[Blazor.Fast] Example of how to use the components with validation and databinding

BlazorFastAdvancedValidation.razor

@using System.ComponentModel.DataAnnotations

<EditForm Model="model" OnValidSubmit="Submit">
    <DataAnnotationsValidator />
    <ValidationSummary />
    <p>
        <TextField @bind-Value="model.Firstname">Firstname*</TextField>
    </p>
    <p>
        <TextField @bind-Value="model.Lastname">Lastname*</TextField>
    </p>
    <p>
        <TextField type="tel" @bind-Value="model.Telephone">Phone</TextField>
    </p>
    <p>
        <TextField type="email" @bind-Value="model.Email">Email Address*</TextField>
    </p>
    <p>
        <DateField @bind-Value="model.Birthday">Date of birth</DateField>
    </p>
    <p>
        <NumberField @bind-Value="model.AmountOfChildren">Amount of kids</NumberField>
    </p>
    <Button type="submit">Submit</Button>
</EditForm>
<Dialog hidden=@(!isShowingDialog ? "true" : null)>
    <div style="padding: 0 10px 10px; color: var(--neutral-foreground-rest)">
        <h2>You submitted the form with the following contents:</h2>
        <p>Firstname: @model.Firstname</p>
        <p>Lastname: @model.Lastname</p>
        <p>Telephone: @model.Telephone</p>
        <p>Email: @model.Email</p>
        <p>Date of birth: @model.Birthday</p>
        <p>Kids: @model.AmountOfChildren</p>
        <Button @onclick="CloseDialog">Close</Button>
    </div>
</Dialog>

@code{
    private bool isShowingDialog = false;
    private EditModel model = new EditModel();
    public class EditModel
    {
        [Required]
        [StringLength(10, ErrorMessage = "Firstname is too long.")]
        public string Firstname { get; set; }
        [Required]
        [StringLength(10, ErrorMessage = "Lastname is too long.")]
        public string Lastname { get; set; }
        public string Telephone { get; set; }
        [Required]
        [EmailAddress]
        public string Email { get; set; }
        public DateTime Birthday { get; set; }
        public int AmountOfChildren { get; set; }
    }
    private void Submit() => isShowingDialog = true;
    private void CloseDialog() => isShowingDialog = false;
}