My HTML:
<div class="check" ng-repeat="point in dbs">
<input
name="db"
id="{{point.id}}"
ng-model="point.select"
ng-click="update($index, dbs)"
ng-checked="false"
type="checkbox"
ng-required="point.select" />
</div>
Whilst my update() function looks like:
$scope.update = function(position, dbs) {
angular.forEach(dbs, function(point, index) {
if (position != index)
point.select = false;
});
}
This works as with regards to tracking what the selected checkbox is, and sending into another controller that expects the value, all is working good.
However, when I go back from the resulting page, back to this search form again, somehow the checkbox I selected before, is preselected, and I don't want anything to appear, rather just have everything blank.
Would it be as easy as simply stating:
$scope.point.select = null;
as I can't seem to find a good solution for this, so that the checkbox is always blank / not pre selected when you arrive on this form.
Let me see if I get what you are doing. It looks like you are trying to make your list of checkboxes mutually exclusive. I might look at using a radio button list (a set of radio buttons with the same name attribute, HTML interprets this as a mutually exclusive list). If you create a variable which will hold the value of the selected option and pass that value around, you probably can achieve the same result with less code. Take a look here: https://jsbin.com/sunusihuse/edit?html,js,output
As for clearing the list of controls when you revisit the page, what I have described will do that too because the value of the variable which will hold the selected value is initialized to an empty string. Hope this helps.
Related
I have a drop-down menu in a form with elements retrieved from a database. Something like this :
for($i=0;$i<count($resq);$i++){
print("<li><a class=\"dropdown-item\" href=\"#\" id=\"$i\">{$resq[$i][0]}</a></li>");
}
$resq being an array containing the result of the query (i used mysqli_fetch_all).
As you can see I tried to dynamically generate the id of the items(first item has id=0, second has id=1 and so on till the final value of $i) but I think this is not correct.
Previously, I had the following JS code(which worked) which I used to set the drop-down value to the one selected by the user and to set the value of a hidden input to that value.(I know the code isn't elegant but I just wanted to test the logic in the first place)
var x=document.getElementById('dropdownMenuButton1slct');//dropdown
var c1=document.getElementById("0");//i - categories(IDs of the dropdown elements)
var c2=document.getElementById('1');
var c3=document.getElementById('2');
var c4=document.getElementById('3');
var c5=document.getElementById('4');
var p=document.getElementById('iaval');//hidden input from form
function clic(z){
z.onclick=function () {
x.innerHTML=z.innerHTML;
p.value=x.innerHTML;
};
}
clic(c1);
clic(c2);
clic(c3);
clic(c4);
clic(c5);
But now the same method won't work. If you can, please suggest me a different way or something, I am kinda stuck. I can provide more info if this seems vague or something like that. Thanks.
I am trying to use the selected radio as a reference to it's index within its array so that I may add more children in it's sub array (using the selected radio).
So here's what I have:
<div class="fakeTableRow" ng-repeat="parent in listTable">
<div class="strcutionLeft"></div>
<!-- parent levels -->
<div class="strcutionCRight saInstrcutionTitle"><div class="parentSub1"> <input type="radio" name="levelCheckDat" ng-model="levelChecker" value="{{$index}}">{{parent.name}}</div></div>
</div>
And then outside of this (above) there is a button that when pushed calls a function, inside that function I would like a reference to the index the radio is in so I may then drop children inside. Here is my attempt at that:
$scope.submitNewSub = function(){
//get index of radio
console.log($scope.levelChecker.indexOf($scope.levelChecker));
// .....continue function with index stored
});
My assumption was that the radios are stored in their own scope, however if i simply log ($scope.levelChecker) it comes back undefined, so i believe I am thinking about this wrong, I just cannot seem to figure out how.
To be clear, I am just trying to figure out the index (in the ng-repeat) of the selected radio with the model of levelChecker. Thanks for reading!
Edit: i swapped the value of the button to the {{$index}} to see if i could pull a value off by just calling the scope
There are several questions very similar to this one yet I have been unable to come up with a solution.
I have a select list using angularJS. I need to use the title attribute so I have an ng-repeat to create the options, there is always a blank option even if I use ng-selected to always select the first option.
Even if I make a selection and the blank option goes away, if I then filter out that selected value the blank will reappear.
I have included a select list using ng-option (which does not include my needed tittle attribute) and a default value to show that the blank will appear after filter.
The behavior I desire would be to never have a blank option (always selecting first option would be fine) and to possibly have a directive per option for special handling of click events.
Thanks in Advance!
JS Fiddle: http://jsfiddle.net/32DFM/3/
<select size="3" ng-model="person.current">
<option ng-repeat="p in people | filter:person.SearchTerm"
ng-selected="$first"
value="{{p}}"
title="{{p.name}}">
{{p.name}}
</option>
</select>
I forked your fiddle (if I may be so blunt): http://jsfiddle.net/XsFe8/2/
This fixes it somewhat. Although I haven't gotten it to work properly together with the filter.
Anyway, what I do here, is to use the person.id as the value on each option.
<select ng-model="person.current">
<option ng-repeat="p in people | filter:person.SearchTerm" ng-selected="$first" value="{{p.id}}" title="{{p.name}}">
{{p.name}}
</option>
</select>
And set the initial calue on the person.current model:
$scope.person.current = $scope.people[1].id;
But it's still not 100% though. I'm a bit stumped to why the blank spaces appear when you filter the select....
An alternative that might or might not work, would be to use something like ng-repeat="p in filterPeople() and filter your array in a filterPeople function. But I'm not sure if this will change anything.
UPDATE: I tested out my suggestion above, here: http://jsfiddle.net/XsFe8/2/
If you set the selected object to be the first object in the filtered array, it works. I do this each time a new filtered array is created:
$scope.filterPeople = function () {
var array = filterFilter($scope.people, $scope.person.SearchTerm);
$scope.person.current = array[0].id;
return array;
};
It looks like things get hairy when another object than what is visible in the select is actually selected. This is kind of understandable :)
Your actual problem is the value in ngModel is referencing a value which doesn't exist in the select anymore.
A solution is to whenever you alter the select options, you also check the person.current to ensure that it points to a valid entry.
This also implies that you might want to move your filter into the controller, and set the options in the scope (you can use the $filter service in your code to get same behaviour there, https://docs.angularjs.org/api/ng/filter/filter). This way you can have a function in your controller checking if person.current is valid, and if not, set it to desired options (e.g. the first one).
the hairyness cited above is due to an empty array when all items are filtered out and is fixed by:
if(array.length>0)
$scope.person.current = array[0].id;
http://jsfiddle.net/b0z6vpr8/
Hope this helps
You can see in the paper form attached what I need to convert into a web form. I want it to show the check boxes and disable the input fields unless the user checks the box next to it. I've seen ways of doing this with one or two elements, but I want to do it with about 20-30 check/input pairs, and don't want to repeat the same code that many times. I'm just not experienced enough to figure this out on my own. Anyone know anywhere that explains how to do this? Thanks!
P.S. Eventually this data is all going to be sent through an email with PHP.
I don't think this is a good idea at all.
Think of the users. First they have to click to enter a value. So they always need to change their hand from mouse to keyboard. This is not very usable.
Why not just give the text-fields? When sending with email you could just leave out the empty values.
in your HTML :
//this will be the structure of each checkbox and input element.
<input type="checkbox" value="Public Relations" name="skills" /><input type="text" class="hidden"/> Public Relations <br/>
in your CSS:
.hidden{
display:none;
}
.shown{
display:block;
}
in your jQuery:
$('input[type=checkbox]').on('click', function () {
// our variable is defined as, "this.checked" - our value to test, first param "shown" returns if true, second param "hidden" returns if false
var inputDisplay = this.checked ? 'shown' : 'hidden';
//from here, we just need to find our next input in the DOM.
// it will always be the next element based on our HTML structure
//change the 'display' by using our inputDisplay variable as defined above
$(this).next('input').attr('class', inputDisplay );
});
Have fun.
Since your stated goal is to reduce typing repetitive code, the real answer to this thread is to get an IDE and the zen-coding plug in:
http://coding.smashingmagazine.com/2009/11/21/zen-coding-a-new-way-to-write-html-code/
http://vimeo.com/7405114
I have 50 rows of data and i want users to give them points by 1 to 50. I put dropdown boxes near them with options 1/50. But all i want is when a user selects 15(for example) for a row, 15 will be deleted from all other select tags of other rows. I am not as good as you in JavaScript. How can i accomplish this?
Hi casablanca i couldnt make he script you sent work. I need it to work on just one select tag so i give select tag an ID and an ID for the form too. I edit the scripts getElementsByTagName with getElementsByTagID (select tag's ID) to effect only one select tag. But the function doesnt triggered?
This might not be a very good idea, because it is very difficult for the user to modify choices -- for example, if I want to give 15 to a different option, I need to change the old one to something else and then change the new one to 15. Also, once all points have been assigned, it's impossible to make any changes because all options are gone.
A better idea would be to let the user do whatever he/she wants and then validate the form in the end. You could do that like this:
function validate() {
var used = []; // This array stores already used options
var rows = document.getElementById('myForm').getElementsByTagName('select');
for (var i = 0; i < rows.length; i++) {
var points = rows[i].value;
if (used[points]) {
// This value was already used
alert('Please choose a different value.');
rows[i].focus();
return false;
} else {
// This value was not used before; mark it as used now
used[points] = true;
}
}
return true;
}
And call this function in the onsubmit handler of your form:
<form id="myForm" onsubmit="return validate();">
EDIT1: id -> class
give each option the class of the number it is
<option class="15">15</option>
<option class="16">16</option>
etc.
Then jquery can remove() an item by class
$('.15').remove();
obviously have to do an on change and get the value just set. "remove()" is nice in this instance because I believe it will yank every instance of that class.
EDIT3: upon further consideration the above method would be further complicated by the need to not remove the "selected" option. Not going to figure out the exact method but I think changing the class from "15" to "selected15" with a $(this).append() or something of the sort before calling the remove would get the job done fairly safely.
EDIT2:
As noted by casblanca below this is not an ideal user interface at all for this type of input. You may want to look into this: http://www.utdallas.edu/~jrb048000/ListReorder/
Allows user to drag and drop items in a list to reorder them. Much more natural.