'Declaration Protected Overridable Sub OnBeforeInvokeAppointmentAction( _ ByVal e As CancelableAppointmentEventArgs _ )
protected virtual void OnBeforeInvokeAppointmentAction( CancelableAppointmentEventArgs e )
Raising an event invokes the event handler through a delegate.
The OnBeforeInvokeAppointmentAction method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.
Notes to Inheritors: When overriding OnBeforeInvokeAppointmentAction in a derived class, be sure to call the base class's OnBeforeInvokeAppointmentAction method so that registered delegates receive the event.
Imports Infragistics.Shared Imports Infragistics.Win Imports Infragistics.Win.UltraWinSchedule Imports System.Diagnostics Private Sub ultraCalendarInfo1_BeforeInvokeAppointmentAction(ByVal sender As Object, ByVal e As Infragistics.Win.UltraWinSchedule.CancelableAppointmentEventArgs) Handles ultraCalendarInfo1.BeforeInvokeAppointmentAction '---------------------------------------------------------------------------------------------------- ' Description ' BeforeInvokeAppointmentAction ' ' Fires before an Appointment's action is invoked ' ' An Appointment object can be assigned an AppointmentAction via its Action property. ' The AppointmentAction can, for example, launch an application when an appointment ' becomes due. In this scenario, the BeforeInvokeAppointmentAction would fire prior ' the application being launched. ' '---------------------------------------------------------------------------------------------------- If (e.Appointment.Action.Type = AppointmentActionType.ExecuteProgram) 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 execute programs." + vbCrLf MessageBox.Show(info, "BeforeInvokeAppointmentAction", MessageBoxButtons.OK, MessageBoxIcon.Error) End If End Sub
using System.Diagnostics; using Infragistics.Shared; using Infragistics.Win; using Infragistics.Win.UltraWinSchedule; private void ultraCalendarInfo1_BeforeInvokeAppointmentAction(object sender, Infragistics.Win.UltraWinSchedule.CancelableAppointmentEventArgs e) { //---------------------------------------------------------------------------------------------------- // Description // BeforeInvokeAppointmentAction // // Fires before an Appointment's action is invoked // // An Appointment object can be assigned an AppointmentAction via its Action property. // The AppointmentAction can, for example, launch an application when an appointment // becomes due. In this scenario, the BeforeInvokeAppointmentAction would fire prior // the application being launched. // //---------------------------------------------------------------------------------------------------- if ( e.Appointment.Action.Type == AppointmentActionType.ExecuteProgram ) { // 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 execute programs." + "\n"; MessageBox.Show( info, "BeforeInvokeAppointmentAction", MessageBoxButtons.OK, MessageBoxIcon.Error ); } }
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