Skip to content

bug(Datepicker): setting value inside valueChanges doesn't update the UI #27983

Open
@dana-c0914

Description

@dana-c0914

Is this a regression?

I don't know if this was working at some point or not

Description

I am using reactive forms to get/set values from a datepicker and I noticed that if I set a date manually, inside the valueChanges event based on some condition, the value of the form control updates, but not the UI.

The UI changes however if you remove the input and manually set a value inside valueChanges.

Reproduction

StackBlitz link: https://stackblitz.com/edit/qpu5ns
Steps to reproduce (1):
(1*. Select any date - optional)

  1. Select the 10th of any month
  2. Check date displayed in input vs date printed under the input

Expected Behavior

We have the same date in the input as printed below the input

Actual Behavior

The date in the input is the date selected using the datepicker, the date below the input is the date set inside valueChanges

Environment

Browser: Chrome
(From the stackblitz environment)
Angular CLI: 16.1.0
Node: 18.18.0
Package Manager: yarn 1.22.19
OS: linux x64

Angular: 16.1.1
... animations, common, compiler, compiler-cli, core, forms
... platform-browser, platform-browser-dynamic, router

Package Version
@angular-devkit/architect 0.1601.0
@angular-devkit/build-angular 16.1.0
@angular-devkit/core 16.1.0
@angular-devkit/schematics 16.1.0
@angular/cdk 16.2.9
@angular/cli 16.1.0
@angular/material 16.2.9
@angular/material-moment-adapter 16.2.9
@schematics/angular 16.1.0
rxjs 7.4.0
typescript 5.0.3

Activity

added
P4A relatively minor issue that is not relevant to core functions
and removed
needs triageThis issue needs to be triaged by the team
on Oct 31, 2023
mmalerba

mmalerba commented on Oct 31, 2023

@mmalerba
Contributor

Confirmed, as a workaround you can wrap your setValue call in a Promise.resolve(): https://stackblitz.com/edit/qpu5ns-pb413w?file=src%2Fexample%2Fdatepicker-api-example.ts

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Metadata

Metadata

Assignees

No one assigned

    Labels

    P4A relatively minor issue that is not relevant to core functionsarea: material/datepicker

    Type

    No type

    Projects

    No projects

    Milestone

    No milestone

    Relationships

    None yet

    Development

    No branches or pull requests

    Issue actions

      bug(Datepicker): setting value inside valueChanges doesn't update the UI · Issue #27983 · angular/components