Calendar validation fails with reactive forms

[dcs3spp]

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Plunkr Case (Bug Reports)
Please fork the plunkr below and create a case demonstrating your bug report. Issues without a plunkr have much less possibility to be reviewed.

http://plnkr.co/edit/Qi2Nw2imLpDUF8NJinYw?p=preview

Plunker Case = http://plnkr.co/edit/s2vzxz7uCcV7nAQBUrrM?p=preview

Current behavior

I am using a a model-driven form. I type in an invalid date in the Calendar control and then use patchValue / setValue of the FormGroup to programmatically set the value to a predefined known valid state. The UI of the Calendar control correctly updates to display the new valid date, however the Valid property does not update to True and the errors are not cleared from the Calendar form control.

Expected behavior

The valid property should be updated to True and the errors property should be cleared.

Minimal reproduction of the problem with instructions

Type in an invalid date in the Calendar control, e.g. 'adf' and then click the button. The click event of the button resets the value of the form group using patchValue. The Valid status is not updated to True for the Calendar and the errors are not cleared.

http://plnkr.co/edit/s2vzxz7uCcV7nAQBUrrM?p=preview

What is the motivation / use case for changing the behavior?

Please tell us about your environment:

Mac OS Sierra Version 10.12.5 using npm package manager,

• Angular version: 4.2.6

Issue remains with Angular 4.2.6.

• PrimeNG version: 4.1.0

Issue remains with Angular 4.2.6 and PrimeNG 4.1.0

• Browser: [all ]

• Language: [TypeScript 2.0.3]

• Node (for AoT issues): node --version = 8.1.4

[tokuduzcc]

Hi,
We got the same issue. Did you maybe find a workaround?

TK

[cagataycivici]

Calendar clears the manual input if it is invalid so I wonder if do we still need the built-in invalidDate validation. It makes this very confusing so I'll remove it.