HxInputTextArea #

<EditForm Model="model" OnValidSubmit="HandleValidSubmit">
    <DataAnnotationsValidator />
    <HxInputTextArea @bind-Value="model.Text" />
    <HxSubmit Text="Submit" Color="ThemeColor.Primary" />
</EditForm>

LastSubmit: @lastSubmit

@code
{
    private Model model = new Model();
    private DateTime? lastSubmit;

    private Task HandleValidSubmit()
    {
        lastSubmit = DateTime.Now;
        return Task.CompletedTask;
    }

    public class Model
    {
        [System.ComponentModel.DataAnnotations.Required]
        [System.ComponentModel.DataAnnotations.MaxLength(4000)]
        public string Text { get; set; }
    }
}