public SolveAddView()
{
InitializeComponent();
SolveTextBox = this.FindControl <TextBox>("SolveTextBox");
SolveTextBox.Text = "00:00:00.00";
SolveTextBox.CaretIndex = 6;
SolveTextBox.CaretBrush = Avalonia.Media.Brushes.Yellow;
SolveTextBox.AddHandler(TextInputEvent, PreviewTextInput, RoutingStrategies.Tunnel);
SolveTextBox.AddHandler(KeyDownEvent, PreviewKeyDown, RoutingStrategies.Tunnel);
CancelButton = this.Find <Button>("CancelButton");
#if DEBUG
this.AttachDevTools();
#endif
this.WhenActivated(disposableRegistration =>
{
this.BindCommand(
ViewModel,
viewModel => viewModel.CancelCommand,
view => view.CancelButton)
.DisposeWith(disposableRegistration);
ViewModel !.CancelCommand.Subscribe(_ => Close())
.DisposeWith(disposableRegistration);
});
}
private void SolveButton_Click(object sender, RoutedEventArgs e)
{
SolveTextBox.Clear();
try
{
a = Double.Parse(aTextBox.Text);
b = Double.Parse(bTextBox.Text);
c = Double.Parse(cTextBox.Text) - Double.Parse(resultTextBox.Text);
}
catch (FormatException)
{
MessageBox.Show("Введите числа");
return;
}
d = Math.Pow(b, 2) - 4 * a * c;
SolveTextBox.Text += $"D = {b}² - 4 * {a} * {c} = {d}\n";
if (d > 0)
{
x1 = (-b + Math.Sqrt(d)) / (2 * a);
x2 = (-b - Math.Sqrt(d)) / (2 * a);
SolveTextBox.Text += $"x1 = ({-b} + √{d})/(2 * {a}) = {x1}\n";
SolveTextBox.Text += $"x2 = ({-b} - √{d})/(2 * {a}) = {x2}\n";
}
else if (d == 0)
{
x1 = x2 = -b / (2 * a);
SolveTextBox.Text += $"x = {-b}/(2 * {a}) = {x1}\n";
}
else
{
SolveTextBox.Text += "Решений нет";
}
}
protected override void OnOpened(EventArgs e)
{
base.OnOpened(e);
SolveTextBox.Focus();
}