<UserControl xmlns:DateTimeEditors="using:C1.Xaml.DateTimeEditors" x:Class="CustomizeEditAppointmentControl_UWP.EditAppointmentControl" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="using:CustomizeEditAppointmentControl_UWP" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:c1="using:C1.Xaml" Loaded="EditAppointmentControl_Loaded"
x:Name="root" DataContextChanged="OnDataContextChanged" mc:Ignorable="d" Height="683.197" Width="805.114">
  <UserControl.Resources>
    <ResourceDictionary>
      <ResourceDictionary.ThemeDictionaries>
        <ResourceDictionary x:Key="Default">
          <SolidColorBrush x:Key="RoundButtonForegroundThemeBrush" Color="#FF24AAD8" />
          <SolidColorBrush x:Key="RoundButtonPointerOverBackgroundThemeBrush" Color="#2124AAD8" />
        </ResourceDictionary>
        <ResourceDictionary x:Key="Light">
          <SolidColorBrush x:Key="RoundButtonForegroundThemeBrush" Color="#FF24AAD8" />
          <SolidColorBrush x:Key="RoundButtonPointerOverBackgroundThemeBrush" Color="#2124AAD8" />
        </ResourceDictionary>
        <ResourceDictionary x:Key="HighContrast">
          <SolidColorBrush x:Key="RoundButtonForegroundThemeBrush" Color="#FFFFFFFF" />
          <SolidColorBrush x:Key="RoundButtonPointerOverBackgroundThemeBrush" Color="#FF008000" />
        </ResourceDictionary>
        <ResourceDictionary x:Key="HighContrastBlack">
          <SolidColorBrush x:Key="RoundButtonForegroundThemeBrush" Color="#FFFFFFFF" />
          <SolidColorBrush x:Key="RoundButtonPointerOverBackgroundThemeBrush" Color="#FF1AEBFF" />
        </ResourceDictionary>
        <ResourceDictionary x:Key="HighContrastWhite">
          <SolidColorBrush x:Key="RoundButtonForegroundThemeBrush" Color="#FF000000" />
          <SolidColorBrush x:Key="RoundButtonPointerOverBackgroundThemeBrush" Color="#FF37006E" />
        </ResourceDictionary>
      </ResourceDictionary.ThemeDictionaries>
      <SolidColorBrush x:Key="highlightBrush" Color="{ThemeResource SystemColorHotlightColor}" />
      <Style x:Key="roundButtonStyle" TargetType="Button">
        <Setter Property="MinWidth" Value="0"/> <Setter Property="Width" Value="42"/>
            <Setter Property="Height" Value="42"/> <Setter Property="Margin" Value="0"/>
            <Setter Property="VerticalAlignment" Value="Bottom"/>
            <Setter Property="Foreground" Value="{ThemeResource RoundButtonForegroundThemeBrush}"/>
            <Setter Property="FontFamily" Value="Segoe UI Symbol"/>
            <Setter Property="FontWeight" Value="Normal"/>
            <Setter Property="FontSize" Value="20"/>
            <Setter Property="AutomationProperties.AutomationId" Value="BackButton"/>
            <Setter Property="AutomationProperties.Name" Value="Back"/>
            <Setter Property="AutomationProperties.ItemType" Value="Navigation Button"/>
            <Setter Property="Template"> <Setter.Value>
            <ControlTemplate TargetType="Button">
            <Grid x:Name="RootGrid">
            <Grid >
           <Rectangle x:Name="FocusVisualWhite" Margin="-3" IsHitTestVisible="False" Stroke="{ThemeResource FocusVisualWhiteStrokeThemeBrush}" StrokeEndLineCap="Square" StrokeDashArray="1,1" Opacity="0" StrokeDashOffset="1.5" />
           <Rectangle x:Name="FocusVisualBlack" Margin="-3" IsHitTestVisible="False" Stroke="{ThemeResource FocusVisualBlackStrokeThemeBrush}" StrokeEndLineCap="Square" StrokeDashArray="1,1" Opacity="0" StrokeDashOffset="0.5" />
           <Ellipse Stroke="{TemplateBinding Foreground}" StrokeThickness="2" VerticalAlignment="Stretch" HorizontalAlignment="Stretch"/>
           <Ellipse x:Name="BackgroundGlyph" Stroke="{TemplateBinding Foreground}" StrokeThickness="2" Fill="{TemplateBinding Foreground}" Opacity="0" VerticalAlignment="Stretch" HorizontalAlignment="Stretch"/>
           <TextBlock x:Name="NormalGlyph" Text="{TemplateBinding Content}" Foreground="{TemplateBinding Foreground}" VerticalAlignment="Center" HorizontalAlignment="Center" />
           <TextBlock x:Name="ArrowGlyph" Text="{TemplateBinding Content}" Foreground="{ThemeResource BackButtonPressedForegroundThemeBrush}" VerticalAlignment="Center" HorizontalAlignment="Center" />
               </Grid>
               </Grid>
              </ControlTemplate>
             </Setter.Value>
           </Setter>
      </Style>
      <DataTemplate x:Key="BaseObjectItemPictTextTemplate">
        <Grid Background="Transparent">
          <Grid.ColumnDefinitions>
            <ColumnDefinition Width="Auto" />
            <ColumnDefinition />
          </Grid.ColumnDefinitions>
          <Border Name="imageBorder" BorderBrush="Black" BorderThickness="1" CompositeMode="MinBlend" Height="18" Width="18" Background="{Binding Brush.Brush}" HorizontalAlignment="Center" VerticalAlignment="Center" Margin="6,2">
          </Border>
          <TextBlock Grid.Column="1" Text="{Binding Text}" VerticalAlignment="Center" />
        </Grid>
      </DataTemplate>
    </ResourceDictionary>
  </UserControl.Resources>

  <Grid>
    <Grid.RowDefinitions>
      <RowDefinition Height="Auto" />
      <RowDefinition/>
    </Grid.RowDefinitions>
    <Grid.ColumnDefinitions>
      <ColumnDefinition Width="Auto" MinWidth="320" />
      <ColumnDefinition/>
    </Grid.ColumnDefinitions>
    <Rectangle Grid.Column="0" Grid.RowSpan="2">
      <Rectangle.Fill>
        <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
          <GradientStop Color="#FF5B9E5B" Offset="0.439" />
          <GradientStop Color="#FF0A630A" Offset="0.703" />
          <GradientStop Color="#FF368136" Offset="0.123" />
        </LinearGradientBrush>
      </Rectangle.Fill>
    </Rectangle>
    <Rectangle Grid.Column="1" Grid.RowSpan="2">
      <Rectangle.Fill>
        <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
          <GradientStop Color="#FF1B4B1B" Offset="0.394" />
          <GradientStop Color="#FF407848" Offset="0.048" />
          <GradientStop Color="#FF349B34" Offset="0.697" />
        </LinearGradientBrush>
      </Rectangle.Fill>
    </Rectangle>
    <Grid Grid.Row="0" Grid.Column="0" VerticalAlignment="Center">
      <Grid.ColumnDefinitions>
        <ColumnDefinition Width="Auto" />
        <ColumnDefinition/>
      </Grid.ColumnDefinitions>
      <Button x:Name="backButton" Click="backButton_Click" Grid.Column="0" Content="&#xE112;" TabIndex="4" ToolTipService.ToolTip="{Binding backButton_ToolTip}" Margin="22, 10, 10, 10" VerticalAlignment="Center" Style="{StaticResource roundButtonStyle}" Background="#FF060606"
      Foreground="White" />
      <TextBlock Margin="5" Text="{Binding Header, ElementName=root}" TextWrapping="NoWrap" TextTrimming="CharacterEllipsis" Grid.Column="1" FontSize="18" MaxWidth="240" VerticalAlignment="Center" />
    </Grid>
    <Grid Grid.Row="0" Grid.Column="1" VerticalAlignment="Center">
      <Grid.ColumnDefinitions>
        <ColumnDefinition/>
        <ColumnDefinition Width="Auto" />
        <ColumnDefinition Width="Auto" />
      </Grid.ColumnDefinitions>
      <Rectangle Height="2" Fill="{StaticResource highlightBrush}" Grid.ColumnSpan="3" Margin="30,0,0,0" VerticalAlignment="Bottom" HorizontalAlignment="Right" />
      <TextBox x:Name="subject" TabIndex="0" Padding="2" BorderThickness="0" PlaceholderText="{Binding subjectPlaceHolder}" Margin="30,0,0,1" Text="{Binding Subject, Mode=TwoWay}" TextChanged="subject_TextChanged" FontSize="18" Grid.Column="0" MaxLength="255"
      IsColorFontEnabled="True" VerticalAlignment="Center" />
      <Button x:Name="saveButton" Click="saveButton_Click" Grid.Column="1" Content="&#xE105;" TabIndex="1" ToolTipService.ToolTip="{Binding saveButton_ToolTip}" Margin="10" VerticalAlignment="Center" Style="{StaticResource roundButtonStyle}" Foreground="White" />
      <Button x:Name="deleteButton" Grid.Column="2" Content="&#xE106;" TabIndex="2" ToolTipService.ToolTip="{Binding deleteButton_ToolTip1}" Margin="10" VerticalAlignment="Center" Style="{StaticResource roundButtonStyle}" Foreground="White" />
    </Grid>
    <StackPanel Grid.Column="0" Grid.Row="1" Margin="20, 10, 10, 10">
      <!-- dates and times -->
      <TextBlock Margin="5,5,5,0" Text="{Binding startTime}" />
      <DateTimeEditors:C1DateTimePicker x:Name="startCalendar" Margin="5" TabIndex="5" DateTimeChanged="startCalendar_DateTimeChanged" Padding="4" TimeFormat="ShortTime" DateFormat="Short" TimeIncrement="0:15" FirstDayOfWeek="{Binding Path=ParentCollection.ParentStorage.ScheduleStorage.Scheduler.CalendarHelper.WeekStart}" />
      <!-- End -->
      <TextBlock Margin="5,5,5,0" Text="{Binding endTime}" />
      <DateTimeEditors:C1DateTimePicker x:Name="endCalendar" Margin="5" TabIndex="6" Padding="4" DateTimeChanged="endCalendar_DateTimeChanged" FirstDayOfWeek="{Binding Path=ParentCollection.ParentStorage.ScheduleStorage.Scheduler.CalendarHelper.WeekStart}"
      TimeFormat="ShortTime" DateFormat="Short" TimeIncrement="0:15" />
      <!-- All Day -->
      <CheckBox x:Name="chkAllDay" Checked="chkAllDay_Checked" Unchecked="chkAllDay_Unchecked" TabIndex="7" Margin="5" IsChecked="{Binding AllDayEvent, Mode=TwoWay}" Content="{Binding allDayEvent}" />
      <!-- location -->
      <TextBox x:Name="location" Margin="5" IsColorFontEnabled="True" TabIndex="8" Header="{Binding location}" Text="{Binding Location, Mode=TwoWay}" MaxLength="255" />
      <!-- recurrence -->
      <ComboBox x:Name="howOften" SelectionChanged="howOften_SelectionChanged" TabIndex="9" Header="{Binding howOftenComboBoxHeader}" MinWidth="140" Margin="5" />
      <StackPanel x:Name="recPanel">
        <CheckBox x:Name="recEndDateSet" Margin="5" Checked="recEndDateSet_Checked" Unchecked="recEndDateSet_Unchecked" TabIndex="10" Content="{Binding recEndDate}" />
        <DateTimeEditors:C1DateTimePicker x:Name="recEndDate" Margin="5" IsEnabled="{Binding IsChecked, ElementName=recEndDateSet}" TabIndex="11" Padding="4" DateFormat="Short" EditMode="Date" DateTimeChanged="recEndDate_DateTimeChanged" FirstDayOfWeek="{Binding Path=ParentCollection.ParentStorage.ScheduleStorage.Scheduler.CalendarHelper.WeekStart}" />
      </StackPanel>
      <!-- reminder -->
      <CheckBox x:Name="reminderSet" IsChecked="{Binding ReminderSet, Mode=TwoWay}" Margin="5" TabIndex="12" Content="{Binding reminderSet}" />
      <DateTimeEditors:C1TimeEditor x:Name="reminderTime" TabIndex="13" Format="TimeSpan" Padding="4" Margin="5" IsEnabled="{Binding Path=IsChecked, ElementName=reminderSet}" Increment="00:05" CycleChangesOnBoundaries="False" AllowNull="False" Minimum="0:00"
      Maximum="14.00:00" />
      <!-- other props -->
      <ComboBox x:Name="status" TabIndex="14" ItemTemplate="{StaticResource BaseObjectItemPictTextTemplate}" ItemsSource="{Binding ParentCollection.ParentStorage.ScheduleStorage.StatusStorage.Statuses}" SelectedItem="{Binding Path=BusyStatus, Mode=TwoWay}"
      Header="{Binding showTimeAs}" MinWidth="140" Padding="0" Margin="5" />
      <ComboBox Grid.Row="1" TabIndex="15" ItemTemplate="{StaticResource BaseObjectItemPictTextTemplate}" ItemsSource="{Binding ParentCollection.ParentStorage.ScheduleStorage.LabelStorage.Labels}" SelectedItem="{Binding Path=Label, Mode=TwoWay}" Header="{Binding label}"
      MinWidth="140" Padding="0" Margin="5" />
      <CheckBox IsChecked="{Binding Path=Private, Mode=TwoWay}" Margin="5" TabIndex="16" Content="{Binding private_}" />
    </StackPanel>
    <TextBox x:Name="body" Text="{Binding Body, Mode=TwoWay}" Grid.Column="1" Grid.Row="1" TextWrapping="Wrap" TabIndex="3" AcceptsReturn="True" IsSpellCheckEnabled="True" IsColorFontEnabled="True" ScrollViewer.HorizontalScrollMode="Disabled" ScrollViewer.VerticalScrollBarVisibility="Auto"
    BorderThickness="0" Margin="30,0,0,0" PlaceholderText="Add text" Foreground="#FFD6FFD0">
      <TextBox.Background>
        <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
          <GradientStop Color="#FF9DEE68" Offset="0.345" />
          <GradientStop Color="#FF68914D" Offset="0.79" />
          <GradientStop Color="#FF4C8029" Offset="0.103" />
        </LinearGradientBrush>
      </TextBox.Background>
    </TextBox>
  </Grid>
</UserControl>

using C1.C1Schedule;
using C1.Xaml;
using C1.Xaml.Schedule;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Runtime.InteropServices.WindowsRuntime;
using Windows.Foundation;
using Windows.Foundation.Collections;
using Windows.UI;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Controls.Primitives;
using Windows.UI.Xaml.Data;
using Windows.UI.Xaml.Input;
using Windows.UI.Xaml.Media;
using Windows.UI.Xaml.Navigation;

// The User Control item template is documented at http://go.microsoft.com/fwlink/?LinkId=234236

namespace CustomizeEditAppointmentControl_UWP
{
    public sealed partial class EditAppointmentControl : UserControl
    {
        #region ** fields
        private C1FullscreenDialog _parentWindow = null;
        private Appointment _appointment;
        private C1Scheduler _scheduler;
        private bool _isLoaded = false;
        private TimeSpan _defaultStart;
        private TimeSpan _defaultDuration;
        private bool _updatingRecurrence = false;
        #endregion

        #region ** initialization
 /// Creates the new instance of the class. /// 
        public EditAppointmentControl()
        {
            this.InitializeComponent();

            // fill recurrence combo
            List recTypes = new List();
            recTypes.Add(C1.Silverlight.Schedule.Resources.C1_Schedule_EditAppointment.recOnce);
            recTypes.Add(C1.Silverlight.Schedule.Resources.C1_Schedule_EditAppointment.recDaily);
            recTypes.Add(C1.Silverlight.Schedule.Resources.C1_Schedule_EditAppointment.recWeekdays);
            recTypes.Add(C1.Silverlight.Schedule.Resources.C1_Schedule_EditAppointment.recMonday);
            recTypes.Add(C1.Silverlight.Schedule.Resources.C1_Schedule_EditAppointment.recTuesday);
            recTypes.Add(C1.Silverlight.Schedule.Resources.C1_Schedule_EditAppointment.recWeekly);
            recTypes.Add(C1.Silverlight.Schedule.Resources.C1_Schedule_EditAppointment.recMonthly);
            recTypes.Add(C1.Silverlight.Schedule.Resources.C1_Schedule_EditAppointment.recYearly);
            howOften.ItemsSource = recTypes;
        }

        private void OnDataContextChanged(FrameworkElement sender, DataContextChangedEventArgs args)
        {
            if (DataContext != null)
            {
                _appointment = DataContext as Appointment;
                _defaultStart = _appointment.AllDayEvent ? TimeSpan.FromHours(8) : _appointment.Start.TimeOfDay;
                _defaultDuration = _appointment.AllDayEvent ? TimeSpan.FromMinutes(30) : _appointment.Duration;
                if (_appointment != null)
                {
                    if (_appointment.ParentCollection != null)
                    {
                        //_scheduler = _appointment.ParentCollection.ParentStorage.ScheduleStorage.Scheduler;
                        _scheduler = MainPage.scheduler;
                        if (_appointment.AllDayEvent)
                        {
                            _defaultStart = _scheduler.CalendarHelper.StartDayTime;
                            _defaultDuration = _scheduler.CalendarHelper.Info.TimeScale;
                        }
                    }
                    UpdateWindowHeader();
                    UpdateRecurrenceState();
                    reminderTime.Value = _appointment.ReminderTimeBeforeStart;
                    UpdateCalendars();
                    if (_appointment.AllDayEvent)
                    {
                        startCalendar.EditMode = endCalendar.EditMode = C1.Xaml.DateTimeEditors.C1DateTimePickerEditMode.Date;
                    }
                    else
                    {
                        startCalendar.EditMode = endCalendar.EditMode = C1.Xaml.DateTimeEditors.C1DateTimePickerEditMode.DateTime;
                    }
                }
            }
        }

        private void EditAppointmentControl_Loaded(object sender, Windows.UI.Xaml.RoutedEventArgs e)
        {
            if (!_isLoaded)
            {
                _parentWindow = (C1FullscreenDialog)VTreeHelper.GetParentOfType(this, typeof(C1FullscreenDialog));
                if (_parentWindow != null && _appointment != null)
                {
                    _parentWindow.Unloaded += _parentWindow_Unloaded;
                    _isLoaded = true;
                }
            }
            subject.Focus(Windows.UI.Xaml.FocusState.Programmatic);
        }
        void _parentWindow_Unloaded(object sender, RoutedEventArgs e)
        {
            _parentWindow.Unloaded -= _parentWindow_Unloaded;
            DataContext = null;
            _scheduler = null;
            _appointment = null;
            _parentWindow = null;
        }
        #endregion

        #region ** object model
 /// Gets or sets an object representing current DataContext. /// 
        public Appointment Appointment
        {
            get
            {
                return _appointment;
            }
            set
            {
                _appointment = value;
                if (_parentWindow != null)
                {
                    _parentWindow.Content =
                    _parentWindow.DataContext = value;
                }
                DataContext = value;
                if (_appointment != null)
                {
                    UpdateWindowHeader();
                    UpdateRecurrenceState();
                }
            }
        }

 /// Gets a value which can be used as an Appointment window header. /// 
        public string Header
        {
            get { return (string)GetValue(HeaderProperty); }
            private set { SetValue(HeaderProperty, value); }
        }

 /// Identifies the dependency property. /// 
        private static readonly DependencyProperty HeaderProperty =
            DependencyProperty.Register("Header", typeof(string),
            typeof(EditAppointmentControl), new PropertyMetadata(string.Empty));
        #endregion

        #region ** recurrence properties
        private void UpdateRecurrenceState()
        {
            if (_appointment == null || _updatingRecurrence)
            {
                return;
            }
            if (_appointment.RecurrenceState == RecurrenceStateEnum.NotRecurring)
            {
                recPanel.Visibility = Windows.UI.Xaml.Visibility.Collapsed;
                howOften.IsEnabled = true;
                howOften.SelectedIndex = 0;
            }
            else
            {
                RecurrencePattern pattern = _appointment.GetRecurrencePattern();
                switch (pattern.RecurrenceType)
                {
                    case RecurrenceTypeEnum.Daily:
                        howOften.SelectedIndex = 1;
                        break;
                    case RecurrenceTypeEnum.Workdays:
                        howOften.SelectedIndex = 2;
                        break;
                    case RecurrenceTypeEnum.Weekly:
                        WeekDaysEnum mask = pattern.DayOfWeekMask;
                        if ((mask & WeekDaysEnum.Monday) == WeekDaysEnum.Monday
                            && (mask & WeekDaysEnum.Wednesday) == WeekDaysEnum.Wednesday
                            && (mask & WeekDaysEnum.Friday) == WeekDaysEnum.Friday
                            && (mask & WeekDaysEnum.Tuesday) != WeekDaysEnum.Tuesday)
                        {
                            howOften.SelectedIndex = 3;
                        }
                        else if ((mask & WeekDaysEnum.Tuesday) == WeekDaysEnum.Tuesday && (mask & WeekDaysEnum.Thursday) == WeekDaysEnum.Thursday)
                        {
                            howOften.SelectedIndex = 4;
                        }
                        else
                        {
                            howOften.SelectedIndex = 5;
                        }
                        break;
                    case RecurrenceTypeEnum.Monthly:
                        howOften.SelectedIndex = 6;
                        break;
                    case RecurrenceTypeEnum.Yearly:
                        howOften.SelectedIndex = 7;
                        break;
                }
                if (_appointment.RecurrenceState == RecurrenceStateEnum.Master)
                {
                    recPanel.Visibility = Windows.UI.Xaml.Visibility.Visible;
                    howOften.IsEnabled = true;
                    recEndDate.DateTime = pattern.PatternEndDate;
                    recEndDateSet.IsChecked = !pattern.NoEndDate;
                }
                else
                {
                    // occurrence
                    recPanel.Visibility = Windows.UI.Xaml.Visibility.Collapsed;
                    howOften.IsEnabled = false;
                }
            }
        }
        private void howOften_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            if (_appointment == null)
            {
                return;
            }
            _updatingRecurrence = true;
            if (howOften.SelectedIndex == 0)
            {
                _appointment.ClearRecurrencePattern();
            }
            else
            {
                RecurrencePattern pattern = _appointment.GetRecurrencePattern();
                switch (howOften.SelectedIndex)
                {
                    case 1:
                        pattern.RecurrenceType = RecurrenceTypeEnum.Daily;
                        break;
                    case 2:
                        pattern.RecurrenceType = RecurrenceTypeEnum.Workdays;
                        break;
                    case 3:
                        pattern.RecurrenceType = RecurrenceTypeEnum.Weekly;
                        pattern.DayOfWeekMask = WeekDaysEnum.Monday | WeekDaysEnum.Wednesday | WeekDaysEnum.Friday;
                        break;
                    case 4:
                        pattern.RecurrenceType = RecurrenceTypeEnum.Weekly;
                        pattern.DayOfWeekMask = WeekDaysEnum.Tuesday | WeekDaysEnum.Thursday;
                        break;
                    case 5:
                        pattern.RecurrenceType = RecurrenceTypeEnum.Weekly;
                        pattern.DayOfWeekMask = (WeekDaysEnum)Enum.Parse(typeof(WeekDaysEnum), Enum.GetName(typeof(DayOfWeek), _appointment.Start.DayOfWeek), true);
                        break;
                    case 6:
                        pattern.RecurrenceType = RecurrenceTypeEnum.Monthly;
                        pattern.DayOfMonth = _appointment.Start.Day;
                        break;
                    case 7:
                        pattern.RecurrenceType = RecurrenceTypeEnum.Yearly;
                        pattern.DayOfMonth = _appointment.Start.Day;
                        pattern.MonthOfYear = _appointment.Start.Month;
                        break;
                }
            }
            _updatingRecurrence = false;
            UpdateRecurrenceState();
            UpdateCalendars();
        }
        private void recEndDateSet_Unchecked(object sender, RoutedEventArgs e)
        {
            if (_appointment != null && _appointment.RecurrenceState == RecurrenceStateEnum.Master)
            {
                RecurrencePattern pattern = _appointment.GetRecurrencePattern();
                pattern.NoEndDate = true;
            }
        }
        private void recEndDateSet_Checked(object sender, RoutedEventArgs e)
        {
            if (_appointment != null && _appointment.RecurrenceState == RecurrenceStateEnum.Master)
            {
                RecurrencePattern pattern = _appointment.GetRecurrencePattern();
                pattern.NoEndDate = false;
                pattern.PatternEndDate = recEndDate.DateTime.Value;
            }
        }
        private void recEndDate_DateTimeChanged(object sender, object e)
        {
            if (_appointment != null && _appointment.RecurrenceState == RecurrenceStateEnum.Master)
            {
                RecurrencePattern pattern = _appointment.GetRecurrencePattern();
                pattern.PatternEndDate = recEndDate.DateTime.Value;
            }
        }
        #endregion
        //-----------------------------------------------------------------------------------
        #region ** times
        private void startCalendar_DateTimeChanged(object sender, object e)
        {
            if (_appointment != null)
            {
                _appointment.Start = startCalendar.DateTime.Value;
                if (_appointment.RecurrenceState == RecurrenceStateEnum.Master)
                {
                    RecurrencePattern pattern = _appointment.GetRecurrencePattern();
                    pattern.PatternStartDate = startCalendar.DateTime.Value;
                    pattern.StartTime = _appointment.Start;
                }
                UpdateCalendars();
            }
        }
        private void chkAllDay_Checked(object sender, RoutedEventArgs e)
        {
            if (_appointment.RecurrenceState == RecurrenceStateEnum.Master)
            {
                RecurrencePattern pattern = _appointment.GetRecurrencePattern();
                pattern.StartTime = _appointment.Start;
                pattern.Duration = _appointment.Duration;
            }
            startCalendar.EditMode = endCalendar.EditMode = C1.Xaml.DateTimeEditors.C1DateTimePickerEditMode.Date;
            UpdateWindowHeader();
            UpdateCalendars();
        }
        private void chkAllDay_Unchecked(object sender, RoutedEventArgs e)
        {
            _appointment.Start = _appointment.Start.Add(_defaultStart);
            _appointment.Duration = _defaultDuration;
            if (_appointment.RecurrenceState == RecurrenceStateEnum.Master)
            {
                RecurrencePattern pattern = _appointment.GetRecurrencePattern();
                pattern.StartTime = _appointment.Start;
                pattern.Duration = _appointment.Duration;
            }
            startCalendar.EditMode = endCalendar.EditMode = C1.Xaml.DateTimeEditors.C1DateTimePickerEditMode.DateTime;
            UpdateWindowHeader();
            UpdateCalendars();
        }
        private void endCalendar_DateTimeChanged(object sender, object e)
        {
            if (_appointment != null)
            {
                DateTime end = endCalendar.DateTime.Value;
                if (_appointment.AllDayEvent)
                {
                    end = end.AddDays(1);
                }
                if (end < Appointment.Start)
                {
                    endCalendar.BorderBrush = endCalendar.Foreground = new SolidColorBrush(Colors.Red);
                    endCalendar.BorderThickness = new Thickness(2);
                    ToolTipService.SetToolTip(endCalendar, C1.Silverlight.Schedule.Resources.C1_Schedule_Exceptions.StartEndValidationFailed);
                    saveButton.IsEnabled = false;
                }
                else
                {
                    _appointment.End = end;
                    if (!saveButton.IsEnabled)
                    {
                        saveButton.IsEnabled = true;
                        endCalendar.ClearValue(Control.ForegroundProperty);
                        endCalendar.ClearValue(Control.BorderBrushProperty);
                        endCalendar.ClearValue(Control.BorderThicknessProperty);
                        endCalendar.ClearValue(ToolTipService.ToolTipProperty);
                    }
                }
                if (_appointment.RecurrenceState == RecurrenceStateEnum.Master)
                {
                    RecurrencePattern pattern = _appointment.GetRecurrencePattern();
                    pattern.StartTime = _appointment.Start;
                    pattern.Duration = _appointment.Duration;
                }
            }
        }
        private void UpdateCalendars()
        {
            if (_appointment.RecurrenceState == RecurrenceStateEnum.Master)
            {
                RecurrencePattern pattern = _appointment.GetRecurrencePattern();
                startCalendar.DateTime = pattern.StartTime;
                DateTime end = pattern.EndTime;
                if (_appointment.AllDayEvent)
                {
                    end = end.AddDays(-1);
                }
                endCalendar.DateTime = end;
            }
            else
            {
                startCalendar.DateTime = _appointment.Start;
                DateTime end = _appointment.End;
                if (_appointment.AllDayEvent)
                {
                    end = end.AddDays(-1);
                }
                endCalendar.DateTime = end;
            }
            if (!saveButton.IsEnabled)
            {
                saveButton.IsEnabled = true;
                endCalendar.ClearValue(Control.BackgroundProperty);
                endCalendar.ClearValue(Control.ForegroundProperty);
                endCalendar.ClearValue(Control.BorderBrushProperty);
                endCalendar.ClearValue(Control.BorderThicknessProperty);
                endCalendar.ClearValue(ToolTipService.ToolTipProperty);
            }
        }
        #endregion
        //-----------------------------------------------------------------------------------
        #region ** misc props
        private void UpdateWindowHeader()
        {
            string result;
            string subject = string.Empty;
            bool allDay = false;
            if (_appointment != null)
            {
                subject = _appointment.Subject;
                allDay = chkAllDay.IsChecked.Value;
            }
            if (String.IsNullOrEmpty(subject))
            {
                subject = C1.Silverlight.Schedule.Resources.C1_Schedule_EditAppointment.Untitled;
            }
            if (allDay)
            {
                result = C1.Silverlight.Schedule.Resources.C1_Schedule_EditAppointment.Event + " - " + subject;
            }
            else
            {
                result = C1.Silverlight.Schedule.Resources.C1_Schedule_EditAppointment.Appointment + " - " + subject;
            }
            Header = result;
        }
        private void subject_TextChanged(object sender, TextChangedEventArgs e)
        {
            subject.GetBindingExpression(TextBox.TextProperty).UpdateSource();
            UpdateWindowHeader();
        }
        #endregion
        //-----------------------------------------------------------------------------------
        #region ** navigation
        private void saveButton_Click(object sender, RoutedEventArgs e)
        {
            _appointment.ReminderTimeBeforeStart = reminderTime.Value.Value;
            subject.Focus(Windows.UI.Xaml.FocusState.Programmatic);
            location.GetBindingExpression(TextBox.TextProperty).UpdateSource();
            body.GetBindingExpression(TextBox.TextProperty).UpdateSource();
            _parentWindow.DialogResult = MessageBoxResult.OK;
        }
        private void backButton_Click(object sender, RoutedEventArgs e)
        {
            _parentWindow.DialogResult = MessageBoxResult.Cancel;
        }
#pragma warning disable 1591
        protected override void OnKeyDown(Windows.UI.Xaml.Input.KeyRoutedEventArgs e)
        {
            if (e.Key == Windows.System.VirtualKey.Escape)
            {
                backButton_Click(null, null);
            }
            else if (e.Key == Windows.System.VirtualKey.S && KeyboardUtil.Ctrl)
            {
                saveButton_Click(null, null);
            }
            else if (e.Key == Windows.System.VirtualKey.D && KeyboardUtil.Ctrl)
            {
                _scheduler.DeleteAppointment(_appointment.Tag as Appointment);
            }
            base.OnKeyDown(e);
        }
#pragma warning restore 1591
        #endregion
    }
}