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MudComboBox: Open/Close Icon is not being rendered. #609
Description
Hi!
I seem to have a problem that i'm not able to recreate on your sandbox, which is a bit annoying.
The issue is that the arrow icons for opening/closing a combobox do not seem to render at all. Looking at the DOM that "adornment" does not exist either, its as if its failing to create it on render.
This happens with even the most basic MudComboBox, e.g:
<MudComboBox T="string">
<MudComboBoxItem Value="@("Hello")" T="string">Hello</MudComboBoxItem>
</MudComboBox>
Activity
mckaragoz commentedon Mar 5, 2026
Could you provide a screenshot?
thomasdewulf commentedon Mar 16, 2026
@mckaragoz It can be seen on the docs site.
nurullahturkoglu commentedon Oct 17, 2026
@mckaragoz I had a look at this. The icon went missing in #577:
MudInputExtendednow renders the end adornment only whenHasAdornmentEndis true, andMudComboBoxpassesHasAdornmentEnd="@(AdornmentEnd != null)".With no custom
AdornmentEndthat's false, so the default open/close icon is never rendered.MudSelectExtendedpassestruein the same place.Setting it to
trueinMudComboBoxbrings the icon back, since the combobox always puts something in that slot (a customAdornmentEndor the default icon).I added a bUnit test that checks the ArrowDropDown icon is there and switches to ArrowDropUp when the menu opens. It fails on
devand passes with the change, and the rest of the tests pass.Would you like a PR for this?