when I need to pass some information between child and parent element I use props. But is there a way to pass elements to the component, for example like this
<MyComponent>
<router-link to="/oneOfTheList">OneOfTheList</router-link>
</MyComponent>
Router-Link seems to do it somehow...
How can I specify where the elements will be placed in my component
This is called slot
ComponentA.vue
<div>
<slot></slot>
</div>
ComponentB.vue
<component-a>
<span>test</span> // this part will be shown inside component A's slot tags
</component-a>
Here you go
Related
I have built a user-defined component (async-select) on top of another component (vue mutliselect) like this:
https://jsfiddle.net/2x7n4rL6/4/
Since the original vue-multiselect component offers a couple of slots, I don't want to loose the chance to use them. So my goal is to make these slots available from inside my custom component. In other words, I want to something like this:
https://jsfiddle.net/2x7n4rL6/3/
But that code oes not work.
However, if I add the slot to the child component itself, it works just fine (which you can see from the fact that options become red-colored).
https://jsfiddle.net/2x7n4rL6/1/
After surfing the web, I have come across this article, but it does not seem to work
Is there any way in VueJS to accomplish this ?
Slots can be confusing!
First, you need a template element to define the slot content:
<async-select :value="value" :options="options">
<template v-slot:option-tmpl="{ props }">
<div class="ui grid">
<div style="color: red">{{ props.option.name }}</div>
</div>
</template>
</async-select>
Then, in the parent component, you need a slot element. That slot element itself can be inside of another template element, so its contents can be put in a slot of its own parent.
<multiselect
label="name"
ref="multiselect"
v-model="localValue"
placeholder="My component"
:options="options"
:multiple="false"
:taggable="false">
<template slot="option" slot-scope="props">
<slot name="option-tmpl" :props="props"></slot>
</template>
</multiselect>
Working Fiddle: https://jsfiddle.net/thebluenile/ph0s1jda/
I have a component that functions as a basis for other components.
//The Basis Component lets call it slotComponent
<template>
<div>
//somestuff
<slot :someProperties="someLocalValues"></slot>
</div>
</template>
As you can see I want to give the component that is replacing the slot some Properties that only this component will know.
However if I do this:
//Some page Component lets call it mainPage
<template>
<slotComponent>
<someOtherComponent/>
</slotComponent>
</template>
Then "someOtherComponent" will not have access to "someProperties". How can I provide this component with said property?
Note that someLocalValues are defined in the scope of slotComponent and not its parent. So I cant provide said information in the mainPage.
You need to specify the v-slot directive in order to bind the props. Check the documentation here: https://v2.vuejs.org/v2/guide/components-slots.html#Scoped-Slots
You also will need to pass the props to your child component.
In your example, you would need to do something like:
<template>
<slotComponent>
<someOtherComponent v-slot="slotData" :data="slotData.someProperties"/>
</slotComponent>
</template>
This is the same, but with an additional <template> for clarity:
<template>
<slotComponent>
<template v-slot="slotData">
<someOtherComponent :data="slotData.someProperties"/>
</template>
</slotComponent>
</template>
I've got a page template with the following code part:
<nested-draggable v-bind:list="list" v-bind:selected="selected" v-bind:group="dragGroup">
<slot>
<v-icon v-on:click="$root.$emit('click', el)" small v-if="allowcreate" style="float: right">mdi-plus</v-icon>
</slot>
</nested-draggable>
the sub component ("nested-draggable.vue") for the recursion looks like this:
<template>
<ul class="tree">
<draggable
class="dragArea"
tag="li"
v-for="el in list"
v-bind:elementdata="el"
v-bind:key="el._id"
v-bind:list="list_empty"
v-bind:selected="selected"
v-bind:group="group"
v-on:add="add"
>
<span v-bind:class="{'selected' : el._id === selected._id}" v-on:click="elemClicked(el)">{{ el.title }}</span>
<slot></slot>
<!-- render children of the current iterated element -->
<nested-draggable
v-bind:list="el.children" v-bind:selected="selected" v-bind:group="group">
<!--<slot></slot>-->
</nested-draggable>
</draggable>
</ul>
</template>
so I'd like to have the click event from the button within the passed slot emited with the current iteration's var "el" when the "plus" button is clicked, but within the slot the "el" var that is used within the iteration at the nested-draggable component can not be accessed. Vue tells that there is no "el" reference when trying to emit. (Throwing this error: https://pastebin.com/8bNwMcDr)
So how can I access the recursive data within the passed slot? How do I have to define my slot when passing it?
The only solution I found is putting the button/event-link directly into the nested-draggable component (not as slot) but I think to be clean and write a nice separated component, this would not belong into the nested draggable component, but in its parent.
You don't need to pass your event from the template because you can get in your method anyways. This should help you out.
New to VueJS... I have a component that I want to pass other components into based on the selection made in a dropdown. I have a main template that will always be rendered on the screen, part of which has a dropdown. When I make a selection in that dropdown I want to have a div inside that main component with an ID (or some other identifying property) and push another template inside of it. I'm thinking that a slot does the opposite of what I want..
Original Template:
<div class="search-field-with-label-container">
<el-select v-model="serviceType">
<el-option
v-for="serviceType in serviceTypes"
:key="serviceType.id"
:value="serviceType"
>{{ serviceType }}</el-option>
</el-select>
<div id="thisIsWhereIWantMyOtherTemplateToRender"
</div>
Second template:
<template>
<h1>this is the other template</h1>
</template>
You can use dynamic components with the keep-alive tag.
<keep-alive>
<component v-bind:is="selectedComponent"></component>
</keep-alive>
Documentation is here.
Is it possible to let Aurelia render a custom element without the capsulating component node? Or replace the custom-element node with its content?
Example:
app.html
<template>
<require from = "./components/custom-component.html"></require>
<custom-component></custom-component>
</template>
app.ts
export class App {
}
custom-component.html
<template>
<p>This is some text from dynamic component...</p>
</template>
Result
Based on this example: Is it possible with aurelia to render the <p> element from the component as direct child of the <body>, so that there will be no custom-component-node?
Use the containerless attribute on your component.
example: https://gist.run/?id=8e57000c7b8423dc0246a7006d90ba79
you can also decorate your custom components with the containerless() decorator.
see: http://aurelia.io/hub.html#/doc/article/aurelia/framework/latest/cheat-sheet/9