Upload fire OnComplete event with Auto false and no URL

Radzen.Blazor Components
1

I am setting Auto to false and excluding the URL, similar to this post .

However, I’m unable to get the OnComplete event to fire. The intent is to use OnComplete and OnChange events from upload, and to handle the processing from a button’s click event. But perhaps I cannot use Upload in this manner?

UPDATE: For my scenario, which leverages ClearFiles(), I can just complete the processing in the button's click handler. I don't need the OnComplete event, therefore, I don't need to call Update(). Not sure if this post will benefit others.

@if (!string.IsNullOrEmpty(statusMessage))
{
    <p>Status Message: @statusMessage</p>
}

<RadzenCard Variant="Variant.Outlined">
    <RadzenUpload @ref="RadzenUploadComponent"
                  Auto="false"
                  Change=@OnChange
                  Multiple="true"
                  Complete=@OnComplete
                  ChooseText="Select Picture Files"
                  Style="width: 100%"
                  InputAttributes="@(new Dictionary<string,object>{ { "aria-label", "select file" }})" />
    <RadzenButton Text="Upload Files" Click=@OnClickUpload class="rz-mt-4" />
</RadzenCard>

@code {
    private string statusMessage = "";
    RadzenUpload RadzenUploadComponent;
    IEnumerable<Radzen.FileInfo>? filesSelected = new List<Radzen.FileInfo>();

    private async void OnClickUpload()
    {
        foreach (Radzen.FileInfo? fInfo in filesSelected!)
        {
            // processing files
        }

        await RadzenUploadComponent.Upload(); // just to ensure the Complete event is triggered.

        statusMessage = $"Files were uploaded successfully.";

       // StateHasChanged(); // I thought I did not need to call this from an event handler
    }


    void OnChange(UploadChangeEventArgs args)
    {
        filesSelected = args.Files;
    }

    void OnComplete(UploadCompleteEventArgs args)  // This not getting called
    {
        statusMessage = "Files uploaded.";
        RadzenUploadComponent.ClearFiles();
    }
}