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How to show events in custom agenda view using list view in Xamarin.Forms Calendar?
SfCalendar allows you to display the calendar events in custom AgendaView.
This article explains how to display the calendar events in custom AgendaView using list view.
Step 1: Set ShowInlineEvents to false to add the custom agenda view; it restricts the opening of default calendar inline view.
<syncfusion:SfCalendar x:Name="Calendar" ShowInlineEvents="false"/>
Step 2: Bind the calendar events, namely StartTime, EndTime and Subject to text label to display the appointments in ListView as custom agenda view for calendar.
<?xml version="1.0" encoding="utf-8" ?>
<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
xmlns:local="clr-namespace:CustomListAgendaView"
xmlns:syncfusion="clr-namespace:Syncfusion.SfCalendar.XForms;assembly=Syncfusion.SfCalendar.XForms"
x:Class="CustomListAgendaView.MainPage">
<ContentPage.Resources>
<ResourceDictionary>
<local:DateTimeToStringConverter x:Key="stringConverter"/>
</ResourceDictionary>
</ContentPage.Resources>
<ContentPage.Behaviors>
<local:CalendarBehavior/>
</ContentPage.Behaviors>
<StackLayout Padding="0,30,0,0">
<syncfusion:SfCalendar x:Name="Calendar" ShowInlineEvents="false" HorizontalOptions="FillAndExpand" VerticalOptions="FillAndExpand"/>
<ListView x:Name="ListView">
<ListView.ItemTemplate>
<DataTemplate>
<ViewCell>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<StackLayout Orientation="Vertical" Grid.Column="0">
<Label Text = "{Binding StartTime, Converter={StaticResource stringConverter}}" FontSize="14" />
<Label Text="{Binding EndTime, Converter={StaticResource stringConverter}}" FontSize="14"/>
</StackLayout>
<StackLayout Orientation="Vertical" Padding="40,0,0,0" Grid.Column="1">
<Label Text = "{Binding Subject}" FontSize="20" FontAttributes="Bold" />
</StackLayout>
</Grid>
</ViewCell>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
</StackLayout>
</ContentPage>
By using the SelectionChanged event of SfCalendar, calendar events are bound to ListView ItemSource based on the date selected.
namespace CustomListAgendaView
{
public class CalendarBehavior : Behavior<ContentPage>
{
private SfCalendar calendar;
ListView listView;
private CalendarEventCollection calendarInlineEvents;
private ObservableCollection<string> meetingSubjectCollection;
private ObservableCollection<Color> colorCollection;
public CalendarBehavior()
{
calendarInlineEvents = new CalendarEventCollection();
this.AddAppointmentDetails();
this.AddAppointments();
}
protected override void OnAttachedTo(ContentPage bindable)
{
var page = bindable as Page;
calendar = page.FindByName<SfCalendar>("Calendar");
listView = page.FindByName<ListView>("ListView");
calendar.SelectionChanged += Calendar_SelectionChanged;
listView.ItemsSource = GetSelectedDateAppointments(DateTime.Now.Date);
// Setting data source for 3 months.
calendar.DataSource = calendarInlineEvents;
base.OnAttachedTo(bindable);
}
protected override void OnDetachingFrom(ContentPage bindable)
{
calendar.SelectionChanged -= Calendar_SelectionChanged;
base.OnDetachingFrom(bindable);
}
/// <summary>
/// Calendars selection changed.
/// </summary>
/// <param name="sender">Sender.</param>
/// <param name="e">E.</param>
void Calendar_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
// Setting ItemSource for ListView based on appointment selection.
listView.ItemsSource = GetSelectedDateAppointments(calendar.SelectedDate);
}
/// <summary>
/// Gets the selected date appointments.
/// </summary>
/// <returns>The selected date appointments.</returns>
/// <param name="date">Date.</param>
public CalendarEventCollection GetSelectedDateAppointments(DateTime? date)
{
CalendarEventCollection selectedDateAppointments = new CalendarEventCollection();
for (int i = 0; i < calendarInlineEvents.Count; i++)
{
DateTime startDate = calendarInlineEvents[i].StartTime;
if (date.Value.Day == startDate.Day && date.Value.Month == startDate.Month && date.Value.Year == startDate.Year)
{
selectedDateAppointments.Add(calendarInlineEvents[i]);
}
}
return selectedDateAppointments;
}
/// <summary>
/// Adds the appointment details.
/// </summary>
private void AddAppointmentDetails()
{
meetingSubjectCollection = new ObservableCollection<string>();
meetingSubjectCollection.Add("General Meeting");
meetingSubjectCollection.Add("Plan Execution");
meetingSubjectCollection.Add("Project Plan");
meetingSubjectCollection.Add("Consulting");
meetingSubjectCollection.Add("Support");
meetingSubjectCollection.Add("Development Meeting");
meetingSubjectCollection.Add("Scrum");
meetingSubjectCollection.Add("Project Completion");
meetingSubjectCollection.Add("Release updates");
meetingSubjectCollection.Add("Performance Check");
colorCollection = new ObservableCollection<Color>();
colorCollection.Add(Color.FromHex("#FFA2C139"));
colorCollection.Add(Color.FromHex("#FFD80073"));
colorCollection.Add(Color.FromHex("#FF1BA1E2"));
colorCollection.Add(Color.FromHex("#FFE671B8"));
colorCollection.Add(Color.FromHex("#FFF09609"));
colorCollection.Add(Color.FromHex("#FF339933"));
colorCollection.Add(Color.FromHex("#FF00ABA9"));
colorCollection.Add(Color.FromHex("#FFE671B8"));
colorCollection.Add(Color.FromHex("#FF1BA1E2"));
colorCollection.Add(Color.FromHex("#FFD80073"));
colorCollection.Add(Color.FromHex("#FFA2C139"));
colorCollection.Add(Color.FromHex("#FFA2C139"));
colorCollection.Add(Color.FromHex("#FFD80073"));
colorCollection.Add(Color.FromHex("#FF339933"));
colorCollection.Add(Color.FromHex("#FFE671B8"));
colorCollection.Add(Color.FromHex("#FF00ABA9"));
}
/// <summary>
/// Adds appointments.
/// </summary>
private void AddAppointments()
{
var today = DateTime.Now.Date;
var random = new Random();
for (int month = -1; month < 2; month++)
{
for (int day = -5; day < 5; day++)
{
for (int count = 0; count < 2; count++)
{
var appointment = new CalendarInlineEvent();
appointment.Subject = meetingSubjectCollection[random.Next(7)];
appointment.Color = colorCollection[random.Next(10)];
appointment.StartTime = today.AddMonths(month).AddDays(random.Next(1, 28)).AddHours(random.Next(9, 18));
appointment.EndTime = appointment.StartTime.AddHours(2);
this.calendarInlineEvents.Add(appointment);
}
}
}
}
}
/// <summary>
/// Date time to string converter.
/// </summary>
public class DateTimeToStringConverter : IValueConverter
{
object IValueConverter.Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
DateTime dateTime = Convert.ToDateTime(value);
return dateTime.ToString("hh:mm tt");
}
object IValueConverter.ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
{
throw new NotImplementedException();
}
}
}
