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When we bind the datepicker control in the form it runs fine.
But when we bind the datepicker Control in a custom control and bind this custom Control in a form it doesn't work.
For a test we have bind the datepicker control from ng-bootstrap in same custom control and this works.
What is wrong? Why it doesn't work with ejDatePicker?
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Ø npm install
Ø npm start |
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[app.modeule.ts]
import { EJAngular2Module } from 'ej-angular2';
import { DatePickerComponent } from './datepicker/datepicker.component';
import { PickerComponent } from './app.picker';
@NgModule({
imports: [BrowserModule, FormsModule, ReactiveFormsModule, HttpModule, EJAngular2Module.forRoot(), RouterModule.forRoot(rootRouterConfig, { useHash: true })],
declarations: [AppComponent, HomeComponent, DatePickerComponent, PickerComponent],
bootstrap: [AppComponent]
})
[app.picker.ts]
import { Component, ViewEncapsulation, Input, forwardRef } from '@angular/core';
import { NG_VALUE_ACCESSOR, ControlValueAccessor } from '@angular/forms';
const noop = () => {};
export const CUSTOM_INPUT_CONTROL_VALUE_ACCESSOR: any = {
provide: NG_VALUE_ACCESSOR,
useExisting: forwardRef(() => PickerComponent),
multi: true
};
@Component({
selector: 'picker',
providers: [CUSTOM_INPUT_CONTROL_VALUE_ACCESSOR],
template: `<div class='form-group'><ng-content></ng-content><input ej-datepicker [showOtherMonths] = 'showOtherMonths' [showRoundedCorner] = 'showRoundedCorner' [(ngModel)]='value' /> </div>`
})
export class PickerComponent {
@Input() showRoundedCorner;
@Input() showOtherMonths;
private innerValue: any = ''; //The internal data model
private onTouchedCallback: () => void = noop;
private onChangeCallback: (_: any) => void = noop;
get value(): any { return this.innerValue; }; //get accessor
set value(v: any) { //set accessor including call the onchange callback
if (v !== this.innerValue) {
this.innerValue = v;
this.onChangeCallback(v);
}
}
onBlur() { this.onTouchedCallback(); } //Set touched on blur
writeValue(value: any) { if (value !== this.innerValue) { this.innerValue = value; } }//From ControlValueAccessor interface
registerOnChange(fn: any) { this.onChangeCallback = fn; } //From ControlValueAccessor interface
registerOnTouched(fn: any) { this.onTouchedCallback = fn; } //From ControlValueAccessor interface
}
[app.component.html]
<form [formGroup]="registerForm">
<input type="text" ej-datepicker formControlName= "date" [enableStrictMode]= "false" [dateFormat]= "dateFormat1"/>
<p *ngIf="registerForm.controls.date.errors">This field is required!</p>
<picker [showOtherMonths]="false" formControlName= "date1" ></picker>
<p *ngIf="registerForm.controls.date1.errors">This field is required!</p>
Two Way binding Value: {{registerForm.controls.date1.value}}
</form>
[app.component.ts]
export class DatePickerComponent implements OnInit {
registerForm: FormGroup;
dateFormat1: string;
constructor(private formBuilder: FormBuilder) {
this.dateFormat1 = "dd/MMM/yyyy";
}
ngOnInit() {
this.registerForm = this.formBuilder.group({
date: ['', Validators.required],
date1: ['', Validators.required]
});
}
}
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