I have a simple ion-select in my template. It is not a mandatory field hence not selecting any option is allowed.
<ion-item>
<ion-label>Gender</ion-label>
<ion-select [(ngModel)]="gender" placeholder ="- Any -">
<ion-option value="f">Female</ion-option>
<ion-option value="m">Male</ion-option>
</ion-select>
</ion-item>
I have placed a placeholder="any" and works just fine until user doesn't select anything. However, once user chooses one of the option and decides not to choose any again, user cannot go back to choosing none. I looked at the docs but couldn't get any clue. Any idea on how can user unselect the option once one of the option has been touched/chosen before?
Easiest way is to add a third option of any or whatever you would like it to be
<ion-item>
<ion-label>Gender</ion-label>
<ion-select [(ngModel)]="gender" placeholder ="- Any -">
<ion-option value="f">Female</ion-option>
<ion-option value="m">Male</ion-option>
<ion-option value="">- Any -</ion-options>
</ion-select>
</ion-item>
Related
Working with Ionic version 3.
html example:
<ion-list>
<ion-item>
<ion-label>Gaming</ion-label>
<ion-select [(ngModel)]="gaming">
<ion-option value="nes" class="tored" style="color:red"><span>NES</span> </ion-option>
<ion-option value="n64">Nintendo64</ion-option>
<ion-option value="ps">PlayStation</ion-option>
<ion-option value="genesis">Sega Genesis</ion-option>
<ion-option value="saturn">Sega Saturn</ion-option>
<ion-option value="snes">SNES</ion-option>
</ion-select>
</ion-item>
</ion-list>
My purpose is to change (CSS) specific option values with style or class.
I tried to search here or from documentation for a solution but I didn't find anything useful.
if you're looking for change the css based on a value you can use , ngClass or ngStyle
see this link
[ngClass]="value==='yourValue'?'ClassA':'ClassB'"
and you can also review official docs for NgClass and NgStyle
When I click on the label of an ion-item the checkbox is triggered.
I want to find a way of preventing this from happening as I want to trigger another function when clicking the label.
I found this answer for Ionic 3: https://forum.ionicframework.com/t/solved-can-i-disable-a-checkbox-from-activating-when-clicking-on-a-label/95120
However, it is not working for Ionic 4.
<ion-item>
<ion-icon [name]="setIconDoc(item.document.documentType)" color="primary" (click)="editDocument(item.document)"></ion-icon>
<ion-label padding-start color="none" (click)="editDocument(item.document)"> {{ item.document.customer.name }}
</ion-label>
<ion-checkbox slot="end" color="success" [(ngModel)]="item.isChecked">
</ion-checkbox>
</ion-item>
I'd like to have two behaviors:
- When clicking in the Checkbox trigger just the checkbox.
- When clicking on the label or the icon open a modal to edit my document.
I just had a similar problem and found a nice solution for it in ionic 4 by using the slots of ion-item.
<ion-item lines="full">
<ion-icon slot="start" name="at" (click)="iconClicked()"></ion-icon>
<ion-label slot="start" (click)="labelClicked()">
This is a separately clickable label
</ion-label>
<ion-checkbox slot="end"></ion-checkbox>
</ion-item>
Explanation
The elements in the start slot of the ion-item are not triggered when clicking the checkbox.
The start slot has no bottom border by default so it must be set by adding lines="full" to the ion-item;
Be aware, that the main slot still is rendered with a large width. That may lead to some hidden content. In this case this can be fixed with a css tweak like this.
ion-item ion-label {
overflow: visible;
}
I found another solution. I added another hidden checkbox in the item.
<ion-item *ngFor="let task of tasks;let i of index;" padding margin>
<ion-checkbox slot="start" color="success" (click)="DeleteTask($event, task)"></ion-checkbox>
<!-- another checkbox otherwise item clicks triggers checkbox click -->
<ion-checkbox hidden=true ></ion-checkbox>
<ion-label >
{{task.Name}}
</ion-label>
<ion-reorder slot="end"></ion-reorder>
You can also wrap the checkbox in a slotted div, which appears to break the link between the item and the checkbox.
<ion-item (click)="itemHandler()">
<ion-icon />
<ion-label>Label</ion-label>
<ion-checkbox (click)="checkboxHandler()" />
</ion-item>
If you put the click handler on the ion-item then it will handle clicks from anywhere on the ion-item. However, that includes clicks from the checkbox, so you have to make sure to also call event.stopPropagation() in the checkbox click handler.
I'm dabbling in Ionic for the first time, learning from the beginning using the components documentation, and I got stuck with this error:
Template parse errors:
'ion-option' is not a known element:
When using a select component in this way:
<ion-select [(ngModel)]="gaming">
<ion-option value="nes">NES</ion-option>
</ion-select>
I have searched and found solutions like this: Ionic button showing 'ion-button' is not a known element
however, using something like <option ion-option value="nes">NES</option> doesn't work.
Even, I include the schemas: [CUSTOM_ELEMENTS_SCHEMA] line in my module, but no options are showed.
I'm using:
ionic (Ionic CLI) : 4.5.0
Ionic Framework : #ionic/angular 4.0.0-beta.16
I'll be grateful if someone can help me.
<ion-item>
<ion-label>Hair Color</ion-label>
<ion-select value="brown" ok-text="Okay" cancel-text="Dismiss">
<ion-select-option value="brown">Brown</ion-select-option>
<ion-select-option value="blonde">Blonde</ion-select-option>
<ion-select-option value="black">Black</ion-select-option>
<ion-select-option value="red">Red</ion-select-option>
</ion-select>
</ion-item>
ionic 4 has changed its syntax.
I used below code and got it working.
Ionic 4
<ion-item>
<ion-select value="brown" ok-text="Okay" cancel-text="Dismiss">
<ion-select-option value="brown">Brown</ion-select-option>
<ion-select-option value="blonde">Blonde</ion-select-option>
<ion-select-option value="black">Black</ion-select-option>
<ion-select-option value="red">Red</ion-select-option>
</ion-select>
</ion-item>
Use 'ion-option' instead of 'ion-select-option'.
<ion-item>
<ion-label>Gender</ion-label>
<ion-select [(ngModel)]="this.gender">
<ion-option value="f">Female</ion-option>
<ion-option value="m">Male</ion-option>
</ion-select>
</ion-item>
It works for me as expected.
Thank You
Remember to use as the documentation suggest, if you're new just follow the examples.
<ion-item>
<ion-label>Gender</ion-label>
<ion-select [(ngModel)]="gender">
<ion-option value="f">Female</ion-option>
<ion-option value="m">Male</ion-option>
</ion-select>
</ion-item>
Also if you need modify or a complex behavior, the Api Docs is your best ally.
API Select Ionic
https://ionicframework.com/docs/api/components/select/Select/
Ionic-2 ion-select with popover is not working, but it works with action-sheet interface. The code is simple. I don't want those ok and cancel buttons.
<ion-item>
<ion-label floating>
Selection Label
</ion-label>
<ion-select interface="popover">
<ion-option selected>
option1
</ion-option>
<ion-option>
option2
</ion-option>
</ion-select>
</ion-item>
Ionic Info
popover
action-sheet
In order to use interface="popover" as a property, ionic-angular version should be 3.1.0 or later.
Have a look at 3.1.0 changelog.
i have simple html modal created with select and date field, but not able to see alert or action sheet interface when opened modal form
below is the html code
<ion-item>
<ion-label>Gender</ion-label>
<ion-select interface="action-sheet">
<ion-option value="f" selected="true">Female</ion-option>
<ion-option value="m">Male</ion-option>
</ion-select>
</ion-item>
<ion-item>
<ion-label>Date</ion-label>
<ion-datetime displayFormat="MM/DD/YYYY" [(ngModel)]="myDate"></ion-datetime>
</ion-item>
i am getting output as below, showing both the values instead of dropdown.
what is missing in my code.