I'm very new into frontend, so I appreciate any help.
I'm trying to build a form, where user select an option from element and then depending on condition, dynamically generates another one (and some other inputs) as a child elements.
Finally what I'm trying to get is JSON with nested structure. E.g.
fields: [{type: 'List', value: [{type: 'Map', value: [{type: 'Integer', value: 5}, {type: 'List', value: [and so on...]]]}]
I have already started to code it in native JS and this is what I have so far (snippet below).
I want to release something similar with VUE.js library (or maybe someone can tell me any other useful libraries), cuz I want to control visibility of my inputs based on some conditions and some other useful features...but I dont know how to dynamically push elements into nested into nested and so on...I appriciate any help, any ideas and any examples. Thanks!
let template = `
<select name="type" onChange="createChildElement(this)" aria-label="Select type">
<option value="List">Select type</option>
<option value="List">List</option>
<option value="Map">Map</option>
<option value="Integer">Integer</option>
</select>
<select name="method" aria-label="Метод генерации">
<option value="Static">Static</option>
<option value="Random">Random</option>
<option value="Range">Range</option>
</select>
<input name="size" type="text" placeholder="Size">
<input name="value" type="text" placeholder="Value">
`;
function createChildElement(e) {
if(e.value == "List") {
var x = document.createElement('ul');
var z = document.createElement('li');
z.insertAdjacentHTML( 'beforeend', template );
x.appendChild(z);
e.parentNode.appendChild(x);
}
if(e.value == "Map") {
var x = document.createElement('ul');
var z = document.createElement('li');
z.insertAdjacentHTML( 'beforeend', template );
x.appendChild(z);
var y = document.createElement('ul');
var n = document.createElement('li');
n.insertAdjacentHTML( 'beforeend', template );
y.appendChild(n);
e.parentNode.appendChild(x);
e.parentNode.appendChild(y);
}
}
<body>
<div id="main-container">
<ul><li><div class="singleton-card ml-2">
<select name="type" onChange="createChildElement(this)" aria-label="Select type">
<option value="List">Select type</option>
<option value="List">List</option>
<option value="Map">Map</option>
<option value="Integer">Integer</option>
</select>
<select name="method" aria-label="Метод генерации">
<option value="Static">Static</option>
<option value="Random">Random</option>
<option value="Range">Range</option>
</select>
<input name="size" type="text" placeholder="Size">
<input name="value" type="text" placeholder="Value">
</div></li></ul>
</div>
</body>
I just found this example (https://codesandbox.io/s/github/vuejs/vuejs.org/tree/master/src/v2/examples/vue-20-tree-view?from-embed), I want to build something similar, but as a form with selects and inputs (just like my snippet example).
If I understand correctly, you're trying to create dependent dropdowns. You can check the following codepen for creating a dependent dropdown in vue.js
https://codepen.io/adnanshussain/pen/KqVxXL
JS
var model_options = {
1: [{ text: "Accord", id: 1 }, { text: "Civic", id: 2 }],
2: [{ text: "Corolla", id: 3 }, { text: "Hi Ace", id: 4 }],
3: [{ text: "Altima", id: 5 }, { text: "Zuke", id: 6 }],
4: [{ text: "Alto", id: 7 }, { text: "Swift", id: 8 }]
};
var makes_options = [
{ text: "Honda", id: 1 },
{ text: "Toyota", id: 2 },
{ text: "Nissan", id: 3 },
{ text: "Suzuki", id: 4 }
];
var vm_makes = new Vue({
el: "#app",
data: {
make: null,
model: null,
makes_options: makes_options,
model_options: model_options,
},
watch: {
make: function(event) {
$('#vehicle-models').dropdown('clear');
}
}
});
$('.ui.dropdown').dropdown();
HTML
<div id="app" class="ui grid">
<div class="row">
<div class="column">
<div class="ui label">Vechicle Make</div>
<select class="ui dropdown" v-model="make" id="vehicle-makes">
<option v-for="option in makes_options" v-bind:value="option.id">
{{ option.text }}
</option>
</select>
</div>
</div>
<div class="row">
<div class="column">
<div class="ui label">Vechicle Model</div>
<select class="ui dropdown" id="vehicle-models" v-model="model">
<option
v-for="option in model_options[make]"
:value="option.id"
:key="option.id"
>
{{ option.text }}
</option>
</select>
</div>
</div>
</div>
Related
I'm having a list of items in an array with its prices. The list of items must be displayed in a dropdown. When one is selected, I want its corresponding price to be placed into a text box called price.
JS:
function PopulateDropDownList() {
var products = [
{ productId: 1, name: "Fanta", price: "4" },
{ productId: 2, name: "Coke", price: "2" },
{ productId: 3, name: "Sprite", price: "8" },
{ productId: 4, name: "Malta Guniness", price: "10" }
];
}
HTML:
<body onload="PopulateDropDownList()">
<hr />
<select id="productsDropDown">
</select>
<input type="text" name="price" value="">
</body>
I think you are trying something like below-posted code.
function myFunction(e) {
document.getElementById("price").value = e.target.value
}
<hr />
<select id="productsDropDown" name="productsDropDown" onchange="myFunction(event)">
<option value="4">productId: 1</option>
<option value="2">productId: 2</option>
<option value="8">productId: 3</option>
<option value="10">productId: 4</option>
</select>
<input type="text" size="30" name="price" id="price" />
var demo = angular.module('demo', []);
function MyCtrl ($scope) {
$scope.myGroups = [
{label:'Admin', value:1},
{label:'Users', value:2},
{label:'Public', value:3}
];
$scope.tellUs = function() {
console.log("the selected group is - " + $scope.group);
};
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.0.6/angular.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<div ng-app='demo' ng-controller='MyCtrl'>
<p>You've just selected {{group}}.</p>
<form>
<select ng-model="group"
ng-options="o.value as o.label for o in myGroups"
ng-change="tellUs()"/>
</form>
</div>
I am new to Vue.js. I am trying to render check boxes from v-for (which renders correctly) based on an array.
Then I try to render a button beside each check box which opens a multi-select based on the selected index. But every time I click the rendered button, it opens up the multi select across all the checkbox buttons.
HTML:
<div>
<label class='label'>countrys:* </label><br><br>
<div
v-for="(country, index) in countries"
class="label"
style="display: inline-block;">
<input
type='checkbox'
value="country"> 
{{country.geos}}        
<img
class='addIcon'
v-bind="country"
:key="country.index"
style="width: 26px;height: 20px;margin-right: 8px;margin-top: px;margin-left: -25px;margin-bottom:-5px"
src='../../images/createScreen/addClient#2x.png'
#click="makeMarketsActive($event, index)">
<select multiple v-if="!isHidden">
<option
v-for="(market) in country.markets"
v-bind="country">
{{ market }}
</option>
</select>
</div>
</div>
JS:
export default {
name: "Update",
components: {
},
data() {
return {
countries:[
{
"index":0,
"geos":"America",
"markets":['a','b','c','d']
},
{
"index":1,
"geos":"Canada",
"markets":['a','b']
},
"index":2,
"geos":"Africa",
"markets":['x','z']
}
],
isHidden:true
}
},
makeMarketsActive(event, index) {
this.isHidden = !this.isHidden;
}
Expected result : When clicking the image rendered for each checkbox I just want to see the market for each geo and not for all.
You also don't need the extra function
HTML
<div id="app">
<label class='label'>countries:* </label><br><br>
<div v-for="(country, index) in countries" class="label" style="display: inline-block;">
<input type='checkbox' value="country">{{country.geos}}
<img class='addIcon' v-bind="country" :key="country.index" style="margin-right: 8px;margin-top: px;margin-left: -25px;margin-bottom:-5px" src='https://via.placeholder.com/26x20' v-on:click="country.isVisible = !country.isVisible">
<select multiple v-show="country.isVisible">
<option v-for="(market) in country.markets" v-bind="country" >{{ market }}</option>
</select>
</div>
</div>
JS
new Vue({
el: '#app',
data: {
countries: [{
"index": 0,
"geos": "America",
"markets": ['a', 'b', 'c', 'd'],
"isVisible": false
},
{
"index": 1,
"geos": "Canada",
"markets": ['a', 'b'],
"isVisible": false
}, {
"index": 2,
"geos": "Africa",
"markets": ['x', 'z'],
"isVisible": false
}
]
}
})
First of all, as mentioned in comments, you are handling each button state via general property isHidden. So you need to add this property to data array:
new Vue({
el: "#app",
data: {
countries:[
{
"index":0,
"geos":"America",
"markets":['a','b','c','d'],
"isHidden":true
},
{
"index":1,
"geos":"Canada",
"markets":['a','b'],
"isHidden":true
},
{"index":2,
"geos":"Africa",
"markets":['x','z'],
"isHidden":true
}
]
},
methods: {
makeMarketsActive(event, index) {
this.countries[index].isHidden = !this.countries[index].isHidden;
}
}
})
<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.17/vue.js"></script>
<div id="app">
<label class='label'>countrys:* </label><br><br>
<div v-for="(country, index) in countries" class="label" style="display: inline-block;">
<input type='checkbox' value="country"> {{country.geos}}        
<img class='addIcon' v-bind="country" :key="country.index" style="width: 26px;height: 20px;margin-right: 8px;margin-top: px;margin-left: -25px;margin-bottom:-5px" src='../../images/createScreen/addClient#2x.png' #click="makeMarketsActive($event, index)">
<select multiple v-if="!country.isHidden">
<option v-for="(market) in country.markets" v-bind="country" >
{{ market }}
</option>
</select>
</div>
</div>
I'm using Angular2 and I have 2 selects:
<div ng-controller="ExampleController">
<form name="myForm">
<label for="companySelect"> Company: </label>
<select name="companySelect" id="companySelect">
<option *ngFor="let company of companies"
value="{{company.id}}"> {{company.name}}
</option>
</select>
<label for="documentTypeSelect"> Type: </label>
<select name="documentTypeSelect" id="documentTypeSelect">
<option value="type1">type1</option>
<option value="type2">type2</option>
<option value="type3">type3</option>
</select>
</form>
<hr>
</div>
I want to change second select options depending on the first select. I can get types (boolean value) by using
company.companyRelations.pop().type1
company.companyRelations.pop().type2
And now, if for example type1 is false, the option in second select should be disabled and if type2 is true, option should be enabled. Is that possible?
EDIT:
Companies in select have deasdv, invoic and orders properties which are true or false. How can i now pass these properties into component.ts properties? Is it possible by event or what? I want to get for example
company.companyRelations.pop().desadv
For company which is selected and it will change disabled options in the second one.
html
<form name="myForm">
<label for="companySelect"> Company: </label>
<select class="form-control" name="companySelect" id="companySelect"
[(ngModel)]="companySelect" (ngModelChange)="onChange($event)">
<option [ngValue]="undefined" disabled selected>Select...</option>
<option *ngFor="let company of companies" [ngValue]="company.id">
{{company.name}}</option>
</select>
<select name="documentTypeSelect" id="documentTypeSelect">
<option [ngValue]="undefined" disabled selected>Select...</option>
<option [disabled]="!desadv" value="desadv">desadv</option>
<option [disabled]="!invoic" value="invoic">invoic</option>
<option [disabled]="!orders" value="orders">orders</option>
</select>
</form>
component.ts
desadv: boolean = false;
invoic: boolean = false;
orders: boolean = false;
and here it will be something like:
onChange(event) {
if(event.desadv) {
this.desadv = true;
}
}
My solution:
html
<form name="myForm">
<label for="companySelect"> Company: </label>
<select name="companySelect" id="companySelect" [(ngModel)]="companySelect"
(ngModelChange)="onChange($event)">
<option [ngValue]="undefined" disabled selected>Select...</option>
<option *ngFor="let company of companies" [ngValue]="company">
{{company.name}}</option>
</select>
<label for="documentTypeSelect"> Type: </label>
<select name="documentTypeSelect" id="documentTypeSelect">
<option [ngValue]="undefined" disabled selected>Select...</option>
<option [disabled]="!desadv" value="desadv">desadv</option>
<option [disabled]="!invoic" value="invoic">invoic</option>
<option [disabled]="!orders" value="orders">orders</option>
<option [disabled]="!recadv" value="orders">recadv</option>
<option [disabled]="!shipment" value="orders">shipment</option>
</select>
component.ts
onChange(event) {
this.desadv = event.companyRelations[0].desadv;
this.invoic = event.companyRelations[0].invoic;
this.orders = event.companyRelations[0].orders;
this.recadv = event.companyRelations[0].recadv;
this.shipment = event.companyRelations[0].shipment;
}
Try this :
<select class="form-control" name="companySelect" id="companySelect" [(ngModel)]="companySelect" (ngModelChange)="onChange($event)">
<option [ngValue]="undefined" disabled selected>Select...</option>
<option *ngFor="let company of companies" [ngValue]="company.id">{{company.name}}</option>
</select>
<select [disabled]="btnDisable" name="documentTypeSelect" id="documentTypeSelect">
<option value="type1">type1</option>
<option value="type2">type2</option>
<option value="type3">type3</option>
</select>
component.ts
private companySelect: any;
private btnDisable: boolean = true;
onChange(event) {
if(event) {
this.btnDisable = false;
}
}
Yes it is possible.
I have created a demo in which second drop down will be enabled depending upon the value of flag in first drop down object.
// Code goes here
var myApp = angular.module('plunker',[]);
angular.module('plunker').controller('MyCtrl', MyCtrl)
MyCtrl.$inject = ['$scope'];
function MyCtrl($scope) {
$scope.items1 = [{
id: 1,
label: 'aLabel',
'flag':true,
subItem: { name: 'aSubItem' }
}, {
id: 2,
label: 'bLabel',
'flag':false,
subItem: { name: 'bSubItem' }
}];
$scope.items2 = [{
id: 1,
label: 'MyName',
'flag':true,
subItem: { name: 'aSubItem' }
}, {
id: 2,
label: 'YourName',
'flag':false,
subItem: { name: 'bSubItem' }
}];
$scope.changeDetect = function(){
$scope.selected1='';
console.log($scope.selected);
if($scope.selected.flag)
{
$scope.flagValue=false;
} else {
$scope.flagValue=true;
}
}
$scope.flagValue=true;
}
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.19/angular.min.js"></script>
<div ng-app="plunker" ng-controller="MyCtrl">
<select ng-options="item as item.label for item in items1 track by item.id" ng-model="selected" ng-change="changeDetect()"></select>
<select ng-options="item as item.label for item in items2 track by item.id" ng-model="selected1" ng-disabled="flagValue"></select>
</div>
In AngularJS 2
<select [ngModel]="selectedDeviceObj" (ngModelChange)="onChangeObj($event)" name="sel3">
<option [ngValue]="i" *ngFor="let i of deviceObjects">{{i.name}}</option>
</select>
<select [ngModel]="selectedDeviceObj1" name="sel2" [disabled]="flag">
<option [ngValue]="i" *ngFor="let i of deviceObjects1">{{i.name}}</option>
</select>
onChangeObj(newObj) {
this.selectedDeviceObj1='';
console.log(newObj);
this.selectedDeviceObj = newObj;
if(newObj.flag){
this.flag = false;
}
else {
this.flag = true;
}
Please find Demo Link Plunkr
I have a multiple select like this :
<select ng-model="listProds" multiple>
<option value="10">product 1</option>
<option value="25">product 2</option>
<option value="35">product 3</option>
<option value="48">product 4</option>
</select>
The values are the Ids for these products ( and this selectbox is generated using PHP )
& I've got this simple code in my app.js file :
var app = angular.module('myapp', []);
app.controller("PurchasesController", function($scope) {
// Init products Array
$scope.listProds = [];
});
When I display the listProds like this {{ listProds }}, I get an array containing the current selected items, but it only shows the Ids like this if I select all of them ["10","25","35","48"].
<fieldset ng-show="listProds.length > 0">
<div data-ng-repeat="p in listProds track by $index">
{{ p }} <!– Or –> {{ listProds[$index] }}
<input type="text" name="pr{{ listProds[$index] }}" />
<input type="text" name="qt{{ listProds[$index] }}" />
</div>
</fieldset>
This code generate two text boxes to enter the Price and Quantity for each Product in selected from the selectbox. So instead of using {{ p }} or {{ listProds[$index] }} and displaying the Product Id, I want to display there the Product name.
Thank you in advance.
You can create two lists: one for all your products and a separate list for the selected products:
$scope.listProds = [
{ key: 10, value: 'Product 1' },
{ key: 25, value: 'Product 2' },
{ key: 35, value: 'Product 3' },
{ key: 45, value: 'Product 4' }
];
$scope.selectedProds = [];
Now in your markup, instead of writing out each option in your select manually, you can use ng-options to generate your options. Using this approach, you are basically saying that each option is an object, and you want to use the objects value as the display name.
<select ng-model="selectedProds" ng-options="prod.value for prod in listProds" multiple>
Now your $scope.selectedProds array will contain the product objects, and not just they keys. So now you can display the name easily:
<fieldset ng-show="selectedProds.length > 0">
<div data-ng-repeat="p in selectedProds track by $index">
{{ p.value }}
<input type="text" name="pr{{ selectedProds[$index] }}" />
<input type="text" name="qt{{ selectedProds[$index] }}" />
</div>
</fieldset>
Not sure what your want the name attribute of the inputs to be, but I hope you get the idea.
Try this.
var app = angular.module('selTest', []);
app.controller('MainCtrl', function($scope) {
$scope.selectedProducts = [];
$scope.products = [
{ id:1, name: 'POne' },
{ id:2, name: 'PTwo' },
{ id:3, name: 'PThree' }
];
$scope.getNames = function(prods) {
return prods.map(function(p) {
return p.name;
});
};
$scope.getIds = function(prods) {
return prods.map(function(p) {
return p.id;
});
};
});
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="selTest">
<div ng-controller="MainCtrl">
<select name="products"
class="form-control input-sm"
ng-model="selectedProducts"
ng-options="p.name for p in products track by p.id"
ng-style="{'width':'100%'}" multiple>
</select>
<div>Selected Names: {{ getNames(selectedProducts) }}</div>
<div>Selected Ids: {{ getIds(selectedProducts) }}</div>
</div>
</div>
I have taken a select list with multiple option using ng-options. I am using it as below:
<select ng-options="c as c.Text for c in ReceiverList track by c.Value" ng-model="ReceiverUserID" class="form-control" id="ddlReceiverUserID" ng-change="GetWorkers(ReceiverUserID, SenderUserID,'receiver')">
<option value="">--Select Supervisor--</option>
</select> <!-- Parent Drop Down-->
<select multiple ng-options="c as c.Text group by c.Group
for c in receiveList track by c.Value" ng-model="Workers"
class="form-control" id="ddlWorkers" size="10">
</select> <!-- Child Drop Down -->
This select dropdown get filled when I select some item from another dropdown.(It's a kind of cascaded dropdown). Filling it like below:
$scope.GetWorkers = function (objA, objB, ddlType) {
$http.post("user/Workers/", { userID: objA.Value })
.success(function (data, status, headers, config) {
if (ddlType == 'sender') {
$scope.sendList = data;
} else {
$scope.receiveList = data;
$('#ddlWorkers optgroup[label="Current Users"] option').prop('disabled', true); // Not working
}
})
.error(function (data, status, headers, config) {
showToast(ToastType.error, "Error occured while fetching workers.", "Failure");
});
}
I want to disable child dropdown's specific group items. So I tried below code but it is not working:
$('#ddlWorkers optgroup[label="Current Users"] option').prop('disabled', true);
I don't know how do I disable specific group items of select whenever its data changes or new data loaded.
Here is HTML output in which I want to disable all optgroup[label="Current Users"] members:
<select multiple="" ng-options="c as c.Text group by c.Group for c in receiveList track by c.Value" ng-model="Workers" class="form-control ng-pristine ng-valid" id="ddlWorkers" size="10">
<optgroup label="Current Users">
<option value="4118">Kevins Numen</option>
<option value="4119">ggdfg fdgdfg</option>
</optgroup>
<optgroup label="New Users">
<option value="1093">Case Worker</option>
</optgroup>
</select>
I don't know much about angularjs or ng-options, but it seems that everybody else used some timeout to let the process populate the received data to the input, and you can try something this like others:
...
} else {
$scope.receiveList = data;
setTimeout(function(){
$('#ddlWorkers optgroup[label="Current Users"] option')
.prop('disabled', true); // Not working
}, 100);
}
...
maybe not similar but good to have a look here:
is there a post render callback for Angular JS directive?
You need to customize your code and also JSON Object
<div ng-controller="AjaxCtrl">
<h1>AJAX - Oriented</h1>
<div>
Country:
<select id="country" ng-model="country" ng-options="country for country in countries">
<option value=''>Select</option>
</select>
</div>
<div>
City: <select id="city" ng-disabled="!cities" ng-model="city"><option value='' ng-repeat="item in cities" ng-disabled="item.disabled">{{item.name}}</option></select>
</div>
<div>
Suburb: <select id="suburb" ng-disabled="!suburbs" ng-model="suburb" ng-options="suburb for suburb in suburbs"><option value='' ng-disabled="item.disabled" ></option></select>
</div>
</div>
Your Angular
function AjaxCtrl($scope) {
$scope.countries = ['usa', 'canada', 'mexico', 'france'];
$scope.$watch('country', function(newVal) {
if (newVal)
$scope.cities = [
{ id: 1, name: '11111'},
{ id: 2, name: '22222', disabled: true },
{ id: 3, name: '33333', disabled: true }
]
});
$scope.$watch('city', function(newVal) {
if (newVal) $scope.suburbs = ['SOMA', 'Richmond', 'Sunset'];
});
}
function AjaxCtrl($scope) {
$scope.countries = ['usa', 'canada', 'mexico', 'france'];
$scope.$watch('country', function(newVal) {
if (newVal)
$scope.cities = [
{ id: 1, name: '11111'},
{ id: 2, name: '22222', disabled: true },
{ id: 3, name: '33333', disabled: true }
]
});
$scope.$watch('city', function(newVal) {
if (newVal) $scope.suburbs = ['SOMA', 'Richmond', 'Sunset'];
});
}
<link href="http://fiddle.jshell.net/css/normalize.css" rel="stylesheet"/>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.0.2/angular.js"></script>
<div ng-controller="AjaxCtrl" class="ng-scope">
<h1>AJAX - Oriented</h1>
<div>
Country:
<select id="country" ng-model="country" ng-options="country for country in countries" class="ng-valid ng-dirty"><option value="" class="">Select</option><option value="0">usa</option><option value="1">canada</option><option value="2">mexico</option><option value="3">france</option></select>
</div>
<div>
City: <select id="city" ng-disabled="!cities" ng-model="city" class="ng-valid ng-dirty"><!-- ngRepeat: item in cities --><option value="" ng-repeat="item in cities" ng-disabled="item.disabled" class="ng-scope ng-binding">11111</option><option value="" ng-repeat="item in cities" ng-disabled="item.disabled" class="ng-scope ng-binding" disabled="disabled">22222</option><option value="" ng-repeat="item in cities" ng-disabled="item.disabled" class="ng-scope ng-binding" disabled="disabled">33333</option></select>
</div>
<div>
Suburb: <select id="suburb" ng-disabled="!suburbs" ng-model="suburb" ng-options="suburb for suburb in suburbs" class="ng-pristine ng-valid" disabled="disabled"><option value="" ng-disabled="item.disabled" class=""></option></select>
</div>
</div>
Reference