[Feature]: defaultSelectedKey on ComboBox

[EmanueleUniroma2]

Library

React Components / v9 (@fluentui/react-components)

Describe the feature that you would like added

ComboBox currently only supports a defaultSelectedKey. It would be useful to have a multi-select equivalent, something like defaultSelectedKeys.

I wish to be able to set the initial selections for a multi select combo box using this attribute.

Have you discussed this feature with our team

No response

Additional context

I think this feature is just expected. Other Fluent components support it, so it's strange we don't have it on ComboBox.

Validations

• [X] Check that there isn't already an issue that request the same feature to avoid creating a duplicate.

[gouttierre]

I’ve added this to our backlog for review and the teams we will review the priority of the request at a later stage for future planning.

[micahgodbolt]

defaultSelectedOptions={["Cat", "Fish"]} is already a valid prop. It should work for this use case

https://codesandbox.io/s/bold-ramanujan-5vov62?file=/example.tsx:755-795

[msft-fluent-ui-bot]

This issue has been marked as being beyond the support scope of Fluent UI's issues board. It will now be closed automatically for house-keeping purposes.