Questions tagged [ngx-mydatepicker]

Description Angular attribute directive date picker. Compatible Angular2+.

There is similar date picker here, but difference between these two is that with the ngx-mydatepicker you can define the style of input box, calendar and clear buttons.

Installation To install this component to an external project, follow the procedure:

npm install ngx-mydatepicker --save

Add MyDatePickerModule import to your @NgModule like example below

import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { MyTestApp } from './my-test-app';
import { NgxMyDatePickerModule } from 'ngx-mydatepicker';

@NgModule({
    imports:      [ BrowserModule, NgxMyDatePickerModule.forRoot() ],
    declarations: [ MyTestApp ],
    bootstrap:    [ MyTestApp ]
})
export class MyTestAppModule {}

If you are using systemjs package loader add the following ngx-mydatepicker properties to the System.config:

(function (global) {
    System.config({
        paths: {
            'npm:': 'node_modules/'
        },
        map: {
            // Other components are here...

            'ngx-mydatepicker': 'npm:ngx-mydatepicker/bundles/ngx-mydatepicker.umd.min.js'
        },
        packages: {
        }
    });
})(this);

Usage Use one of the following two options.

1. ngModel binding In this option the ngModel binding is used. Here is an example application. It shows how to use the ngModel.

To use ngModel define the application class as follows:

import {INgxMyDpOptions, IMyDateModel} from 'ngx-mydatepicker';
// other imports here...

export class MyTestApp {

    myOptions: INgxMyDpOptions = {
        // other options...
        dateFormat: 'dd.mm.yyyy',
    };

    // Initialized to specific date (09.10.2018)
    model: any = { date: { year: 2018, month: 10, day: 9 } };

    constructor() { }

    // optional date changed callback
    onDateChanged(event: IMyDateModel): void {
        // date selected
    }
}

Add the following snippet inside your template:

<!-- input box styling is bootstrap 3.3.7 -->
<form>
    <div class="input-group">
        <input class="form-control" style="float:none" placeholder="Select a date" ngx-mydatepicker name="mydate"
               [(ngModel)]="model" [options]="myOptions" #dp="ngx-mydatepicker" (dateChanged)="onDateChanged($event)"/>

        <span class="input-group-btn">
            <button type="button" class="btn btn-default" (click)="dp.clearDate()">
                <i class="glyphicon glyphicon-remove"></i>
            </button>
            <button type="button" class="btn btn-default" (click)="dp.toggleCalendar()">
                <i class="glyphicon glyphicon-calendar"></i>
            </button>
        </span>
    </div>
</form>

There are two ways to set an initial date to the model.

Initialize with the IMyDate object: // Initialized to specific date (09.10.2018) model: any = { date: { year: 2018, month: 10, day: 9 } }; Initialize with the JS date object: // Initialized to today model: any = { jsdate: new Date() }; 2. Reactive forms In this option the value accessor of reactive forms is used. Here is an example application. It shows how to use the formControlName.

To use reactive forms define the application class as follows:

    import {INgxMyDpOptions} from 'ngx-mydatepicker';
    // other imports here...

    export class MyTestApp implements OnInit {

    myOptions: INgxMyDpOptions = {
        // other options...
        dateFormat: 'dd.mm.yyyy',
    };

    private myForm: FormGroup;

    constructor(private formBuilder: FormBuilder) { }

    ngOnInit() {
        this.myForm = this.formBuilder.group({
            // Empty string or null means no initial value. Can be also specific date for
            // example: {date: {year: 2018, month: 10, day: 9}} which sets this date to initial
            // value.

            myDate: [null, Validators.required]
            // other controls are here...
        });
    }

    setDate(): void {
        // Set today date using the patchValue function
        let date = new Date();
        this.myForm.patchValue({myDate: {
        date: {
            year: date.getFullYear(),
            month: date.getMonth() + 1,
            day: date.getDate()}
        }});
    }

    clearDate(): void {
        // Clear the date using the patchValue function
        this.myForm.patchValue({myDate: null});
    }
}

Add the following snippet inside your template:

<!-- input box styling is bootstrap 3.3.7 -->
<form [formGroup]="myForm" (ngSubmit)="onSubmit()" novalidate>
    <div class="input-group">
        <input class="form-control" style="float:none" placeholder="Select a date" ngx-mydatepicker name="myDate"
               formControlName="myDate" [options]="myOptions" #dp="ngx-mydatepicker"/>

        <span class="input-group-btn">
            <button type="button" class="btn btn-default" (click)="dp.clearDate()">
                <i class="glyphicon glyphicon-remove"></i>
            </button>
            <button type="button" class="btn btn-default" (click)="dp.toggleCalendar()">
                <i class="glyphicon glyphicon-calendar"></i>
            </button>
        </span>
    </div>

    <div class="btnGroup">
        <button class="button" type="submit" [disabled]="myForm.controls.myDate.errors">Submit</button>
        <p class="error" *ngIf="myForm.controls.myDate.errors">Date is required!</p>
    </div>
</form>

Example of the options data (not all properties listed): myOptions: INgxMyDpOptions = { todayBtnTxt: 'Today', dateFormat: 'yyyy-mm-dd', firstDayOfWeek: 'mo', sunHighlight: true, disableUntil: {year: 2016, month: 8, day: 10} }; defaultMonth attribute If initial date is not specified, when the calendar is opened, it will ordinarily default to selecting the current date. If you would prefer a different year and month to be the default for a freshly chosen date picking operation, specify a defaultMonth attribute.

Value of the defaultMonth attribute can be:

IMyDefaultMonth object. The value of defMonth property can be a string which contain year number and month number separated by delimiter. The delimiter can be any special character. For example: 08-2016 or 08/2016. a string which contain year number and month number separated by delimiter. The delimiter can be any special character. For example: 08-2016 or 08/2016. Functions You can can call functions of the directive. Define local variable to input field like below:

<input ngx-mydatepicker name="mydate" [(ngModel)]="model" [options]="myOptions" #dp="ngx-mydatepicker"/>

This #dp="ngx-mydatepicker" defines the local variable named dp. You can use it to call functions of the directive for example (click)="dp.openCalendar()".

openCalendar function Opens the calendar. For example:

<button type="button" (click)="dp.openCalendar()">Open</button>

closeCalendar function Closes the calendar. For example:

<button type="button" (click)="dp.closeCalendar()">Close</button>

toggleCalendar function Closes the calendar if it is open and opens the calendar if it is closed. For example:

<button type="button" (click)="dp.toggleCalendar()">Toggle</button>

clearDate function Clears the date from the input box and model. For example:

<button type="button" (click)="dp.clearDate()">Clear</button>

isDateValid function Returns true if the date in the input box is valid. Otherwise it returns false. This function also calls the inputFieldChanged callback.

<input ngx-mydatepicker [(ngModel)]="model" [options]="myDatePickerOptions" #dp="ngx-mydatepicker"/>
@ViewChild('dp') ngxdp: NgxMyDatePickerDirective;

checkDateValidity(): void {
let valid: boolean = this.ngxdp.isDateValid();
console.log('Valid date in the input box: ', valid);
}

Callbacks dateChanged callback called when the date is selected, removed or input field typing is valid

event parameter:

event.date: Date object in the following format: { day: 22, month: 11, year: 2016 } event.jsdate: Javascript Date object event.formatted: Date string in the same format as dateFormat option is: '2016-11-22' event.epoc: Epoc time stamp number: 1479765600 event parameter type is IMyDateModel

Example of the dateChanged callback:

onDateChanged(event: IMyDateModel) {
  console.log('onDateChanged(): ', event.date, ' - jsdate: ', new Date(event.jsdate).toLocaleDateString(), ' - formatted: ', event.formatted, ' - epoc timestamp: ', event.epoc);
}

inputFieldChanged callback called when the value change in the input field, date is selected or date is cleared (can be used in validation, returns true or false indicating is date valid or not in the input field)

event parameter:

event.value: Value of the input field. For example: '2016-11-22' event.dateFormat: Date format string in the same format as dateFormat option is. For example: 'yyyy-mm-dd' event.valid: Boolean value indicating is the input field value valid or not. For example: true event parameter type is IMyInputFieldChanged

Example of the input field changed callback:

onInputFieldChanged(event: IMyInputFieldChanged) {
  console.log('onInputFieldChanged(): Value: ', event.value, ' - dateFormat: ', event.dateFormat, ' - valid: ', event.valid);
}

calendarViewChanged callback called when the calendar view change (year or month change)

event parameter:

event.year: Year number in calendar. For example: 2016 event.month: Month number in calendar. For example: 11 event.first: First day of selected month and year. Type of IMyWeekday. For example: {number: 1, weekday: "tu"} event.last: Last day of selected month and year. Type of IMyWeekday. For example: {number: 30, weekday: "we"} event parameter type is IMyCalendarViewChanged

values of the weekday property are same as values of the firstDayOfWeek option

Example of the calendar view changed callback:

onCalendarViewChanged(event: IMyCalendarViewChanged) { console.log('onCalendarViewChanged(): Year: ', event.year, ' - month: ', event.month, ' - first: ', event.first, ' - last: ', event.last); } calendarToggle callback called when the calendar is opened or closed

event: number from 1 to 4 indicating the reason of the event 1 = calendar opened 2 = calendar closed by date select 3 = calendar closed by calendar button 4 = calendar closed by outside click (document click) 5 = calendar closed by ESC key Example of the calendar toggle callback:

  onCalendarToggle(event: number): void {
      console.log('onCalendarClosed(): Reason: ', event);
  }

Development of this component At first fork and clone this repo.

Install all dependencies:

npm install npm install --global gulp-cli Build the npmdist folder and execute tslint:

gulp all Execute unit tests and coverage (output is generated to the test-output folder):

npm test Run sample application:

npm start Open http://localhost:5000 to browser Build a local npm installation package:

gulp all cd npmdist npm pack local installation package is created to the npmdist folder. For example: ngx-mydatepicker-0.0.1.tgz Install local npm package to your project:

npm install path_to_npmdist/ngx-mydatepicker-0.0.1.tgz