SchedulerControl.AppointmentViewInfoCustomizing Event
Allows customizing the appointment‘s appearance by modifying the style elements when it is painted.
Namespace: DevExpress.Xpf.Scheduler
Assembly: DevExpress.Xpf.Scheduler.v22.2.dll
NuGet Package: DevExpress.Wpf.Scheduler
Declaration
Event Data
The AppointmentViewInfoCustomizing event's data class is AppointmentViewInfoCustomizingEventArgs. The following properties provide information specific to this event:
Property | Description |
---|---|
ViewInfo | Gets the object which contains information used to render the appointment. |
Remarks
Important
You are viewing documentation for the legacy WPF Scheduler control. If you’re starting a new project, we strongly recommend that you use a new control declared in the DevExpress.Xpf.Scheduling namespace. If you decide to upgrade an existing project in order to switch to the updated scheduler control, see the Migration Guidelines document.
If you need to implement conditional styling based on the appointment data, handle the AppointmentViewInfoCustomizing event, and modify any appearance property using the appointment’s data as a condition.
Example
Tip
A complete sample project is available in the DevExpress Code Examples database at https://supportcenter.devexpress.com/ticket/details/e2999/how-to-customize-appointment-tooltips.
This example demonstrates how to use the AppointmentViewInfo.Subject, AppointmentViewInfo.Location, AppointmentViewInfo.Description, AppointmentViewInfo.CustomViewInfo, SchedulerViewBase.AppointmentToolTipContentTemplate properties and SchedulerControl.AppointmentViewInfoCustomizing
event to define and apply a custom template for showing an appointment subject, location, description and resource images within appointment tooltips.
using System.IO;
using System.Data;
using System.Windows;
using System.Data.OleDb;
using DevExpress.Xpf.Core.Native;
using System.Collections.Generic;
using System.Windows.Media.Imaging;
using DevExpress.XtraScheduler;
using DevExpress.Xpf.Scheduler;
using DevExpress.Xpf.Scheduler.Drawing;
namespace WpfApplication1 {
public partial class MainWindow : Window {
Dictionary<Resource, BitmapImage> resourceImages = new Dictionary<Resource, BitmapImage>();
public MainWindow() {
InitializeComponent();
// ...
DataTemplate template = (DataTemplate)this.FindResource("AppointmentTooltipContentTemplate");
schedulerControl1.WorkWeekView.AppointmentToolTipContentTemplate = template;
}
private void schedulerControl1_AppointmentViewInfoCustomizing(object sender,
AppointmentViewInfoCustomizingEventArgs e) {
AppointmentViewInfo viewInfo = e.ViewInfo;
Resource resource = schedulerControl1.Storage.Resources.GetResourceById(viewInfo.Appointment.ResourceId);
if (resource == Resource.Empty || resource.Image == null)
viewInfo.CustomViewInfo = null;
else {
if (!this.resourceImages.ContainsKey(resource))
this.resourceImages[resource] = ImageHelper.CreateImageFromStream(ConvertImageToMemoryStream(resource.Image));
viewInfo.CustomViewInfo = this.resourceImages[resource];
}
}
public static MemoryStream ConvertImageToMemoryStream(System.Drawing.Image img) {
var ms = new MemoryStream();
img.Save(ms, System.Drawing.Imaging.ImageFormat.Png);
return ms;
}
}
}
Related GitHub Examples
The following code snippets (auto-collected from DevExpress Examples) contain references to the AppointmentViewInfoCustomizing event.
Note
The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.