BeforeAppointmentRemoved Event

Fired before an Appointment is removed from the Appointments collection.

Syntax

Visual Basic

'Declaration
 
Public Event BeforeAppointmentRemoved As CancelableAppointmentEventHandler

C#

public event CancelableAppointmentEventHandler BeforeAppointmentRemoved

Event Data

The event handler receives an argument of type CancelableAppointmentEventArgs containing data related to this event. The following CancelableAppointmentEventArgs properties provide information specific to this event.

Property	Description
Appointment	Returns the appointment object associated with the event. This property is read-only.
Cancel (Inherited from System.ComponentModel.CancelEventArgs)

Example

This example uses the CancelableAppointmentEventArgs' Cancel property to disallow the removal of Appointments that span more than one day.

For an overview of how to handle events in Visual Basic or Visual C#, see Event Handlers in Visual Basic and Visual C#. For specific information and code examples illustrating how to consume events in your application, see Consuming Events in the .NET Framework Developer's Guide.

Visual Basic

Imports Infragistics.Shared
Imports Infragistics.Win
Imports Infragistics.Win.UltraWinSchedule
Imports System.Diagnostics

    Private Sub ultraCalendarInfo1_BeforeAppointmentRemoved(ByVal sender As Object, ByVal e As Infragistics.Win.UltraWinSchedule.CancelableAppointmentEventArgs) Handles ultraCalendarInfo1.BeforeAppointmentRemoved

        '----------------------------------------------------------------------------------------------------
        '	Description
        '	BeforeAppointmentRemoved
        '
        '	Fires before an appointment is removed from the component's Appointments collection.
        '	If canceled, the Appointment is not removed, and the AfterAppointmentRemoved event does not fire.
        '
        '----------------------------------------------------------------------------------------------------

        '	Get the Appointment's starting and ending dates, and
        '	determine whether it spans more than one day
        Dim startDate As DateTime = e.Appointment.StartDateTime.Date
        Dim endDate As DateTime = e.Appointment.StartDateTime.Date

        If (endDate > startDate) Then
            '	To prevent the removal of the Appointment, set the Cancel
            '	property to true
            e.Cancel = True

            '	Let the end user know what happened
            Dim info As String = String.Empty
            info += "You do not have sufficient permissions to remove multi-day appointments." + vbCrLf

            MessageBox.Show(info, "BeforeAppointmentRemoved", MessageBoxButtons.OK, MessageBoxIcon.Error)
        End If

    End Sub

C#

using System.Diagnostics;
using Infragistics.Shared;
using Infragistics.Win;
using Infragistics.Win.UltraWinSchedule;

		private void ultraCalendarInfo1_BeforeAppointmentRemoved(object sender, Infragistics.Win.UltraWinSchedule.CancelableAppointmentEventArgs e)
		{

			//----------------------------------------------------------------------------------------------------
			//	Description
			//	BeforeAppointmentRemoved
			//
			//	Fires before an appointment is removed from the component's Appointments collection.
			//	If canceled, the Appointment is not removed, and the AfterAppointmentRemoved event does not fire.
			//
			//----------------------------------------------------------------------------------------------------
		
			//	Get the Appointment's starting and ending dates, and
			//	determine whether it spans more than one day
			DateTime startDate = e.Appointment.StartDateTime.Date;
			DateTime endDate = e.Appointment.StartDateTime.Date;

			if ( endDate > startDate )
			{
				//	To prevent the removal of the Appointment, set the Cancel
				//	property to true
				e.Cancel = true;

				//	Let the end user know what happened
				string info = string.Empty;
				info += "You do not have sufficient permissions to remove multi-day appointments." + "\n";

				MessageBox.Show( info, "BeforeAppointmentRemoved", MessageBoxButtons.OK, MessageBoxIcon.Error );
			}

		}

Requirements

Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2