Declined
Last Updated:
19 Aug 2019 09:29
by ADMIN
Oscar
Created on:
18 Aug 2019 16:45
Category:
Calendar & Scheduling
Type:
Bug Report
RadCalendar - DayView: Overlapping Appointments not displayed correctly - Android
Hi,
I have been using Telerik controls for the last 4 years in WPF. One of the controls widely used is the RadScheduleView in which I manage customer appointments in hair dresser salons. Recently I tried to implement the same functionality on Mobile Apps using Xamarin.
Some of the appointments generated by users contain overlapping times since they are serviced by different employees. This functionality in WPF is managed perfectly using RadScheduleView. Now I am using the same data by downloading it into a MobileApp (for now Android App) and reproducing similar appointments but on RadCalendar. Every time an appointment have overlaps, the way system is recreating it on the calendar is misleading and sometimes appointments are also hidden.
The following is a Code snippet that also produce the same results.
Steps to reproduce:
1. Appointment View module that inherits from Telerik.XamarinForms.Input.Appointment and add additional properties to manage appointments:
public class AppointmentViewModel : Telerik.XamarinForms.Input.Appointment
{
public Int32 PK { get; set; } = -1;
public String DisplayStartTime
{
get
{
return StartDate.ToString("HH:mm");
}
}
public String DisplayEndTime
{
get
{
return EndDate.ToString("HH:mm");
}
}
public double AppointmentDate
{
get
{
return StartDate.Date.ToOADate();
}
}
public string AppointmentDisplayDate
{
get
{
return StartDate.Date.ToString("ddd dd MMM");
}
}
}Note: To render appointments, I am still using default properties of the class Telerik.XamarinForms.Input.Appointment, see point 3.
2. Create Page (XAML) with calendar and a refresh button:
<?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:telerikPrimitives="clr-namespace:Telerik.XamarinForms.Primitives;assembly=Telerik.XamarinForms.Primitives"
xmlns:zxing="clr-namespace:ZXing.Net.Mobile.Forms;assembly=ZXing.Net.Mobile.Forms"
xmlns:telerikInput="clr-namespace:Telerik.XamarinForms.Input;assembly=Telerik.XamarinForms.Input"
xmlns:telerikGrid="clr-namespace:Telerik.XamarinForms.DataGrid;assembly=Telerik.XamarinForms.DataGrid"
xmlns:helper="clr-namespace:ProductManager.Helper_Code"
xmlns:telerikDataControls="clr-namespace:Telerik.XamarinForms.DataControls;assembly=Telerik.XamarinForms.DataControls"
xmlns:telerikListView="clr-namespace:Telerik.XamarinForms.DataControls.ListView;assembly=Telerik.XamarinForms.DataControls"
x:Class="ProductManager.Pages.pgAppointments" Appearing="ContentPage_Appearing" Disappearing="ContentPage_Disappearing" >
<ContentPage.Content>
<Gride HorizontalOptions="Fill" VerticalOptions="Fill" Margin="0,0">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="*" />
<RowDefinition Height="Auto" />
</Grid.RowDefinitions>
<telerikInput:RadCalendar x:Name="cntAppoints"
Grid.Row="0"
VerticalOptions="Fill" HorizontalOptions="Fill"
GridLinesDisplayMode="Show"
ViewMode="Day"
DisplayDateChanged="CntAppoints_DisplayDateChanged"
SelectionMode="Single" SelectionChanged="CntAppoints_SelectionChanged"
NativeControlLoaded="CntAppoints_NativeControlLoaded"
TimeSlotTapped="CntAppoints_TimeSlotTapped"
ViewChanged="CntAppoints_ViewChanged" CellTapped="CntAppoints_CellTapped"
SchedulingUiEnabled="True" AppointmentTapped="CntAppoints_AppointmentTapped" >
<telerikInput:RadCalendar.DayViewSettings>
<telerikInput:DayViewSettings DayStartTime="00:00:00"
DayEndTime="23:40:00"
TimelineInterval="15" />
</telerikInput:RadCalendar.DayViewSettings>
<telerikInput:RadCalendar.DayViewStyle>
<telerikInput:DayViewStyle
AllDayAppointmentFontSize="10"
TimelineLabelsTextColor="DarkGray"
TimelineLabelsFontSize="10"
AppointmentFontSize="10"
AppointmentDetailsFontSize="8"/>
</telerikInput:RadCalendar.DayViewStyle>
<telerikInput:RadCalendar.MultiDayViewSettings>
<telerikInput:MultiDayViewSettings DayStartTime="00:00:00"
DayEndTime="23:40:00"
TimelineInterval="15" />
</telerikInput:RadCalendar.MultiDayViewSettings>
<telerikInput:RadCalendar.MultiDayViewStyle>
<telerikInput:MultiDayViewStyle
AllDayAppointmentFontSize="10"
TimelineLabelsTextColor="DarkGray"
TimelineLabelsFontSize="10"
AppointmentFontSize="10"
AppointmentDetailsFontSize="8"/>
</telerikInput:RadCalendar.MultiDayViewStyle>
</telerikInput:RadCalendar>
<telerikInput:RadButton x:Name="btnRefresh"
Clicked="BtnRefresh_Clicked" HorizontalContentAlignment="End" VerticalContentAlignment="Center"
HorizontalOptions="Center" VerticalOptions="Center"
BackgroundColor="Transparent"
Grid.Row="1" Text="Refresh" />
</Grid>
</ContentPage.Content>
</ContentPage>
3. Code Behind the Refresh Button :
private void BtnRefresh_Clicked(object sender, EventArgs e)
{
cntAppoints.DisplayDate = DateTime.Parse("11/05/2019");
ObservableCollection<AppointmentViewModel> apps = new ObservableCollection<AppointmentViewModel>() {
new AppointmentViewModel()
{
PK =1,
Title="Customer 1",
StartDate=DateTime.Parse("2019-05-11T08:00:00"),
EndDate=DateTime.Parse("2019-05-11T08:45:00"),
Detail="Station: Station 1"
},
new AppointmentViewModel()
{
PK =2,
Title="Customer 2",
StartDate=DateTime.Parse("2019-05-11T08:00:00"),
EndDate=DateTime.Parse("2019-05-11T18:00:00"),
Detail="Station: STATION 3",
IsAllDay=true
},
new AppointmentViewModel()
{
PK =3,
Title="Customer 3",
StartDate=DateTime.Parse("2019-05-11T08:00:00"),
EndDate=DateTime.Parse("2019-05-11T08:30:00"),
Detail="Station: STATION 4"
},
new AppointmentViewModel()
{
PK =4,
Title="Customer 4",
StartDate=DateTime.Parse("2019-05-11T08:30:00"),
EndDate=DateTime.Parse("2019-05-11T08:45:00"),
Detail="Station: STATION 4"
},
new AppointmentViewModel()
{
PK =5,
Title="Customer 5",
StartDate=DateTime.Parse("2019-05-11T09:00:00"),
EndDate=DateTime.Parse("2019-05-11T09:30:00"),
Detail="Station: Station 1"
},
new AppointmentViewModel()
{
PK =6,
Title="Customer 6",
StartDate=DateTime.Parse("2019-05-11T09:00:00"),
EndDate=DateTime.Parse("2019-05-11T09:15:00"),
Detail="Station: STATION 4"
},
new AppointmentViewModel()
{
PK =7,
Title="Customer 7",
StartDate=DateTime.Parse("2019-05-11T09:15:00"),
EndDate=DateTime.Parse("2019-05-11T10:00:00"),
Detail="Station: Station 1"
},
new AppointmentViewModel()
{
PK =8,
Title="Customer 8",
StartDate=DateTime.Parse("2019-05-11T09:30:00"),
EndDate=DateTime.Parse("2019-05-11T09:45:00"),
Detail="Station: Station 1"
},
new AppointmentViewModel()
{
PK =9,
Title="Customer 9",
StartDate=DateTime.Parse("2019-05-11T09:45:00"),
EndDate=DateTime.Parse("2019-05-11T10:30:00"),
Detail="Station: Station 1"
},
new AppointmentViewModel()
{
PK =10,
Title="Customer 10",
StartDate=DateTime.Parse("2019-05-11T10:00:00"),
EndDate=DateTime.Parse("2019-05-11T10:30:00"),
Detail="Station: STATION 4"
},
new AppointmentViewModel()
{
PK =11,
Title="Customer 11",
StartDate=DateTime.Parse("2019-05-11T11:30:00"),
EndDate=DateTime.Parse("2019-05-11T12:15:00"),
Detail="Station: Station 1"
},
new AppointmentViewModel()
{
PK =12,
Title="Customer 12",
StartDate=DateTime.Parse("2019-05-11T12:00:00"),
EndDate=DateTime.Parse("2019-05-11T12:45:00"),
Detail="Station: STATION 4"
},
new AppointmentViewModel()
{
PK =13,
Title="Customer 13",
StartDate=DateTime.Parse("2019-05-11T12:30:00"),
EndDate=DateTime.Parse("2019-05-11T13:15:00"),
Detail="Station: Station 1"
},
new AppointmentViewModel()
{
PK =14,
Title="Customer 14",
StartDate=DateTime.Parse("2019-05-11T12:30:00"),
EndDate=DateTime.Parse("2019-05-11T13:00:00"),
Detail="Station: STATION 4"
},
new AppointmentViewModel()
{
PK =15,
Title="Customer 15",
StartDate=DateTime.Parse("2019-05-11T13:00:00"),
EndDate=DateTime.Parse("2019-05-11T13:15:00"),
Detail="Station: STATION 2"
},
new AppointmentViewModel()
{
PK =16,
Title="Customer 16",
StartDate=DateTime.Parse("2019-05-11T13:15:00"),
EndDate=DateTime.Parse("2019-05-11T13:30:00"),
Detail="Station: Station 1"
},
new AppointmentViewModel()
{
PK =17,
Title="Customer 17",
StartDate=DateTime.Parse("2019-05-11T13:15:00"),
EndDate=DateTime.Parse("2019-05-11T13:30:00"),
Detail="Station: STATION 4"
},
new AppointmentViewModel()
{
PK =18,
Title="Customer 18",
StartDate=DateTime.Parse("2019-05-11T13:30:00"),
EndDate=DateTime.Parse("2019-05-11T14:00:00"),
Detail="Station: Station 1"
},
new AppointmentViewModel()
{
PK =19,
Title="Customer 19",
StartDate=DateTime.Parse("2019-05-11T13:30:00"),
EndDate=DateTime.Parse("2019-05-11T14:00:00"),
Detail="Station: STATION 4"
},
new AppointmentViewModel()
{
PK =20,
Title="Customer 20",
StartDate=DateTime.Parse("2019-05-11T14:00:00"),
EndDate=DateTime.Parse("2019-05-11T14:30:00"),
Detail="Station: Station 1"
},
new AppointmentViewModel()
{
PK =21,
Title="Customer 21",
StartDate=DateTime.Parse("2019-05-11T14:30:00"),
EndDate=DateTime.Parse("2019-05-11T15:00:00"),
Detail="Station: Station 1"
},
new AppointmentViewModel()
{
PK =22,
Title="Customer 22",
StartDate=DateTime.Parse("2019-05-11T14:30:00"),
EndDate=DateTime.Parse("2019-05-11T15:00:00"),
Detail="Station: STATION 4"
},
new AppointmentViewModel()
{
PK =23,
Title="Customer 23",
StartDate=DateTime.Parse("2019-05-11T15:00:00"),
EndDate=DateTime.Parse("2019-05-11T15:30:00"),
Detail="Station: Station 1"
},
new AppointmentViewModel()
{
PK =24,
Title="Customer 24",
StartDate=DateTime.Parse("2019-05-11T15:00:00"),
EndDate=DateTime.Parse("2019-05-11T15:45:00"),
Detail="Station: Station 1nServices: head massage and shampoo, short to medium blowdry"
},
new AppointmentViewModel()
{
PK =25,
Title="Customer 25",
StartDate=DateTime.Parse("2019-05-11T15:15:00"),
EndDate=DateTime.Parse("2019-05-11T15:30:00"),
Detail="Station: STATION 2"
},
new AppointmentViewModel()
{
PK =26,
Title="Customer 26",
StartDate=DateTime.Parse("2019-05-11T15:30:00"),
EndDate=DateTime.Parse("2019-05-11T16:00:00"),
Detail="Station: STATION 4"
},
new AppointmentViewModel()
{
PK =27,
Title="Customer 27",
StartDate=DateTime.Parse("2019-05-11T15:45:00"),
EndDate=DateTime.Parse("2019-05-11T16:15:00"),
Detail="Station: STATION 2"
},
new AppointmentViewModel()
{
PK =28,
Title="Customer 28",
StartDate=DateTime.Parse("2019-05-11T16:00:00"),
EndDate=DateTime.Parse("2019-05-11T16:30:00"),
Detail="Station: STATION 4"
},
new AppointmentViewModel()
{
PK =29,
Title="Customer 29",
StartDate=DateTime.Parse("2019-05-11T16:30:00"),
EndDate=DateTime.Parse("2019-05-11T16:45:00"),
Detail="Station: Station 1"
},
new AppointmentViewModel()
{
PK =30,
Title="Customer 30",
StartDate=DateTime.Parse("2019-05-11T16:45:00"),
EndDate=DateTime.Parse("2019-05-11T17:15:00"),
Detail="Station: Station 1"
},
new AppointmentViewModel()
{
PK =31,
Title="Customer 31",
StartDate=DateTime.Parse("2019-05-11T17:00:00"),
EndDate=DateTime.Parse("2019-05-11T17:30:00"),
Detail="Station: STATION 4"
},
new AppointmentViewModel()
{
PK =32,
Title="Customer 32",
StartDate=DateTime.Parse("2019-05-11T17:15:00"),
EndDate=DateTime.Parse("2019-05-11T17:45:00"),
Detail="Station: Station 1"
},
new AppointmentViewModel()
{
PK =33,
Title="Customer 33",
StartDate=DateTime.Parse("2019-05-11T17:15:00"),
EndDate=DateTime.Parse("2019-05-11T17:45:00"),
Detail="Station: STATION 4"
}
};
cntAppoints.AppointmentsSource = null;
cntAppoints.AppointmentsSource = apps;
//GetData(cntAppoints.DisplayDate);
//expFilters.IsExpanded = false;
}
4. After running the above code, the following issues are encountered when appointments are generated on the calendar (screens taken from original application):
- Customer_8.jpg - Appointment for Customer 8 is overlapping appointment with customer 7 when on calendar there is enough space in the other columns;
- Customer_14.jpg - Appointment for Customer 14 is overlapping appointment with customer 12. Appointment for Customer 13 is hidden under Customer 14;
- Customers_26_27_28.jpg - Appointments for Customers 26,27,28 are overlapping with appointment for customer 24 when on calendar their is ample space were to generate these appoints.
- Customer_32.jpg - This is the worst scenario. Appointments for Customer 32 and 33 are sharing the same time slot. This appointments overlapping and users can only view appointment 33.
Can you please give me an indication what I am doing wrong in my code or how can avoid such cases. The scenarios indicated above are misleading to the final users. I notised that such tickets for similar issues where raised since 2017 but never finally answered.
Attached Files:
1 comment
ADMIN
Didi
Posted on:
19 Aug 2019 09:29