iOS Picker and Entry have borders by default

[BlueRaja]

Description

On iOS, both <Picker> and <Entry> have borders by default. I consider this a bug because

A. It's different from Android, so you end up with different behavior on different platforms

B. Neither of these components have any Border* properties. In order to remove the border, you need to add a custom native handler.

C. If I wanted a border, I could easily add one using a <Border> component. But removing one is a hassle.

Steps to Reproduce

1. Use a <Picker> or <Entry> in iOS

Expected results:
Ideally, it would default to having a border (in both iOS and Android), but the border could easily be removed with a BorderWidth property or something. But failing that, I think it should default to no border.

Actual results:
Border exists and can't be removed without native code.

Link to public reproduction project repository

No response

Version with bug

9.0.90 SR9

Is this a regression from previous behavior?

Yes, this used to work in Xamarin.Forms

Last version that worked well

Unknown/Other

Affected platforms

iOS

Affected platform versions

No response

Did you find any workaround?

Microsoft.Maui.Handlers.PickerHandler.Mapper.PrependToMapping("MyApp.PickerHandler", (handler, view) =>
{
    // Remove border around native picker element
    handler.PlatformView.BorderStyle = UITextBorderStyle.None;
});

Relevant log output

[jsuarezruiz]

In .NET MAUI, like Xamarin.Forms, controls like and are cross-platform abstractions that render differently based on their native platform implementation. On iOS, the default visual appearance is inherited from the native UIKit controls:

→ UITextField

These native UITextField components come with built-in border styling (UITextBorderStyle.RoundedRect). Android, on the other hand, maps these controls to:

→ EditText

That’s why when you use controls like or in MAUI (which map to UITextField), they display that border automatically unless overridden via Mapper.

Would you like to convert the issue to a request to add styling properties like BorderThickness, BorderColor to Entry etc?

[dotnet-policy-service]

Hi @@BlueRaja. We have added the "s/needs-info" label to this issue, which indicates that we have an open question for you before we can take further action. This issue will be closed automatically in 7 days if we do not hear back from you by then - please feel free to re-open it if you come back to this issue after that time.