Validation Error Border Missing for Content Picker

[SndpAST]

Describe the bug

In Orchard Core 2.1.5, the validation error styling for required fields is inconsistent across different field types. While text and date fields correctly display a red border when validation fails, the Content Picker field does not show the error border when it is required but left empty.

Orchard Core version

2.1.5

To Reproduce

• Add a Content Picker field to a Content Type.
• Mark the field as Required in its settings.
• Create a new Content Item of this type and leave the Content Picker field empty.
• Try to save the form.

Expected behavior

• The Content Picker field should display a red error border similar to text and date fields when validation fails.

Logs and screenshots

[github-actions]

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[hishamco]

@SndpAST are you going to submit a PR for it?

[Piedone]

This is indeed an issue. I guess it's because while the other two are simple text inputs, the Content Picker is not, and thus needs specific support for this.

[hishamco]

I will wait until tomorrow for @SndpAST if he didn't reply I will might take this

[github-actions]

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