I have two datepickers in my code and i change them between each other by another parameter(duration which can be Single day or Multi day). By default it set as Single day. First calendar have right position, but when i change from single day to multi day and open range datepicker, calendar which have absolute position sets in top left corner of page (with top:0;left:0 parameters).
I tried change directive v-if to v-show in my code below, and it helps, but there is another problem. For some reason element-ui think that picked value is not range and throw parse error. So i need another solution.
That's piece of code with this datepickers:
<el-date-picker
v-if="duration === durations.SingleDay"
placeholder="Enter date"
value-format="yyyy-MM-dd"
#input="updateTime($event, 'dateValue')"
:value="value.dateValue"
></el-date-picker>
<el-date-picker
v-else-if="duration !== durations.SingleDay"
placeholder="Enter date"
type="daterange"
value-format="yyyy-MM-dd"
:value="value.dateValue"
#input="updateTime($event, 'dateValue')"
></el-date-picker>
I want to positionate range datepicker as usual, like in datepicker in Single day parameter.
FIDDLE
Demo on fiddle, first open calendar and change type and reopen it, you can see this bug
In that case, there're two ways to solve this:
Change v-if to v-show
Add different key attributes to the Datepicker components (Vue will know that this is two different components)
In fact, this is not a bug. You use the same component in v-if and v-else. The two component properties are basically the same, so Vue will reuse the previous components, but you should avoid multiplexing complex components in Vue. It's easy to go wrong, which is why you must add a key in v-for in vue.
You did not modify the internal reference this.$refs.reference when you reused the component, and the position of the popover cannot be calculated correctly.
Related
I am trying to create a questionnaire. I have an array of questions. Each question is an object. During the loop the <component :is> checks the component property inside the question object. If the property equals an Input for example then an input will be shown and so on.
This works for simple questions. However the last question requires a more complex layout. Here 'Please add items' needs to have two inputs and an add button. Once pressed a table will appear with each row displaying the values passed into the fields from above. At the moment I can't do this as I am looping though a sub set of questions.
There could be 1000+ questions eventually and I am not sure whether creating a component for each question is the right approach?
I know my current approach isn't right some how but I am completely stuck how to approach this. Is there a way of looping through data and providing unique layouts for each question? The data structure isn't set in stone so feel free to change it.
https://codesandbox.io/embed/blazing-wood-ifnxym?fontsize=14&hidenavigation=1&theme=dark
Within the v-for, you can wrap the elements in a <template>, and then just use v-if to determine which element is displayed.
For example :
<template v-for="question in question.questions" :key="question.id">
<Input v-if="quetion.type === 'text'" :question="question" />
<Radio v-if="quetion.type === 'choice'" :question="question" />
...
</template>
I am editing a vue for a project that I am working on. Below is my code
<tr v-for="(program, index) in selectedGantryLocation.pickPrograms">
<v-select :items="program"
:v-model="selectedGantryLocation.pickProgramValues[index]">
</v-select>
</tr>
The selectedGantryLocation.pickPrograms is a list of a list of strings. So each "program" that is being used in the iteration is an array of strings, it is nothing more and nothing less. The array generally looks like ["Program1","Program2","Program3" etc.]. The :items are being populated correctly and are displayed correctly in the dropdown.
Now because in this vue each dropdown will already have a previously selected value that I am grabbing from the backend, I need each dropdown to show the already selected value. selectedGantryLocation.pickProgramValues[index] is indexing a list of strings, each being the default value of each v-select that is created.
For some reason the v-model is not showing any default values. I have verified that the selectedGantryLocation.pickProgramValues is indeed populated and filled with strings. Is there an issue with assigning v-model to a string? If that is the case then I do not know how to go about fixing this issue as I have no more properties to reference because I am only working with lists of strings.
I also know that this won't work if the v-model value does not exist in the :items but I have also verified that it does exist here so that should not be an issue.
If anyone has any ideas of why my v-selects do not have any default values I would appreciate your feedback, thank you!
I am using a v-for over a custom component and passing the item as a prop. But the issue is that each component instance in the loop takes the same item prop. For e.g in the 1st loop a component field has text "abc", then the second looped component also will have the same "abc" text. If I change the text in the 2nd one, it changes in the 1st component too. Is there a way to make the prop unique for each loop ?
For e.g this is the code which calls the inner component:
<template v-for="(businesscase, index) in businessCase.fields">
<custom-case-freetext-field #field-changed="updateFields"
:key="index"
#field-removed="removeFields"
:fields="businessCase.fields"
:index="index">
</custom-case-freetext-field>
</template>
and inside this component I have a basic form
<sw-field :label="$tc('rma.modules.case.freetext.nameLabel')"
:placeholder="$tc('rma.modules.case.freetext.nameLabel')"
required
v-model="fields[index].name">
</sw-field>
<sw-single-select
labelValue="label"
valueProperty="label"
:options="fieldTypes"
:label="$tc('rma.modules.case.freetext.fieldType')"
:placeholder="$tc('rma.modules.case.freetext.fieldType')"
v-model="fields[index].type"
#input="changeType"
required>
</sw-single-select>
If I do :value instead of v-model, the entered value disappears as soon as the element loses focus.
If I use v-model, the data stays there, but then both (or as many are there in the loop) component instances, have data binding between them, so it defeats the purpose of having a loop for multiple components. As seen in the screenshot, I am typing in the 2nd component, but it changes the text for the first one too.
In the above example I am sending the whole array as prop, but I have also tried with individual field element instead of fields
Your are not using the businesscase variable inside your components. And since every component always works on the upper scope property, they will all change the same. Use the innerscope property. If you have problems with reactivity, because you try to mutate props directly work with events emitting the key and the changed value to the upperscope component.
I have to show date field. After giving multiple true, the picker is showing wrong value.
Added code:
<v-date-picker :landscape="$store.state[parentName].landscape" v-model="$store.state[parentName].picker"
:multiple= "true"
#input="handleInput" >
</v-date-picker>
Please help me out. From where this 10 selected is coming. Where did i went wrong.
I think from your code, your v-model data, $store.state[parentName].picker already have any value.
You can see this value using Vue.js devtools.
If don't have any value on v-model, please anotate the comment.
If you already have any value, and you don't expect
You should clear the $store.state[parentName].picker in beforeMount or beforeCreate.
I'm trying to find a way to add a new value using v-select previously not in the list. So that the new value entered will become the selected option.
This is my current code:
<v-select
ref="systemSelect"
v-model="reservation.system"
name="system"
label="Select System"
:disabled="isBusy"
:options="systems"
#input="getSystems"
/>
In UI the component looks like this. Here I use Vuex only to get :options. Currently if I enter a new value and click outside that value disappears since its not found in the list
Expected: Would like to enter a new value and use this value as current in the form and save it. Is there a way to achieve this?
Any help would be appreciated.
Thanks!
If you're using vue select, you can use the attribute taggable and multiple to push your own options:
<v-select taggable multiple />
See this link:
https://vue-select.org/guide/values.html#tagging