SchedulerOptionsCustomization.AllowAppointmentCreate Property

Gets or sets whether a user is allowed to create new appointments.

Namespace: DevExpress.XtraScheduler

Assembly: DevExpress.XtraScheduler.v24.2.Core.Desktop.dll

NuGet Package: DevExpress.Scheduler.CoreDesktop

Declaration

C#

[DefaultValue(UsedAppointmentType.All)]
public UsedAppointmentType AllowAppointmentCreate { get; set; }

VB.NET

<DefaultValue(UsedAppointmentType.All)>
Public Property AllowAppointmentCreate As UsedAppointmentType

Property Value

Type	Default	Description
UsedAppointmentType	All	A UsedAppointmentType enumeration value that specifies the type of appointment which the action can be applied to.

Available values:

Name	Description
None	The action can’t be applied to any appointments.
Recurring	The action can be applied to recurring appointments only.
NonRecurring	The action can be applied to non-recurring appointments only.
All	The action can be applied to all the appointments.
Custom	The action is applied according to the custom method specified by the corresponding AllowAppointment~ or CustomAllowAppointment~ event of the SchedulerControl.

Property Paths

You can access this nested property as listed below:

Library	Object Type	Path to AllowAppointmentCreate
WinForms Controls	SchedulerControl	.OptionsCustomization .AllowAppointmentCreate
ASP.NET Bootstrap Controls	BootstrapScheduler	.OptionsEditing .AllowAppointmentCreate
XAF: Cross-Platform .NET App UI & Web API	ASPxSchedulerListEditor	.OptionsCustomization .AllowAppointmentCreate
ASP.NET MVC Extensions	SchedulerSettings	.OptionsCustomization .AllowAppointmentCreate
ASP.NET Web Forms Controls	ASPxScheduler	.OptionsCustomization .AllowAppointmentCreate

Remarks

By default, end-users are allowed to create new appointments by using UI elements such as the scheduler’s popup menu, a View’s inplace editor or the Edit Appointment dialog. Use the AllowAppointmentCreate property to control the availability of such an action for end-users with respect to an appointment’s specific type.

Note

If the AllowAppointmentCreate property is set to UsedAppointmentType.Custom, then whether an end-user is allowed to create new appointments or not is decided in the SchedulerControl.AllowAppointmentCreate event handler.

Example

This example demonstrates how to implement custom rules for editing and deleting appointments. The code below allows an appointment to be edited only by its owner (the end-user who created it). To do this it’s necessary to set the SchedulerOptionsCustomization.AllowAppointmentEdit and SchedulerOptionsCustomization.AllowAppointmentDelete properties to UsedAppointmentType.Custom, and handle the SchedulerControl.AllowAppointmentEdit and SchedulerControl.AllowAppointmentDelete events to implement custom logic for editing appointments.

C#

using DevExpress.XtraScheduler;
// ...

private void schedulerControl1_AllowAppointmentDelete(object sender, 
    AppointmentOperationEventArgs e) {
   // Allow only the user who created this appontment to delete it.
   e.Allow = CanUserModifyThisAppointment(e.Appointment);
}
private void schedulerControl1_AllowAppointmentEdit(object sender, 
    AppointmentOperationEventArgs e) {
   // Allow only the user who created this appontment to modify it.
   e.Allow = CanUserModifyThisAppointment(e.Appointment);
}
// Determine if the current user is the same 
// as the one who created the specified appointment 
bool CanUserModifyThisAppointment(Appointment apt) {
   object obj = apt.CustomFields["Owner"];
   if (obj == null)
      return true;
   string appointmentOwner = obj.ToString();
   if (appointmentOwner == String.Empty)
      return true;
   return (String.Compare(appointmentOwner, tbUserName.Text, true) == 0);
}

VB.NET

Imports DevExpress.XtraScheduler
' ...

Private Sub schedulerControl1_AllowAppointmentDelete(ByVal sender As Object, _
ByVal e As AppointmentOperationEventArgs)
   ' Allow only the user who created this appontment to delete it.
   e.Allow = CanUserModifyThisAppointment(e.Appointment)
End Sub
Private Sub schedulerControl1_AllowAppointmentEdit(ByVal sender As Object, _
ByVal e As AppointmentOperationEventArgs)
   ' Allow only the user who created this appontment to modify it.
   e.Allow = CanUserModifyThisAppointment(e.Appointment)
End Sub
' Determine if the current user is the same 
' as the one who created the specified appointment 
Private Function CanUserModifyThisAppointment(ByVal apt As Appointment) As Boolean
   Dim obj As Object = apt.CustomFields("Owner")
   If obj Is Nothing Then
      Return True
   End If
   Dim appointmentOwner As String = obj.ToString()
   If appointmentOwner = String.Empty Then
      Return True
   End If
   Return (String.Compare(appointmentOwner, tbUserName.Text, True) = 0)
End Function