Dashboard.ItemCollectionChanged Event

Occurs after the collection of dashboard items has been changed.

Namespace: DevExpress.DashboardCommon

Assembly: DevExpress.Dashboard.v21.1.Core.dll


public event EventHandler<NotifyingCollectionChangedEventArgs<DashboardItem>> ItemCollectionChanged

Event Data

The ItemCollectionChanged event's data class is NotifyingCollectionChangedEventArgs<DashboardItem>. The following properties provide information specific to this event:

Property Description
AddedItems Gets items added to the NotifyingCollection<T>.
RemovedItems Gets items removed from the NotifyingCollection<T>.


The ItemCollectionChanged event is raised after dashboard items are added to or removed from the Dashboard.Items collection.

Use the event parameter’s NotifyingCollectionChangedEventArgs`1.AddedItems and NotifyingCollectionChangedEventArgs`1.RemovedItems properties to determine which dashboard items have been added or removed, respectively.

View Example: How to notify when a dashboard item is added, removed or duplicated

The following code logs the DashboardItem information when a DashboardItem is added, deleted or duplicated.

private void DashboardDesigner1_DashboardLoaded(object sender, DevExpress.DashboardWin.DashboardLoadedEventArgs e)
    e.Dashboard.ItemCollectionChanged += Dashboard_ItemCollectionChanged;

private void Dashboard_ItemCollectionChanged(object sender, NotifyingCollectionChangedEventArgs<DashboardItem> e)
    Dashboard dBoard = sender as Dashboard;
    if (e.AddedItems.Count > 0)
        if (e.AddedItems.Count == 1 && dBoard.Items.Count(i => i.Name == e.AddedItems[0].Name) > 1)
            AddToLog("Duplicated", e.AddedItems);
            AddToLog("Added", e.AddedItems);
    if (e.RemovedItems.Count > 0)
        AddToLog("Removed", e.RemovedItems);
See Also