Exemplos de InfoMessage.BookAlreadyInTheCategoryAsync em C# (CSharp)

Exemplo n.º 1

        private async void AddNewBook_Click(object sender, RoutedEventArgs e)
        {
            int bookCopies = 0;

            if (IsNewBookParametwersOk(ref bookCopies))
            {
                if (IsNamingConventionOk())
                {
                    if (MainPage.ClassManager.IsBookUnique(GetNewBookData(bookCopies)))
                    {
                        await InfoMessage.BookSuccessfullyAddedAsync();
                    }
                    else
                    {
                        await InfoMessage.BookAlreadyInTheCategoryAsync();
                    }

                    ResetTextBoxAndComboBox();
                }
                else
                {
                    await InfoMessage.NamingErrorAsync();
                }
            }
            else
            {
                await InfoMessage.EmptyFieldErrorAsync();
            }
        }