[Blazor] New parameter value not being reflected when InputBase-derived component displays _incomingValueBeforeParsing (_parsingFailed is true)

[hakenr]

Is there an existing issue for this?

• I have searched the existing issues

Describe the bug

When you set new value to Value parameter and the InputBase-derived component is in _parsingFailed == true state, the _parsingFailed is not reset (neither the ValidationMessageStore) and the input renders the previous _incomingValueBeforeParsing.

Expected Behavior

Reset _parsingFailed and _parsingValidationMessages when new Value parameter value is set from outside.

Steps To Reproduce

<InputDate @bind-Value="value" />
<button @onclick="@(() => value = DateTime.Today)">Set valid value</button>

@code {
	private DateTime value;
}

1. Enter any invalid value to the input, such as 02/30/2000.
2. Click Set valid value button.
   ...the InputDate does not render current date, the invalid date is still being rendered.

Exceptions (if any)

No response

.NET Version

9.0.1

Anything else?

Introduced within #46434.
(I can try to help with creating an E2E test and implement a PR if we agree on an approach to take.)

[javiercn]

@hakenr thanks for contacting us.

This seems like a bug. We would accept a PR for this if you are interested in contributing it.

[hakenr]

@javiercn I'm interested in contributing and would like to discuss one aspect of the implementation.

What's the preferred way to detect when a "new parameter value is coming"? Should I override SetParametersAsync and check if the incoming parameter value differs from Value?

Or would you prefer the change detection and reset to be handled later in the lifecycle?