# OnCalendarViewChanged

The **OnCalendarViewChanged** client-side event handler of the [ASP NET AJAX Calendar](https://www.telerik.com/products/aspnet-ajax/calendar.aspx) is called when the calendar navigates to a new view, after the calendar has been updated for the new view. The event is raised after the action is complete.

The event handler receives two arguments:

1. the [RadCalendar object](https://www.telerik.com/products/aspnet-ajax/documentation/controls/calendar/client-side-programming/radcalendar-object) that fired the event.

2. an event arguments object that exposes the following methods:OnCalendarViewChanged event arguments object

| Name           | Return Type | Arguments | Description                                                    |
| -------------- | ----------- | --------- | -------------------------------------------------------------- |
| **get_step()** | int         |           | Returns the number of views by which the calendar has changed. |

The following example uses the **OnCalendarViewChanged** event to display an alert:

```ASPNET
<telerik:RadCalendar RenderMode="Lightweight" ID="RadCalendar1" runat="server">
 <ClientEvents OnCalendarViewChanged="viewChanged" />
</telerik:RadCalendar>		
```

```JavaScript
function viewChanged(sender, eventArgs) {
    var step = eventArgs.get_step();
    var msg = "The calendar moved ";
    if (step < 0) {
        msg = msg + "back ";
        step = -step;
    }
    else
        msg = msg + "forward "
    msg = msg + step + " views.";
    alert(msg);
}
```

## See Also

* [OnCalendarViewChanging](https://www.telerik.com/products/aspnet-ajax/documentation/controls/calendar/client-side-programming/events/oncalendarviewchanging)

* [DefaultViewChanged](https://www.telerik.com/products/aspnet-ajax/documentation/controls/calendar/server-side-programming/events/defaultviewchanged)