C1 Community

Hi, 

Anyone has a workaround for this?

The C1Scheduler is binded to an observable collection.

I can add and remove items from the collection and the scheduler is updated correctly.

However, as soon as I hide the scheduler and try to add data to the data source again, the scheduler does not refresh anymore.

To reproduce the problem, use the provided sample. 

The sample is a simple property sheet with the first page containing the scheduler an the second page containing nothing.

 You just have to select the second property tab and try to add data to the collection by using the buttons in the toolbar.

When you return to the first tab, you can see that the scheduler is not updated with the new data.
At this point, the scheduler won't react to any update, even if it is visible.

 Here is the sample code:

====================  XAML =========================

<Window x:Class="SchedulerTester.Window1"

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

xmlns:c1sched="http://schemas.componentone.com/wpf/C1Schedule"

Title="SchedulerTester" Height="600" Width="600"

Name="window1"

<Grid.RowDefinitions>

<RowDefinition/>

<ToolBar Grid.Row="0">

<Button Click="OnAdd">

</Button>

<TextBlock>Clear</TextBlock>

<Button Click="OnClearAndAdd">

</Button>

</ToolBar>

<TabItem Header="Scheduler">

<!-- Map AppointmentStorage -->

<c1sched:NestedPropertySetter PropertyName="DataStorage.AppointmentStorage.Mappings.Subject.MappingName" Value="Subject"/>

<c1sched:NestedPropertySetter PropertyName="DataStorage.AppointmentStorage.Mappings.Start.MappingName" Value="StartTime"/>

<c1sched:NestedPropertySetter PropertyName="DataStorage.AppointmentStorage.Mappings.DurationMapping.MappingName" Value="Duration"/>

<c1sched:NestedPropertySetter PropertyName="DataStorage.AppointmentStorage.DataSource"

</c1sched:C1Scheduler>

<TabItem Header="Empty tab"/>

</Grid>

using System;

using System.Collections.Generic;

using System.Collections.ObjectModel;

using System.Text;

using System.Windows;

using System.Windows.Controls;

using System.Windows.Data;

using System.Windows.Documents;

using System.Windows.Input;

using System.Windows.Media;

using System.Windows.Media.Imaging;

public class TestAppointment

private DateTime startTime = DateTime.Now;

private TimeSpan duration = new TimeSpan();

get { return this.subject; }

get { return this.endTime; }

get { return this.body; }

/// <summary>

/// Interaction logic for Window1.xaml

/// </summary>

public partial class Window1 : System.Windows.Window

TimeSpan duration = new TimeSpan(0, 60, 0);

get { return this.appointmentCollection; }

TestAppointment appointment = new TestAppointment();

appointment.StartTime = this.startDate;

this.AppointmentCollection.Add(appointment);

this.scheduler.InvalidateArrange();

this.AppointmentCollection.Clear();

this.startDate = this.startDate.AddDays(1);

appointment.Duration = this.duration;

appointment.EndTime = this.startDate.AddMinutes(duration.TotalMinutes);

Update,

 It seems that it's not even needed to bind data to reproduce the problem.

If the scheduler is in a property page, select another property page and return to the scheduler.

Then , try to use the scheduler's scrollbar.  The scheduler won't refresh at all.

I'm not sure what is the source of problem, we'll investigate that.

You can use the next workaround: subscribe to C1Scheduler.Loaded event and force Scheduler to rebuild UI in event handler:

private void scheduler_Loaded(object sender, RoutedEventArgs e) 
{ 
  scheduler.BeginUpdate(); 
  scheduler.ClearValue(StyleProperty); 
  scheduler.ChangeStyle(scheduler.MonthStyle); 
  scheduler.EndUpdate(); 
} 

Please, let us know whether it helps you or if you find more information about this issue.

Yes, it did help.  It is pretty much the workaround I was looking for.  It seems to fix all the refresh problems so far.

 Thanks a lot.