I did some R & D on this issue, same issue occurred with Angular1 as well and mostly people suggested that use ng-attr-placeholder, but there is no fix for this issue in Angular2.
I am asking about Angular2 not Angular1.
I have found solution for this:
create a custom directive for placeholder text
import { Directive, ElementRef, Input } from '@angular/core';
import { NgControl } from "@angular/forms";
@Directive({
selector: '[customPlaceholder]'
})
export class PlaceholderDirective {
constructor(private el: ElementRef, private control : NgControl) { }
@Input('customPlaceholder')
public set defineInputType(pattern: string) {
this.el.nativeElement.placeholder = pattern;
setTimeout(() => {
this.control.control.markAsPristine();
}, 0);
}
}
and in your HTML
<textarea type="text" customPlaceholder="Message" class="form-control" formControlName="message" rows="10" >
</textarea>
The thing is that it will set <textbox>
back to pristine and it is achieved with setTimeOut. But for permanent solution angular team should look into it why IE is setting <textbox>
to dirty.
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