My Vue/Buefy app automatically selects the first option from the list:
<b-select model="form.cities[i].index"
v-on:input.once="analyt('City ' + i)"
#input="form.cities[i].name = cities[form.cities[i].index ['#attributes'].Name"
:id="'city-'+i"
:name="'city-'+i"
:required="i == 0"
>
<option
:value="index"
v-for="(city,index) in cities"
v-text="city['#attributes'].Name">
</option>
</b-select>
How do I avoid that? I just want empty field selected by default (or nothing to be selected at all)
Could you just add an empty option field? This should solve your problem.
<b-select model="form.cities[i].index"
v-on:input.once="analyt('City ' + i)"
#input="form.cities[i].name = cities[form.cities[i].index ['#attributes'].Name"
:id="'city-'+i"
:name="'city-'+i"
:required="i == 0"
>
<option selected></option>
<option
:value="index"
v-for="(city,index) in cities"
v-text="city['#attributes'].Name">
</option>
</b-select>
I solved this problem by making sure the first element in the populating array was my default (the one I wanted selected). Then I set the value of the select element to the default.
In my case, I was populating the drop down list based on selection of a different drop down.
First drop down
<select id="firstDropdown" #change="populateDropdown">
// options code ...
</select>
Drop down being populated by the first drop down.
<select id="populatedDropdown">
<option v-for:"item in items">
{{ item }}
</option>
</select>
In Component script
data: function() {
return {
items: []
}
},
method: {
populateDropdown() {
// fetch items from api and store in "array".
this.items = ['Default'].concat(array);
document.querySelector('#popualtedDropdown').value = 0;
}
I hope that makes sense and helps.
<option
value="none" selected disabled hidden>
</option>
This worked for me seamlessly.
Another option is
<option
selected>
</option>
which gives an empty first entry in the list which is a bit undesired.
Related
I would like to display the number of each result available beside each result in a select drop-down menu.
I can get it to display all results in the data set using the code below but not the individual amounts. Im new to Vue, so not sure exactly how to proceed. Can anyone help, please?
<select v-model="fee"
class="form-control"
#change="Feeonchange()"
:disabled="selectDisabledFees"
>
<option disabled value="">Select fee status</option>
<option v-for="fee in uniqueFees" :key="fee" :value="fee">
{{ fee }} ({{ resultFees }})
</option>
</select>
computed:
resultFees() {
const resultFeesCount = this.results.filter((results) => {
return this.uniqueFees;
});
return resultFeesCount.length;
},
I am new in vue js please help.
I have two dropdowns and that that dropdown create from loop
<select v-if="tour.city_expert == 2" v-model="selected[index]" class="form-control" :id="'city_expert_both'+index" v-on:change="intiTourCityExpert(index, $event)" :disabled="tour.is_disable==true">
<option value="" selected>Select City Expert</option>
<option value="Guideinperson">Guide in person</option>
<option value="AudioGuide">Audio Guide</option>
</select>
I as per image I want reset dropdown if I uncheck the checkbox but only reset single row as I uncheck the checkbox.
I set v-model="selected[index]" on dropdown and set code on uncheck this.$set(this.selected, index, ''); but its not working.
Help
I ran into similar situation, and following worked for me.
And to rest try following anywhere - this.selectedStatus = '0';
<select id="item_status" class="form-control" v-model="selectedStatus">
<option value='0'></option>
<option value='1'>One</option>
<option value='2'>Two</option>
</select>
If I were you, I would do something like this:
Add an onchange event to the checkbox with its index:
#change="onChange(index)"
In the methods object define the function
onChange like this:
methods: {
onChange(index) {
this.selected[index] = ''
}
}
If you want to reset the value of dropdown on click on any other button or so, than just set it to null.
this.accountType = null;
My Dropdown:
<ejs-dropdownlist
v-model:value="accountType"
:dataSource="accountTypesData"
:select="accountTypeSelect"
placeholder="Select a type"
></ejs-dropdownlist>
I would like to add a disabled option to a select that I have bound with v-for binding. The Vue docs on select suggests adding one but the example is using hard coded options.
I want to create a disabled 'Please select one' with v-for binding to force the user to pick a option rather than defaulting to a particular selection. I currently add a 'Please select one' option to the list I'm binding the select to and it shows up and works fine but I don't want the user to be able to choose it again.
How can I accomplish this when using v-for binding to a select?
//Contrived example of adding the default selection text
data.dashboardDefinitionList.splice(0, 0, { Id: 0, Name:"Select a Dashboard" });
<select id="dashboardSelectNew" v-model="formVariables.dashboardDefIndex" v-on:change="getDashboard">
<option v-for="(dd, index) in dashboardDefinitionList"
:value="dd.Id"
:selected="formVariables.dashboardDefIndex == index">
{{ dd.Name }}
</option>
</select>
Put your disabled option first, then do the v-for.
<select id="dashboardSelectNew" v-model="formVariables.dashboardDefinition" #change="getDashboard">
<option disabled value="">Please select one</option>
<option v-for="dd in dashboardDefinitionList" :key="dd.id" :value="dd">
{{ dd.Name }}
</option>
</select>
Note that I've also attempted to clean up your model / value binding but you may not want or need it.
For the initial value, you would set it to an actual entry from your list instead of a specific index, eg
this.formVariables.dashboardDefinition = this.dashboardDefinitionList[someIndex]
You can use it like this adding disabled selected to appear first and cannot be selected also good practice to put value="0" because you are using id in the value attribute
<select id="dashboardSelectNew" v-model="formVariables.dashboardDefIndex" v-on:change="getDashboard">
<option value="0" disabled selected> Please select one </option>
<option v-for="(dd, index) in dashboardDefinitionList"
:value="dd.Id"
:selected="formVariables.dashboardDefIndex == index">
{{ dd.Name }}
</option>
</select>
What is the correct way to bind a select element to an object (rather than a string value) but still have the HTML element submit a string value?
I've managed to get this working, but it almost seems like I'm exploiting a bug:
<select v-model="selected" v-on:change="price=selected.price">
<option v-for="item in items" v-bind:value="item" value="{{ item.id }}">{{ item.name }}</option>
</select>
This works as intended: the "selected" property is attached to the "item" object, but the form POSTs just the item's ID. However, if I reverse the order of the HTML attributes, so that value={{ item.id }} comes before v-bind:value="item", then the form POSTs "[Object]" rather than, e.g., "3".
The fact that it's so fragile makes me think I'm doing something wrong.
So what's the right way to handle this?
I had a similar situation in which I built several vue components that could be used both within a vue component or within a standard form.
<select v-model="selected" v-on:change="price=selected.price">
<option v-for="item in items" :value="JSON.stringify(item)">{{ item.name }}</option>
</select>
Appears to be what you are after. I also had success using a computed property or filter but I decided that stringify was most readable.
I fixed it by using this approach:
<select v-model="product">
<option v-for="obj in choices" :value="obj">{{ obj.name }}</option>
</select>
<input type="hidden" name="product" :value="choice.id">
In summary: don't give your select a name but give that name to your hidden input and provide the ID as value on that element instead.
I see in both the cases, HTML being rendered as following:
<select>
<option value="[object Object]">name1</option>
<option value="[object Object]">name2</option>
<option value="[object Object]">name3</option>
<option value="[object Object]">name4</option>
</select>
Case 1 : v-bind:value="item" value="{{ item.id }}" : fiddle
Case 2 : value="{{ item.id }}" v-bind:value="item" : fiddle
So both the cases are equivalent as far as HTML being rendered. Ideal way to do it without confusion will be just using v-bind:value="item" like following:
<select v-model="selected" v-on:change="price=selected.price">
<option v-for="item in items" v-bind:value="item">{{ item.name }}</option>
</select>
You should v-bind to item or item.id depending on what you want to assign to selected variable.
I have a dropdown with the following attributes on it:
<select value.bind="row.columns[$parent.$index].colSize" change.delegate="changeColumnSize($parent.$index, $index, row.columns[$parent.$index].colSize)">
<option value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
<option value="4">4</option>
</select>
But it seems that I cannot pass row.columns[$parent.$index].colSize as an parameter. It is always undefined.
How can I pass the selected value of the dropdown directly to the change events method?
You're missing the value.bind in your select options. I prefer to use mode.bind instead of value.bind though. Try something like this:
<template>
<select value.bind="changedValue" change.delegate="DropdownChanged(changedValue)">
<option model.bind="1">1</option>
<option model.bind="2">2</option>
<option model.bind="3">3</option>
<option model.bind="4">4</option>
</select>
</template>
export class App {
changedValue;
DropdownChanged(changedVal) {
alert(changedVal);
}
}
I'm not sure what you're trying to bind the select to, but basically you want to create a variable that you can bind the selected value too. So, the selected value is going to be set to the variable of changedValue. I like to use model.bind because I can bind true/false values instead of everything being a string.
I've made a running Gist for you to use if needed:
https://gist.run/?id=87f6897928feb504dad638d439caf92f