MatAutocomplete fails with tab and google autofill

[sebestyn168]

Describe the bug
Matautocomplete fails when leaving the component using the tab key (in MatBlazor 2.6.0)

To Reproduce
Go to https://www.matblazor.com/AutocompleteList
Select a value in the first automcomplete
Open Debug tools (F12)
Press Tab twice (first one enters the component, seconds leaves the component)

To Correct?
Though, I'm not sure it does not include regression, I added a check on the OnKeyDown of the BaseMatAutocompleteList

void OnKeyDown(KeyboardEventArgs ev)
{
       if (ev.Key == "Tab") return;
       ...

[sebestyn168]

Describe the bug
Our users use Chrome's form-filling functionality. And when one of the fields to be filled is an autocomplete, Chrome sends key.null which crashes the component.

To Reproduce
You need to
use chrome
activate the functionality to fill Addresses (+phone, e-mail...)
have a form with an autocomplete like user name with all users and a textfield for email for example
enter the email field => let google fill the form
press F12 and see the error

To Correct
Add a check to prevent crash

 void OnKeyDown(KeyboardEventArgs ev)
{
           if (ev.Key == null || // google autofill sends null key
                ev.Key == "Tab")
                return;

[lindespang]

@sebestyn168 I'd say go ahead and make a pull request for this =)

[Gareth064]

Is this bug now fixed? If I was to download the latest nuget package would it have this fix in it?

[sebestyn168]

Well the develop branch seems to have been merged just before the latest nuget 2.6.2 (https://www.nuget.org/packages/MatBlazor/)
So it's not official but I think it's ok