I'm trying to make sure that the user is not selecting the default of a drop down method by determining the index number selected. It seems to be only returning false even though I believe the code is correct... So far I have the code listed below but its not working, any ideas?
<p id="Gender">
<label for="Gender">Gender: </label>
<select required>
<option disabled selected value="Select">Select</option>
<option value="Male">Male</option>
<option value="Female">Female</option>
</select>
</p>
function validate1() {
valCheck3 = true;
var dropD1 = document.getElementById("Gender");
var resultSelect = dropDown1(dropD1);
var image3 = getImage(Boolean(resultSelect), "gender");
var labelGender = getNotification3(Boolean(resultSelect), "gender");
document.getElementById("Gender").appendChild(image3);
document.getElementById("Gender").appendChild(labelGender);
}
function dropDown1(select){
if(select.selectedIndex > 0){
return true;
}
valCheck3 = false;
return false;
}
EDIT: I added the HTML I used the setting to make the answer required, the problem is I need to have a button that checks whether the answer has been selected to insert an image next to the box. So in this case I figured I could determine the selected index number of the drop down so that I could determin
You can add the required attribute to the select element, then add some value attribute to each option except for the first one (use value without the value itself i.e. value="1")
Then you can just use select.checkValidity(), which returns true or false.
I'm trying to make sure that the user is not selecting the default of a drop down
You can just add disabled attribute to the <option> and also make it default. If the user opens the dropdown, the default option can not be clicked anymore and the user has to choose an onther option.
Example:
<form action="">
<select required>
<option disabled selected value>Default option</option>
<option>Option 1</option>
<option>Option 2</option>
<option>Option 3</option>
</select>
<input type="submit">
</form>
Related
I have an inventory form which I have been asked to improve. The user counts product and enters the new count into the form. Then, depending on whether the input is positive or negative, a select box appears with the list of reasons for the discrepancy. The UI is working perfectly, but the reason code will only pass for whichever select element is listed last.
Basically this works to ensure the user is entering negatives correctly so my default is to have the SELECT element for the negative reason second since it will be the one to work. I would appreciate any suggestions for a better approach.
$(document).ready(function () {
if ($("#invAmt").val()=='') {
$("#plus").hide();
$("#minus").hide();
}
//return false;
$(document).on('change', '#invAmt', function() {
if ($("#invAmt").val()>='1') {
$("#plus").show();
$("#minus").hide();
} else {
$("#plus").hide();
$("#minus").show();
}
});
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="form-group">
<label for="invDec">Enter Amount of Units to Adjust (+/-): </label>
<input name="invAmt" id="invAmt" style="width:50px" >
</div>
<label for="title">Reason for Adjustment:</label>
<div class="plus">
<select class="custom-select custom-select-md" name="reason" id="plus" style="width:370px">
<option value="">--- Select Reason ---</option>
<option value="30">Returned Product</option>
<option value="50">Other (explain in notes)</option></select>
</div>
<div class="minus">
<select class="custom-select custom-select-md" name="reason" id="minus" style="width:370px">
<option value="">--- Select Reason ---</option>
<option value="70">Recount (lost)</option>
<option value="75">Dumped / Died)</option>
<option value="90">Diseased / Pest</option>
<option value="65">Overgrown</option>
<option value="95">Overstock</option>
<option value="98">Loaned Out</option>
<option value="100">Other (explain in notes)</option></select>
</div>
if you want to select multiple options from your drop downs you need to add the "multiple" attribute to your two select statements. Like this:
<select class="custom-select custom-select-md" multiple name="reason" id="plus" style="width:370px">
also, you need to add a submit button.
If you are trying to get just one option for + and one option for - you need to use different names for each of your select boxes. If they are both name='reason' the last one will overwrite the first one. Try:
name='negReason'
name='posReason'
I'm not familiar with javascript and jQuery and I'm asking you.
I would like the code of a product to be selected, once I have selected it from the select dropdown, I click the button and it should add the value in an input box text, that I have created, so that I can also accumulate more codes of more products.
Keep in mind that once the button is clicked, the same value is no longer added indefinitely but that it is possible to choose another code and add it next to the one already present in the input text.
I don't know if it is more practical to use the <input type = "submit"> tag instead of the button tag to send or in this case transfer the selected text from the select to a text form.
You would save my life if you could please complete this action for me with javascript or jQuery :)
<select class="select" id="select-code">
<option value="">Select a code</option>
<option value="value1">Code 1</option>
<option value="value2">Code 2</option>
<option value="value3">Code 3</option>
<option value="value4">Code 4</option>
</select>
<button id="code-btn">submit to form</button>
<input name="my-quote" type="text" placeholder="code1,code2...">
First of all, it seems that you are complete beginner. so you should learn DOM api to learn how to manipulate the window.
Anyway here is the code to do so which you want;
document.getElementById('code-btn').onclick = () => {
let e = document.getElementById('select-code');
document.getElementById('input').value = e.options[e.selectedIndex].text;
}
<select class="select" id="select-code">
<option value="">Select a code</option>
<option value="value1">Code 1</option>
<option value="value2">Code 2</option>
<option value="value3">Code 3</option>
<option value="value4">Code 4</option>
</select>
<button id="code-btn">submit to form</button>
<input id='input' name="my-quote" type="text" placeholder="code1,code2...">
document.getElementById('code-btn') gets the element with id 'code-btn'. As that is a button, we can use onclick property which will will take a function and that function will be called when it is clicked.
Inside that function, i am simply getting the input field and setting its value to the text of the selected option from dropdown.
I think the code here is self-documented.
This isn't a direct answer to your question, but an alternative solution. If possible for your situation, I would consider using <select multiple>: the select tag with the "multiple" attribute. It's a native HTML feature that allows the user to select multiple options from the list. I don't know how you're submitting the form data, but if using a <form> tag then the form's data will include which values have been selected.
Tutorial about select multiple
<label for="select-code">Select a code</label>
<select class="select" id="select-code" multiple>
<option value="value1">Code 1</option>
<option value="value2">Code 2</option>
<option value="value3">Code 3</option>
<option value="value4">Code 4</option>
</select>
<button id="code-btn">submit to form</button>
<input id='input' name="my-quote" type="text" placeholder="code1,code2...">
This is actually very simple and might be used as beginers excercise, so I'm gonna give you a brief walkthrough of how I would solve it:
register button onClick event
read selected value
add it to the placeholder attribute
so something like this (not tested at all)
//button click event
$("#code-btn").click(function (event) {
//in element #select-code
var textToAdd = $('#select-code')
//find element with pseudo selector :selected
.find(":selected")
//get its inner text
.text();
//check if input already contains the text here, if not
if (!$("input").attr("placeholder").includes(textToAdd)) {
//into input element
$("input")
//into attribute placehoder
.attr("placeholder",
//insert original text //insert colon //insert new text
$("input").attr("placeholder") + ", " + textToAdd)
}
});
function myFunction() {
var newText = document.getElementById('select-code').value
var input = document.getElementById('my-quote')
if (input.value == '') input.value = newText
else input.value = input.value + ', ' + newText
}
<select class="select" id="select-code" onchange='myFunction()'>
<option value="">Select a code</option>
<option value="Code 1">Code 1</option>
<option value="Code 2">Code 2</option>
<option value="Code 3">Code 3</option>
<option value="Code 4">Code 4</option>
</select>
<button id="code-btn">submit to form</button>
<input id="my-quote" type="text" placeholder="code1,code2...">
I have the following code
<select class="needsclick" id="country" name="order[country]">
<option value="USA" selected="selected">USA</option>
<option value="CANADA">CANADA</option>
</select>
I could do the following javascript command to change the option value
document.getElementById("country").value = 'CANADA'
however, this does not change the selected value and does not change the state box to province.
When I physically click this dropdown menu and change to CANADA, the effects of the change take place (the state box changes to province)
I am using Swift iOS to parse HTML and wondering what line of javascript code is needed to click a option value rather than changing the option value?
If I do the following after changing the value
document.getElementById("country").click()
it just clicks the menu but still does not change the state box to province (happens when physically clicking the option value)
How can I achieve this using a javascript command like the two above?
The state/province box is irrelevant to the code just relevant to the fact it changes when the dropdown is physically clicked and not when programmatically changed.
I can do the following code but it still does not change the state box to province (only if physically clicked)
document.getElementById("country")[1].selected = true
To work with the option elements within a select, you must access the options node list and then select one to work with.
Setting the value is separate from setting the selected flag.
var countries = document.getElementById("country");
var states = document.getElementById("provincesUSA");
var territories = document.getElementById("provincesCanada");
countries.addEventListener("change", function(e) { update(e); });
function update(e){
// show the correct sub-list based on the selected option
var country = countries[countries.selectedIndex];
if(country.value === "USA"){
states.classList.remove("hidden");
territories.classList.add("hidden");
} else if(country.value === "CANADA") {
territories.classList.remove("hidden");
states.classList.add("hidden");
} else {
territories.classList.add("hidden");
states.classList.add("hidden");
}
}
// To dynamically choose
document.querySelector("button").addEventListener("click", function(){
countries.options[2].selected = "selected"; // Canada
// Simulate the change event
update(countries);
});
#provincesUSA.hidden, #provincesCanada.hidden { display:none; }
<select class="needsclick" id="country" name="order[country]">
<option value="" selected="selected">Choose A Country</option>
<option value="USA">USA</option>
<option value="CANADA">CANADA</option>
</select>
<select id="provincesUSA" class="hidden" name="states">
<option value="al">Alabama</option>
<option value="ar">Arkansas</option>
</select>
<select id="provincesCanada" class="hidden" name="territories">
<option value="on">Ontario</option>
<option value="qu">Quebec</option>
</select>
<button>Force A Selection (click me whe CANADA is NOT selected)</button>
document.getElementById("country").selectedIndex = 2;
I would like to watch on select tag with ng-repeat and disable the save button.I have a set up like this.
Initially i will have three select boxes with values, where user has to select at least one select value out of three boxes to get Save btn enabled
user will also have a provision to add more select boxes.
Now,how do i watch the select boxes,if we have 5 select boxes -how can we watch all of them and enable/disable the Save button ,if none got selected.
Here is a fiddle link..similar to my situation: Js fiddle
Please help me!!
Well, you can put all the selects inside a form and set them as required.
In the button, you valid the ng-disabled tag if de form is $invalid.
Example:
<ng-form name="selectForm">
<select class="form-control" ng-model="item.name" name="select" ng-required="true">
<option>Select a campus</option>
<option>Campus 1</option>
<option>Campus 2</option>
<option>Campus 3</option>
</select>
<button type="submit" ng-disabled="selectForm.$invalid">Save</button>
</ng-form>
You can use the same object as model for all ng-selects:
$scope.selectedValues = {};
Then each select box inside ng-repeat will use as model different object property:
<select class="form-control" ng-model="selectedValues['campus_' + $index]">
<option>Select a campus</option>
<option>Campus 1</option>
<option>Campus 2</option>
<option>Campus 3</option>
</select>
To check whether all values are filled you'll watch the selectedValues for changes with last parameter set to true:
$scope.$watch('selectedValues', function(newValue, oldValue) {
// Check whether all values in $scope.selectedValues are filled
var allFilled = true;
angular.forEach($scope.selectedValues, function(value, key) {
if (!value) {
allFilled = false;
}
});
if (allFilled) {
// enable button
} else {
// disable button
}
}, true);
The last parameter true is essential because it tells Angular to compare all values in the object. See https://docs.angularjs.org/api/ng/type/$rootScope.Scope.
First off sorry for a re-post, I voted to delete my old post because I'm asking for help on the code now, not just which way is the better route. Any my code has changed several times
On my page there is a drop down to select a country, dynamically loaded from a db. Once the user selects a country two things can happen. 1) If they select Canada or the US a second drop-down appears and the user can select a region. 2) If the user selects any other country it creates an input box so that the user can type the region instead. This all works fine.
Now there is a third input which takes the province/state value so it can be posted. There are only two of us who will use this form so I'm not worried about JavaScript being turned off in the browser.
My issue is that when the user first selects the Canada/US and a region, nothing is filled into the third input unless they change the country selection. However, if they select a country other than Canada/US and have to type the region, it works as expected.
Here is an example of the issue: http://jsfiddle.net/owalsh/BQXZA/3/
If anyone can tell me why I'd appreciate it, thanks
Working here: http://jsfiddle.net/5A4v4/11/
HTML:
<form id="customer_bill_add_post" name="customer_bill_add_post">
<select id="country" name="country">
<option value="0">Select a country</option>
<option value="CA">Canada</option>
<option value="US">United States</option>
<option value="OT">Other</option>
</select>
<select id="province_select" name="province_select">
<option value="0">Select a Province</option>
<option value="AB">Alberta</option>
<option value="AL">Alabama</option>
</select>
<input type="text" id="province_input" name="province_input">
<input type="text" id="province" name="province" />
</form>
Jquery: code (there was some extra change event binding going on) you can prettify it.
$(function(){
//initially hide the textbox
$("#province_input").hide();
$("#province_select").hide();
$('#country').change(function() {
if($(this).find('option:selected').val() == "CA"){
$("#province_select").show();
$("#province_input").hide();
} else if($(this).find('option:selected').val() == "US"){
$("#province_select").show();
$("#province_input").hide();
} else {
$("#province_input").show();
$("#province_select").hide();
}
});
$('#country, #province_select, #province_input').bind("change", function() {
if($('#country').find('option:selected').val() == "CA"){
document.customer_bill_add_post.province.value = document.customer_bill_add_post.province_select.value;
} else if($('#country').find('option:selected').val() == "US"){
document.customer_bill_add_post.province.value = document.customer_bill_add_post.province_select.value;
} else {
//alert('foo');
document.customer_bill_add_post.province.value = document.customer_bill_add_post.province_input.value;
}
});
});
Cheers,