Billing/Billing.Shared/Views/AddAccountPage.xaml.cs

using Billing.Models;
using Billing.UI;
using System;
using Xamarin.Forms;

namespace Billing.Views;

public partial class AddAccountPage : BillingPage
{
    private static readonly BindableProperty AccountNameProperty = BindableProperty.Create(nameof(AccountName), typeof(string), typeof(AddAccountPage));
    private static readonly BindableProperty AccountIconProperty = BindableProperty.Create(nameof(AccountIcon), typeof(string), typeof(AddAccountPage));
    private static readonly BindableProperty CategoryProperty = BindableProperty.Create(nameof(Category), typeof(string), typeof(AddAccountPage));
    private static readonly BindableProperty BalanceProperty = BindableProperty.Create(nameof(Balance), typeof(decimal), typeof(AddAccountPage));
    private static readonly BindableProperty MemoProperty = BindableProperty.Create(nameof(Memo), typeof(string), typeof(AddAccountPage));

    public string AccountName
    {
        get => (string)GetValue(AccountNameProperty);
        set => SetValue(AccountNameProperty, value);
    }
    public string AccountIcon
    {
        get => (string)GetValue(AccountIconProperty);
        set => SetValue(AccountIconProperty, value);
    }
    public string Category
    {
        get => (string)GetValue(CategoryProperty);
        set => SetValue(CategoryProperty, value);
    }
    public decimal Balance
    {
        get => (decimal)GetValue(BalanceProperty);
        set => SetValue(BalanceProperty, value);
    }
    public string Memo
    {
        get => (string)GetValue(MemoProperty);
        set => SetValue(MemoProperty, value);
    }

    private readonly Account account;

    public Command CheckAccount { get; }

    public event EventHandler<AccountEventArgs> AccountChecked;

    public AddAccountPage()
    {
        CheckAccount = new Command(OnCheckAccount);
        InitializeComponent();
    }

    public AddAccountPage(Account account)
    {
        this.account = account;
        AccountName = account.Name;
        AccountIcon = account.Icon;
        Category = account.Category.ToString();
        Balance = account.Balance;
        Memo = account.Memo;
        CheckAccount = new Command(OnCheckAccount);
        InitializeComponent();
    }

    private void OnCheckAccount()
    {
        AccountChecked?.Invoke(this, new AccountEventArgs
        {
            Account = new Account
            {
                Id = account?.Id ?? -1,
                Name = AccountName,
                Icon = AccountIcon,
                //Category = Category,
                Balance = Balance,
                Memo = Memo
            }
        });
    }
}

public class AccountEventArgs : EventArgs
{
    public Account Account { get; set; }
}