Occupied Timeslots

[Karl]

Hi,

Is there anything like this for the Winform Scheduler:
http://demos.telerik.com/aspnet-ajax/scheduler/examples/limitconcurrentappointments/defaultcs.aspx

I still want to keep all  the functionality ie drag and drop, resize etc I just want to check that no appointments overlap.

I can't see anything in the winform demo

Thanks

[Ivan Todorov]

Hello Karl,

Thank you for your question.

This functionality is not support out of the box, but you can achieve this by utilizing some of RadScheduler's events. The following code snippet demonstrates this:

public partial class Form1 : Form
{
    public Form1()
    {
        InitializeComponent();
        this.radScheduler1.Appointments.CollectionChanging += new NotifyCollectionChangingEventHandler(Appointments_CollectionChanging);
    }

    void Appointments_CollectionChanging(object sender, NotifyCollectionChangingEventArgs e)
    {
        if (e.Action == NotifyCollectionChangedAction.Add)
        {
            e.Cancel = this.IsIntersecting(e.NewItems[0] as IEvent);
        }
    }

    private bool IsIntersecting(IEvent newApp)
    {
        if(newApp == null)
        {
            return false;
        }

        foreach (IEvent app in this.radScheduler1.Appointments)
        {
            if (newApp.Start < app.End && newApp.End > app.Start)
            {
                return true;
            }
        }

        return false;
    }
}

I hope this is useful. Should you have any further questions, we will be glad to address them.

Regards,
Ivan Todorov
the Telerik team

[Karl]

Hi,

The Appointments_CollectionChanging does not seem to fire, I looked a little more and it says it won't fire if I have not implemented INotifyPropertyChanging, I followed the customeditappointmentdialog example for my project.

public

 

 

class TimeAppointment : Appointment
{

}

and then added this to implement it

 

public class TimeAppointment : Appointment, INotifyPropertyChanged
{



public event PropertyChangedEventHandler PropertyChanged;

protected override void OnPropertyChanged(string propertyName)

{

if (this.PropertyChanged != null)

{

this.PropertyChanged(this, new PropertyChangedEventArgs(propertyName));

}

}

}

But it still won't fire.

Any ideas?

Thanks

[Ivan Todorov]

Hello Karl,

You do not need to implement the mentioned interface when using the CollectionChaning event. It should fire properly when adding new appointments. However, to check if the appointments overlap when dragging or resizing them, you should use the AppointmentMoving and AppointmentResizing events. I have skipped this requirement in my previous post by mistake. Now I am sending you a small sample project which demonstrates how to implement the desired scenario.

Please let me know if it works for you. Also, if you have any further questions, feel free to ask.

Kind regards,
Ivan Todorov
the Telerik team