I tried googling this but I am getting only on event trigger searches instead of what I am looking for.
I want to dynamically click on any of the options in the select dropdown by using the value or the text if possible.
HTML
<select id="certainspamselectid" name="certainspamselect" style="margin-left: 165px;">
<option value="0">permanently deleted</option>
<option value="4">moved to admin quarantine</option>
<option value="1">moved to junk email folder</option>
<option value="5">delivered to inbox with tag</option>
<option value="2">delivered to inbox</option>
</select>
I am not sure if I need to use something with $("#certainspamselectid").click..... but I am not sure what to use after click. I would have tried more things but my google searches keep pinpointing me for on event triggers when I just want to click on one of these options using either JS or jQuery.
I have read your problem and honestly, I can't understand what you want exactly.
However, it looks like you want to select some certain option of the select dropdown.
If that's right, you don't need to call some kind of click function.
You can do it easily with jQuery.
For example, imagine that you are going to select third option - "moved to junk email folder". Then you can select it by code like below.
$("#certainspamselectid").val(1);
If my answer is not enough for you, let me know detail of your problem.
With <select> what you need is .change instead of .click
Here is a quick example .. change the $value and check again
$("#certainspamselectid").on('change' , function(){
console.log("Value Changed To: "+$(this).val());
if($(this).val() == 5){
console.log("value 5 is selected");
}
});
let $value = 4;
$("#certainspamselectid").val($value).change();
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<select id="certainspamselectid" name="certainspamselect" style="margin-left: 165px;">
<option value="0">permanently deleted</option>
<option value="4">moved to admin quarantine</option>
<option value="1">moved to junk email folder</option>
<option value="5">delivered to inbox with tag</option>
<option value="2">delivered to inbox</option>
</select>
why don't you simply change the value of the select like this
$("#certainspamselectid").val(4)
It will automatically show the text from the selected option
I don't think that clicking on an option would help you
Any solution need only work in WebKit browsers.
The internet is littered with attempts to make this work - some who claim to have it working and some who claim it can't be done. In my experience, none of the suggested methods have worked. Is this simply impossible?
Supposing I have a select like <select id="mySelect" />
Things I've tried:
select::before -- Is added to the DOM, but doesn't render
<label for="mySelect" /> -- Does nothing when clicked/tapped
document.querySelector('select').click() -- Does nothing
The method from this answer (React-specific) -- Cannot assign a click handler or any other handler that can programmatically open the select to begin with
I'm open even to a jQuery solution, even though we're using React and we would be loading jQuery solely for triggering the select to open.
On third party select components: The goal is to trigger the mobile OS's native select control for the user, so something like React-Select is not suitable.
A dirty solution updated from here (https://stackoverflow.com/a/249219/3684265)
var _select = document.getElementById("test");
_select.addEventListener("mouseout",function(){
this.size = 1;
});
_select.addEventListener("mouseover",function(){
this.size = 4;//set to show the number that you want
});
<select id="test">
<option value="1">1</option>
<option value="1">2</option>
<option value="1">3</option>
<option value="1">4</option>
<option value="1">5</option>
<option value="1">6</option>
</select>
I have a drop-down list with known values. What I'm trying to do is set the drop down list to a particular value that I know exists using jQuery.
Using regular JavaScript, I would do something like:
ddl = document.getElementById("ID of element goes here");
ddl.value = 2; // 2 being the value I want to set it too.
However, I need to do this with jQuery, because I'm using a CSS class for my selector (stupid ASP.NET client ids...).
Here are a few things I've tried:
$("._statusDDL").val(2); // Doesn't find 2 as a value.
$("._statusDDL").children("option").val(2) // Also failed.
How can I do it with jQuery?
Update
So as it turns out, I had it right the first time with:
$("._statusDDL").val(2);
When I put an alert just above it works fine, but when I remove the alert and let it run at full speed, I get the error
Could not set the selected property. Invalid Index
I'm not sure if it's a bug with jQuery or Internet Explorer 6 (I'm guessing Internet Explorer 6), but it's terribly annoying.
jQuery's documentation states:
[jQuery.val] checks, or selects, all the radio buttons, checkboxes, and select options that match the set of values.
This behavior is in jQuery versions 1.2 and above.
You most likely want this:
$("._statusDDL").val('2');
Add .change() to see the option in the dropdown list frontend:
$("._statusDDL").val('2').change();
With hidden field you need to use like this:
$("._statusDDL").val(2);
$("._statusDDL").change();
or
$("._statusDDL").val(2).change();
These solutions seem to assume that each item in your drop down lists has a val() value relating to their position in the drop down list.
Things are a little more complicated if this isn't the case.
To read the selected index of a drop down list, you would use this:
$("#dropDownList").prop("selectedIndex");
To set the selected index of a drop down list, you would use this:
$("#dropDownList").prop("selectedIndex", 1);
Note that the prop() feature requires JQuery v1.6 or later.
Let's see how you would use these two functions.
Supposing you had a drop down list of month names.
<select id="listOfMonths">
<option id="JAN">January</option>
<option id="FEB">February</option>
<option id="MAR">March</option>
</select>
You could add a "Previous Month" and "Next Month" button, which looks at the currently selected drop down list item, and changes it to the previous/next month:
<button id="btnPrevMonth" title="Prev" onclick="btnPrevMonth_Click();return false;" />
<button id="btnNextMonth" title="Next" onclick="btnNextMonth_Click();return false;" />
And here's the JavaScript which these buttons would run:
function btnPrevMonth_Click() {
var selectedIndex = $("#listOfMonths").prop("selectedIndex");
if (selectedIndex > 0) {
$("#listOfMonths").prop("selectedIndex", selectedIndex - 1);
}
}
function btnNextMonth_Click() {
// Note: the JQuery "prop" function requires JQuery v1.6 or later
var selectedIndex = $("#listOfMonths").prop("selectedIndex");
var itemsInDropDownList = $("#listOfMonths option").length;
// If we're not already selecting the last item in the drop down list, then increment the SelectedIndex
if (selectedIndex < (itemsInDropDownList - 1)) {
$("#listOfMonths").prop("selectedIndex", selectedIndex + 1);
}
}
My site is also useful for showing how to populate a drop down list with JSON data:
http://mikesknowledgebase.com/pages/Services/WebServices-Page8.htm
Just an FYI, you don't need to use CSS classes to accomplish this.
You can write the following line of code to get the correct control name on the client:
$("#<%= statusDDL.ClientID %>").val("2");
ASP.NET will render the control ID correctly inside the jQuery.
Just try with
$("._statusDDL").val("2");
and not with
$("._statusDDL").val(2);
After looking at some solutions, this worked for me.
I have one drop-down list with some values and I want to select the same value from another drop-down list... So first I put in a variable the selectIndex of my first drop-down.
var indiceDatos = $('#myidddl')[0].selectedIndex;
Then, I select that index on my second drop-down list.
$('#myidddl2')[0].selectedIndex = indiceDatos;
Note:
I guess this is the shortest, reliable, general and elegant solution.
Because in my case, I'm using selected option's data attribute instead of value attribute.
So if you do not have unique value for each option, above method is the shortest and sweet!!
I know this is a old question and the above solutions works fine except in some cases.
Like
<select id="select_selector">
<option value="1">Item1</option>
<option value="2">Item2</option>
<option value="3">Item3</option>
<option value="4" selected="selected">Item4</option>
<option value="5">Item5</option>
</select>
So Item 4 will show as "Selected" in the browser and now you want to change the value as 3 and show "Item3" as selected instead of Item4.So as per the above solutions,if you use
jQuery("#select_selector").val(3);
You will see that Item 3 as selected in browser.But when you process the data either in php or asp , you will find the selected value as "4".The reason is that , your html will look like this.
<select id="select_selector">
<option value="1">Item1</option>
<option value="2">Item2</option>
<option value="3" selected="selected">Item3</option>
<option value="4" selected="selected">Item4</option>
<option value="5">Item5</option>
</select>
and it gets the last value as "4" in sever side language.
SO MY FINAL SOLUTION ON THIS REGARD
newselectedIndex = 3;
jQuery("#select_selector option:selected").removeAttr("selected");
jQuery("#select_selector option[value='"+newselectedIndex +"']").attr('selected', 'selected');
EDIT: Add single quote around "+newselectedIndex+" so that the same functionality can be used for non-numerical values.
So what I do is actually ,removed the selected attribute and then make the new one as selected.
I would appreciate comments on this from senior programmers like #strager , #y0mbo , #ISIK and others
If we have a dropdown with a title of "Data Classification":
<select title="Data Classification">
<option value="Top Secret">Top Secret</option>
<option value="Secret">Secret</option>
<option value="Confidential">Confidential</option>
</select>
We can get it into a variable:
var dataClsField = $('select[title="Data Classification"]');
Then put into another variable the value we want the dropdown to have:
var myValue = "Top Secret"; // this would have been "2" in your example
Then we can use the field we put into dataClsField, do a find for myValue and make it selected using .prop():
dataClsField.find('option[value="'+ myValue +'"]').prop('selected', 'selected');
Or, you could just use .val(), but your selector of . can only be used if it matches a class on the dropdown, and you should use quotes on the value inside the parenthesis, or just use the variable we set earlier:
dataClsField.val(myValue);
So I changed it so that now it
executes after a 300 miliseconds using
setTimeout. Seems to be working now.
I have run into this many times when loading data from an Ajax call. I too use .NET, and it takes time to get adjusted to the clientId when using the jQuery selector. To correct the problem that you're having and to avoid having to add a setTimeout property, you can simply put "async: false" in the Ajax call, and it will give the DOM enough time to have the objects back that you are adding to the select. A small sample below:
$.ajax({
type: "POST",
url: document.URL + '/PageList',
data: "{}",
async: false,
contentType: "application/json; charset=utf-8",
dataType: "json",
success: function (response) {
var pages = (typeof response.d) == 'string' ? eval('(' + response.d + ')') : response.d;
$('#locPage' + locId).find('option').remove();
$.each(pages, function () {
$('#locPage' + locId).append(
$('<option></option>').val(this.PageId).html(this.Name)
);
});
}
});
I use an extend function to get client ids, like so:
$.extend({
clientID: function(id) {
return $("[id$='" + id + "']");
}
});
Then you can call ASP.NET controls in jQuery like this:
$.clientID("_statusDDL")
Another option is to set the control param ClientID="Static" in .net and then you can access the object in JQuery by the ID you set.
<asp:DropDownList id="MyDropDown" runat="server" />
Use $("select[name$='MyDropDown']").val().
Just a note - I've been using wildcard selectors in jQuery to grab items that are obfuscated by ASP.NET Client IDs - this might help you too:
<asp:DropDownList id="MyDropDown" runat="server" />
$("[id* = 'MyDropDown']").append("<option value='-1'> </option>"); //etc
Note the id* wildcard- this will find your element even if the name is "ctl00$ctl00$ContentPlaceHolder1$ContentPlaceHolder1$MyDropDown"
How are you loading the values into the drop down list or determining which value to select? If you are doing this using Ajax, then the reason you need the delay before the selection occurs could be because the values were not loaded in at the time that the line in question executed. This would also explain why it worked when you put an alert statement on the line before setting the status since the alert action would give enough of a delay for the data to load.
If you are using one of jQuery's Ajax methods, you can specify a callback function and then put $("._statusDDL").val(2); into your callback function.
This would be a more reliable way of handling the issue since you could be sure that the method executed when the data was ready, even if it took longer than 300 ms.
<asp:DropDownList ID="DropUserType" ClientIDMode="Static" runat="server">
<asp:ListItem Value="1" Text="aaa"></asp:ListItem>
<asp:ListItem Value="2" Text="bbb"></asp:ListItem>
</asp:DropDownList>
ClientIDMode="Static"
$('#DropUserType').val('1');
In my case I was able to get it working using the .attr() method.
$("._statusDDL").attr("selected", "");
Pure JS
For modern browsers using CSS selectors is not a problem for pure JS
document.querySelector('._statusDDL').value = 2;
function change() {
document.querySelector('._statusDDL').value = 2;
}
<select class="_statusDDL">
<option value="1" selected>A</option>
<option value="2">B</option>
<option value="3">C</option>
</select>
<button onclick="change()">Change</button>
If we want to find from the option name and then selected options with the jQuery please see below code:-
<div class="control">
<select name="country_id" id="country" class="required-entry" title="Country" data-validate="{'validate-select':true}" aria-required="true">
<option value=""> </option>
<option value="SA">Saudi Arabia</option>
<option value="AF">Afghanistan</option>
<option value="AR">Argentina</option>
<option value="AM">Armenia</option>
<option value="AW">Aruba</option>
<option value="AU">Australia</option>
<option value="AT">Austria</option>
<option value="IS">Iceland</option>
<option value="IN">India</option>
<option value="ID">Indonesia</option>
<option value="IR">Iran</option>
<option value="IQ">Iraq</option>
<option value="IE">Ireland</option>
<option value="IM">Isle of Man</option>
<option value="IL">Israel</option>
<option value="IT">Italy</option>
<option value="JM">Jamaica</option>
<option value="JP">Japan</option>
<option value="JE">Jersey</option>
<option value="JO">Jordan</option>
<option value="AE">United Arab Emirates</option>
<option value="GB">United Kingdom</option>
<option value="US" selected="selected">United States</option>
</select>
</div>
<script type='text/javascript'>
let countryRegion="India";
jQuery("#country option:selected").removeAttr("selected");
let cValue= jQuery("#country option:contains("+countryRegion+")").val();
jQuery("#country option[value='"+cValue +"']").attr('selected', 'selected');
</script>
I hope this will help!
I'm new using angularjs and the angular user interface. I'm interested in the tag.
This is my html:
<select id="part1" ui-select2 ng-model="params.id" style="width: 200px;">
<option value="">Provinsi</option>
<option ng-repeat="v in prov" value="{{v.id}}" title="{{v.text}}"
ng-selected="v.id == params.id">{{v.text}}</option>
</select>
<select id="part2" ui-select2 ng-model="params2.id" style="width: 200px;" ng-disabled="true">
<option value="">Kabupaten</option>
<option ng-repeat="y in kab" value="{{y.id}}" title="{{y.text}}"
ng-selected="y.id == params.id">{{y.text}}</option>
</select>
and this my app.js :
$http.get('json/provinsiData.json').success(function(datax) {
$scope.prov = datax;
});
//part2 data
$http.get('json/acehData.json').success(function(datay) {
$scope.kab = datay;
});
$scope.params = {}
$scope.params2 = {}
As you can see select part2 is disabled.
How can I create an event change that works like the condition below?
if selected option of part1 is index 0
then select part2 disabled = false and load json part2 data.
The angular-js select supports the ng-change attribute which may call any javascript method defined in scope.
Example:
However your best bet may be just to evaluate an $scope expression in your ng-disabled= attribute, e.g. ng-disabled="params.id == 'X'".
With Angular, we usually aren't looking for events to trigger changes. Instead, when the model changes, the view should update to reflect those changes.
In this case, the second element should be enabled (not disabled) depending on a value in the model. When the model value connected to the first select menu satisfies some condition, enable the second menu. Yes, technically there's an event, but we don't need to care about it, all that matters are the model's values.
Here's a simplified example of how this might work:
<select ng-model="selection.item">
<option value="">Clothing</option>
<option ng-repeat="item in clothes">{{ item }}</option>
</select>
<select ng-model="selection.size" ng-disabled="!selection.item">
<option value="">Size</option>
<option ng-repeat="size in sizes">{{ size }}</option>
</select>
The second select menu's ng-disabled attribute is a simple expression which basically evaluates to "disable me if selection.item does not have a value". That could just as easily be a more complex expression or a function.
Here's a plunkr based on the code above
I have two options in a combo box.
<select id="selLang">
<option value="/en" >english</option>
<option value="/fr" >french</option>
</select>
When i choose the second option the page is refreshed and the selected option isn't displayed in the top of the combo box (i mean, as the selected item.)
I want to set the selected option to be the selected option which is in the top of the combo box- within the view.
so my question is just how can i do it? or maybe i have to create a cookie? and if so -how do i do t-h-a-t?
Perhaps it's a silly question, but i'm quite new in this region.
Thanks in advance!
you need to set the selected attribute of the option. you can do it as follows:
<select id="selLang">
<option value="en" >english</option>
<option value="fr" selected="selected" >french</option>
</select>
Hope this is what you wanted..
see this
I'd recommend you taking a look at the ASP.NET MVC localization guide which will provide you with some nice ideas about how to implement this.
First, why when you choose the second option, the page is refreshed. Do you have any JavaScript function in action to post your form.
I ask that, because HTML <select> tag's change won't initiate an HTTP Post request. So, please update an explanation for that.
However, let's go back to your question. You can try this:
<select id='selLang' name='selLang'>
<option value="/en" >english</option>
<option value="/fr" >french</option>
</select>
This will cause the <select> tag to become a successful control during a POST request. This means that you can use this to create a script like:
$(function(){
$('#selLang').val('#HttpContext.Request["selLang"]');
});