Scheduler in the WinForms Edition of ComponentOne Studio has been a popular control since the day it was introduced. In the last few days, we've had a number of customer requests focusing on the ability to copy and paste Appointments in Scheduler. The requirement may range from simply copying Appointments from one day to other in the same Scheduler, to performing the copy-paste operations across two Scheduler controls. This sample meets both of those requirements.
We'll divide the implementation in two steps.
- Copying the Appointments
- Pasting the Appointments
Copying the Appointments
We can allow the users to copy single and multiple Appointments in order to meet the requirements. Multiple selection of Appointments in Scheduler is performed by pressing the shift key and then selecting the desired Appointments.
The main logic behind copying the Appointments is implemented in KeyDown event of Scheduler. When the "Ctrl+C" keys are pressed, all the selected Appointments are stored in an array using the SelectedAppointments property. They can be retrieved one by one from the array while pasting.
Private Sub C1Schedule1_KeyDown(sender As Object, e As KeyEventArgs) If (e.Modifiers = Keys.Control And e.KeyCode = Keys.C) Then If (C1Schedule1.SelectedAppointments.Count > 0) Then count = C1Schedule1.SelectedAppointments.Count For i As Integer = 0 To count - 2 dayinterval(i) = DateDiff(DateInterval.Day, C1Schedule1.SelectedAppointments(i).Start.Date, C1Schedule1.SelectedAppointments(i + ).Start.Date) Next For k As Integer = 0 To count - 1 applist(k) = C1Schedule1.SelectedAppointments(k).Copy() Next End If End If End Sub
Now the "applist" array collection will contain all the selected Appointments. When the Appointments are copied and stored in an array, the difference of every date (dayinterval) with its successor is also calculated using DateDiff.aspx) method of Microsoft.VisualBasic.DateAndTime class and stored in another array. The reason being, the same difference of dates can be added in between pasting the Appointments.
Pasting the Appointments
The next step is to paste the copied Appointments from "applist" array to Scheduler. The array is traversed to retrieve the Appointments one by one so as to add them in the Appointment storage of the Scheduler. The next Appointment to be pasted will add the date difference to its start date, so that the same difference between the dates can be maintained.
Private Sub C1Schedule1_KeyDown(sender As Object, e As KeyEventArgs) If (e.Modifiers = Keys.Control And e.KeyCode = Keys.V) Then Dim selecteddate As Date = C1Schedule1.SelectedInterval.Start For i As Integer = 0 To count - 1 Dim appnew1 As Appointment = New Appointment() appnew1.Body = appList(i).Body appnew1.Subject = appList(i).Subject appnew1.Location = appList(i).Location appnew1.Start = New DateTime(selecteddate.Year, selecteddate.Month, selecteddate.Day, appList(i).Start.Hour, appList(i).Start.Minute, appList(i).Start.Second) appnew1.Duration = applist(i).Duration appnew1.BusyStatus = applist(i).BusyStatus appnew1.Label = applist(i).Label appnew1.AllDayEvent = applist(i).AllDayEvent C1Schedule1.DataStorage.AppointmentStorage.Appointments.Add(appnew1) selecteddate = selecteddate.AddDays(dayinterval(i)) Next End If End Sub
The same approach can be implemented in another Scheduler by handling its KeyDown event and using the same "applist" and "dayinterval" array collections.