'宣言 Public ReadOnly Default Property Item( _ ByVal index As Integer _ ) As Appointment
public Appointment this[ int index ]; {get;}
Imports Infragistics.Win Imports Infragistics.Win.UltraWinSchedule Imports System.Diagnostics AddHandler Me.monthViewSingle.AppointmentsDragging, AddressOf OnAppointmentsDragging Private Sub OnAppointmentsDragging(ByVal sender As Object, ByVal e As AppointmentsDraggingEventArgs) ' Get a reference to the schedule control and the associated UltraCalendarInfo Dim control As UltraScheduleControlBase = sender Dim calendarInfo As UltraCalendarInfo = control.CalendarInfo ' Disallow copying of appointments this prevents copies of the ' dragged appointments from being made when the user presses the ' Control key. e.AllowCopy = False ' Disallow dragging the appointments to the unassigned owner, ' if they originally belonged to a different owner. If (Not (e.NewOwner Is e.InitialOwner) AndAlso e.NewOwner.IsUnassigned) Then e.AllowOwnerChange = False End If ' If the delta between the initial date and the new date is more ' than seven days, prompt the user to make sure they want to continue. ' ' To avoid stealing capture (and thus terminating the drag operation), ' we can only do this during the final phase of the drag operation, ' so check e.Phase to make sure that is the case. If e.Phase = AppointmentDragPhase.Ending Then Dim span As TimeSpan = e.NewDateTime.Date.Subtract(e.InitialDateTime.Date) Dim delta As Int32 = Math.Abs(span.TotalDays) If (delta > 7.0F) Then Dim sb As StringBuilder = New StringBuilder() sb.AppendLine("The following appointment(s) are being dragged by more than seven days from their initial start time(s):") sb.AppendLine(Environment.NewLine) Dim appointment As Appointment For Each appointment In e.Appointments sb.AppendLine(String.Format("{0} ({1})", appointment.Subject, appointment.StartDateTime.ToShortDateString())) Next sb.AppendLine(Environment.NewLine) sb.AppendLine("Do you want to move the appointment(s)?") Dim result As DialogResult = MessageBox.Show(sb.ToString(), "AppointmentsDragging", MessageBoxButtons.YesNo) If (result = System.Windows.Forms.DialogResult.No) Then e.Cancel = True End If End If End Sub
using Infragistics.Win; using Infragistics.Win.UltraWinSchedule; using System.Diagnostics; this.monthViewSingle.AppointmentsDragging += new AppointmentsDraggingHandler(OnAppointmentsDragging); private void OnAppointmentsDragging(object sender, AppointmentsDraggingEventArgs e) { // Get a reference to the schedule control and the associated UltraCalendarInfo UltraScheduleControlBase control = sender as UltraScheduleControlBase; UltraCalendarInfo calendarInfo = control.CalendarInfo; // Disallow copying of appointments; this prevents copies of the // dragged appointments from being made when the user presses the // Control key. e.AllowCopy = false; // Disallow dragging the appointments to the unassigned owner, // if they originally belonged to a different owner. if ( e.NewOwner != e.InitialOwner && e.NewOwner.IsUnassigned ) e.AllowOwnerChange = false; // If the delta between the initial date and the new date is more // than seven days, prompt the user to make sure they want to continue. // // To avoid stealing capture (and thus terminating the drag operation), // we can only do this during the final phase of the drag operation, // so check e.Phase to make sure that is the case. if ( e.Phase == AppointmentDragPhase.Ending ) { TimeSpan span = e.NewDateTime.Date.Subtract( e.InitialDateTime.Date ); int delta = (int)Math.Abs(span.TotalDays); if ( delta > 7f ) { StringBuilder sb = new StringBuilder(); sb.AppendLine( "The following appointment(s) are being dragged by more than seven days from their initial start time(s):" ); sb.AppendLine( Environment.NewLine ); foreach( Appointment appointment in e.Appointments ) { sb.AppendLine( string.Format("{0} ({1})", appointment.Subject, appointment.StartDateTime.ToShortDateString()) ); } sb.AppendLine( Environment.NewLine ); sb.AppendLine( "Do you want to move the appointment(s)?" ); DialogResult result = MessageBox.Show( sb.ToString(), "AppointmentsDragging", MessageBoxButtons.YesNo ); if ( result == DialogResult.No ) e.Cancel = true; } } }