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SchedulerControl.PopupMenuShowing Event

Occurs every time the pop-up menu menu is invoked.

Namespace: DevExpress.Xpf.Scheduling

Assembly: DevExpress.Xpf.Scheduling.v19.1.dll

Declaration

public event PopupMenuShowingEventHandler PopupMenuShowing
Public Event PopupMenuShowing As PopupMenuShowingEventHandler

Event Data

The PopupMenuShowing event's data class is PopupMenuShowingEventArgs. The following properties provide information specific to this event:

Property Description
Cancel Gets or sets whether the event should be canceled. Inherited from CancelRoutedEventArgs.
Handled Gets or sets a value that indicates the present state of the event handling for a routed event as it travels the route. Inherited from RoutedEventArgs.
Menu Provides access to the invoked context menu.
MenuType Indicates the type of the current context menu.
OriginalSource Gets the original reporting source as determined by pure hit testing, before any possible Source adjustment by a parent class. Inherited from RoutedEventArgs.
RoutedEvent Gets or sets the RoutedEvent associated with this RoutedEventArgs instance. Inherited from RoutedEventArgs.
Source Gets or sets a reference to the object that raised the event. Inherited from RoutedEventArgs.

The event data class exposes the following methods:

Method Description
InvokeEventHandler(Delegate, Object) When overridden in a derived class, provides a way to invoke event handlers in a type-specific way, which can increase efficiency over the base implementation. Inherited from RoutedEventArgs.
OnSetSource(Object) When overridden in a derived class, provides a notification callback entry point whenever the value of the Source property of an instance changes. Inherited from RoutedEventArgs.

Remarks

Handle the PopupMenuShowing event to dynamically customize the Scheduler popup menus. Use the Menu property to obtain the current pop-up menu. The MenuType property provides information about the current menu type (appointment, time cell, time ruler or appointment drop).

TIP

Use the OptionsContextMenu class properties to provide the built-in context menu with necessary customization actions or substitute it with a custom menu in XAML. Refer to the Pop-Up Menus topic for details.

Examples

private void scheduler_PopupMenuShowing(object sender, PopupMenuShowingEventArgs e)
{
    //Customize the cell context menu:
    if (e.MenuType == ContextMenuType.CellContextMenu)
    {
        PopupMenu menu = (PopupMenu)e.Menu;

        //Change the "New All Day Event" item's caption to "Create All-Day Appointment":
        for (int i = 0; i < menu.Items.Count; i++)
        {
            BarItem menuItem = menu.Items[i] as BarItem;
            if (menuItem != null)
            {
                if (menuItem != null && menuItem.Content.ToString() == "New All Day Event")
                {
                    menuItem.Content = "Create All-Day Appointment";
                    break;
                }
            }
        }
        //Add new menu item: 
        if  (!menu.Items.Contains(myMenuItem))
        {
            CreateNewItem();
            menu.Items.Add(myMenuItem);
        }
    }
}
private void CreateNewItem()
{
    //Create a new menu item: 
    myMenuItem = new BarButtonItem();

    myMenuItem.Name = "customItem";
    myMenuItem.Content = "Item Added at Runtime";
    myMenuItem.ItemClick += new ItemClickEventHandler(customItem_ItemClick);
}
private void customItem_ItemClick(object sender, ItemClickEventArgs e)
{
    // Implement a custom action. 
    MessageBox.Show(String.Format("{0} is clicked", e.Item.Name));
}
See Also