C# (CSharp) LoginTextBox.ClearValue Exemples

Exemple #1

        private void SimpleLoginButton_Click(object sender, RoutedEventArgs e)
        {
            LoginTextBox.ClearValue(TextBox.BorderBrushProperty);
            LoginTextBox.ClearValue(TextBox.PlaceholderTextProperty);

            if (string.IsNullOrWhiteSpace(LoginTextBox.Text))
            {
                LoginTextBox.BorderBrush     = new SolidColorBrush(Colors.Red);
                LoginTextBox.PlaceholderText = "Login is required";
            }
            else if (LoginTextBox.Text.Length <= 3)
            {
                LoginTextBox.BorderBrush = new SolidColorBrush(Colors.Red);
            }
        }