option>
<option value="https://yahoo.com">Yahoo</option>
</select>
I'd strongly suggest moving away from inline JavaScript, to something like the following:
function redirect(goto){
var conf = confirm("Are you sure you want to go elswhere?");
if (conf && goto != '') {
window.location = goto;
}
}
var selectEl = document.getElementById('redirectSelect');
selectEl.onchange = function(){
var goto = this.value;
redirect(goto);
};
JS Fiddle demo (404 linkrot victim).
JS Fiddle demo via Wayback Machine.
Forked JS Fiddle for current users.
In the mark-up in the JS Fiddle the first option has no value assigned, so clicking it shouldn't trigger the function to do anything, and since it's the default value clicking the select and then selecting that first default option won't trigger the change event anyway.
Update:
The latest example's (2017-08-09) redirect URLs required swapping out due to errors regarding mixed content between JS Fiddle and both domains, as well as both domains requiring 'sameorigin' for framed content. - Albert
to make it as globally reuse function using jquery
HTML
<select class="select_location">
<option value="http://localhost.com/app/page1.html">Page 1</option>
<option value="http://localhost.com/app/page2.html">Page 2</option>
<option value="http://localhost.com/app/page3.html">Page 3</option>
</select>
Javascript using jquery
$('.select_location').on('change', function(){
window.location = $(this).val();
});
now you will able to reuse this function by adding .select_location class to any Select element class
For someone who doesn't want to use inline JS.
<select data-select-name>
<option value="">Select...</option>
<option value="http://google.com">Google</option>
<option value="http://yahoo.com">Yahoo</option>
</select>
<script type="text/javascript">
document.addEventListener('DOMContentLoaded',function() {
document.querySelector('select[data-select-name]').onchange=changeEventHandler;
},false);
function changeEventHandler(event) {
window.location.href = this.options[this.selectedIndex].value;
}
</script>
This can be archived by adding code on the onchange event of the select control.
For Example:
<select onchange="this.options[this.selectedIndex].value && (window.location = this.options[this.selectedIndex].value);">
<option value=""></option>
<option value="http://google.com">Google</option>
<option value="http://gmail.com">Gmail</option>
<option value="http://youtube.com">Youtube</option>
</select>
{{-- dynamic select/dropdown --}}
<select class="form-control m-bot15" name="district_id"
onchange ="location = this.options[this.selectedIndex].value;"
>
<option value="">--Select--</option>
<option value="?">All</option>
#foreach($location as $district)
<option value="?district_id={{ $district->district_id }}" >
{{ $district->district }}
</option>
#endforeach
</select>
<select onchange="this.options[this.selectedIndex].value && (window.location = this.options[this.selectedIndex].value);">
<option value="">Select...</option>
<option value="https://reactjs.org/">React Js</option>
<option value="https://angularjs.org/">Angular Js</option>
</select>
I want to have a drop down list using the select, option tag... but when it first appear I want it to have an information, such as "Please select a name" then the user clicks on the drop down list and selects from the available option... I tried to made the "Please select a name" as an option, but then the user will be able to select this... which is not what I want. Do I need to use javascript to have this feature or what do I need to do?
If there'a jquery way to do this, this would be much helpful
Try this:
<select>
<option value="" disabled="disabled" selected="selected">Please select a name</option>
<option value="1">One</option>
<option value="2">Two</option>
</select>
When the page loads, this option will be selected by default. However, as soon as the drop-down is clicked, the user won't be able to re-select this option.
<select>
<option value="" style="display:none">Choose one provider</option>
<option value="1">One</option>
<option value="2">Two</option>
</select>
This way the user cannot see this option, but it shows in the select box.
Have <option value="">- Please select a name -</option> as the first option and use JavaScript (and backend validation) to ensure the user has selected something other than an empty value.
This is an old post, but this worked for me
<select>
<option value="" disabled selected>Please select a name...</option>
<option>this</option>
<option>that</option>
</select>
<select name="test">
<option hidden="true">Please select a name</option>
<option value="Cash">Cash</option>
<option value="Draft">Demand Draft No.</option>
<option value="Cheque">Cheque No.</option>
</select>
Maybe this can help you resolve without JavaScript
http://htmlhelp.com/reference/html40/forms/option.html
See DISABLE option
Simple, I suppose. The onclick attribute works nicely...
<select onchange="if(this.value == '') this.selectedIndex = 1; ">
<option value="">Select an Option</option>
<option value="one">Option 1</option>
<option value="two">Option 2</option>
</select>
After a different option is selected, if the first option is selected, Option 1 will be selected. If you want an explanation on the javascript, just ask.
<select>
<option value="" disabled="disabled" selected="selected">Please select name</option>
<option value="Tom">Tom</option>
<option value="Marry">Marry</option>
<option value="Jane">Jane</option>
<option value="Harry">Harry</option>
</select>
If you want to achieve the same for the jquery-ui selectmenu control then you have to set 'display: none' in the open event handler and add '-menu' to the id string.
<select id="myid">
<option value="" disabled="disabled" selected="selected">Please select name</option>
<option value="Tom">Tom</option>
<option value="Marry">Mary</option>
<option value="Jane">Jane</option>
<option value="Harry">Harry</option>
</select>
$('select#listsTypeSelect').selectmenu({
change: function( event, data ) {
alert($(this).val());
},
open: function( event, ui ) {
$('ul#myid-menu li:first-child').css('display', 'none');
}
});
I'm sorry to necro an old post - but I found a better way of doing this
What I believe this poster wanted was :
<label for="mydropdown" datalabel="mydropdown">Country:</label>
<select name="mydropdown">
<option value="United States">United States</option>
<option value="Canada">Canada</option>
<option value="Mexico">Mexico</option>
<option value="Other">Not Listed</option>
</select>
I found this information in another post while searching for this same answer - Thanks
<select>
<option value="" disabled selected hidden>Select an Option</option>
<option value="one">Option 1</option>
<option value="two">Option 2</option>
</select>
Make a JavaScript control that before the submit cheek that the selected option is different to your first option
This is how I do this with JQuery...
using the jquery-watermark plugin (http://code.google.com/p/jquery-watermark/)
$('#inputId').watermark('Please select a name');
works like a charm!!
There is some good documentation at that google code site.
Hope this helps!
<select>
<option value="" disabled="disabled" selected="selected">Please select a
developer position</option>
<option value="1">Beginner</option>
<option value="2">Expert</option>
</select>
From what I understand, you are looking for a placeholder for your select options, which has to be selected when no value is pre-selected, and cannot be selected by user, or seen.
<select name="selectOne">
<option value="" disabled selected hidden>Choose an option</option>
<option value="this">This</option>
<option value="that">That</option>
</select>