MudSelectExtended with Virtualize and MultiSelect doesn't initialise the Text property

[fighterii]

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I have the following weird behavior.

Following minimal example for

<MudSelectExtended T="string"       
                @ref="_releases"
                   SearchBox="true" 
                   Label="Features" 
                   ItemCollection="featureOptions"
                   @bind-SelectedValues="features"
                   SearchBoxAutoFocus="true" 
                   SearchBoxClearable="true" 
                   Variant="Variant.Outlined"
                   ValuePresenter="MudExtensions.Enums.ValuePresenter.Chip"
                   Virtualize="true"
                   ChipCloseable="true"
                   ChipSize="Size.Small"
                   ChipVariant="Variant.Text"     
                   Required="true"
                   MultiSelection="true" />
<MudText>SelectedValues: @_releases.SelectedValues.Count()</MudText>
<MudText>Text Value: @_releases.Text</MudText>

@code {
    public List<string> featureOptions;
    public IEnumerable<string> features;
    private MudSelectExtended<string> _releases;

    protected override async Task OnInitializedAsync()
    {
        featureOptions = new List<string> { "Feature 1", "Feature 2", "Feature 3" };
        features = new List<string> { "Feature 1"};
        await base.OnInitializedAsync();
    }
}

As you can see i have a ItemCollection assigned for all possible features (populated in OnInitializedAsync).

The features list has one feature preselected. features = new List<string> { "Feature 1"}

If i now start the MudDialog the rendered MudSelectExtended acts as if no Feature is selected (e.g. Label is shown above the Chip!). If i select a second Feature ("Feature 2") the label behaves correctly and is shown above the box. If i now deselect "Feature 1" (so only "Feature 2" is selected) the Component behaves again like nothing is selected (at least on my local instance. On https://trymudextensions.pages.dev/snippet it bevaces correctly) .

So i think somehow the Count of the binded values is not taken in account correctly at startup. But as you can see in the example, the SelectedItems.Count() is set correctly.

[fighterii]

I narrowed it down to the css transitition when the "mud-shrink" class is added to the input div. This somehow isn't added. As I would assume from https://github.com/CodeBeamOrg/CodeBeam.MudBlazor.Extensions/blob/dev/CodeBeam.MudBlazor.Extensions/Components/InputExtended/MudInputExtended.razor.cs#L17C19-L17C19 the class is added if the Text is not null or the converter is returning a not null.

As you can see in the example when the page is loaded the _releases.Text indeed returns a null value. After I change the values the Text Value is correctly set.

• Why isn't the Text Property updated on initializiation?
• How can i manually trigger that? Even with ForceUpdate() the Text Property isn't updated correctly.

However this only seems to be a problem when Virtualize="true". With no Virtualization Text is still empty, but there aren't any render issues. With no MultiSelect (but Virtualize="true") the Text Property is set correctly on initialization.

[fighterii]

Workaround from #109 with using a custom MultiSelectionTextFunc works.