Version

SelectedGroupChanging Event

Raises before completing the change of the SelectedGroup in the XamOutlookBar.
Syntax
'Declaration
 
Public Event SelectedGroupChanging As EventHandler(Of SelectedGroupChangingEventArgs)
public event EventHandler<SelectedGroupChangingEventArgs> SelectedGroupChanging
Event Data

The event handler receives an argument of type SelectedGroupChangingEventArgs containing data related to this event. The following SelectedGroupChangingEventArgs properties provide information specific to this event.

PropertyDescription
Cancel (Inherited from Infragistics.Windows.Controls.Events.CancelableRoutedEventArgs) 
CurrentSelectedOutlookBarGroup The currently selected Infragistics.Windows.OutlookBar.OutlookBarGroup.
Handled (Inherited from System.Windows.RoutedEventArgs)Gets or sets a value that indicates the present state of the event handling for a routed event as it travels the route.
NewSelectedOutlookBarGroup The new selected Infragistics.Windows.OutlookBar.OutlookBarGroup.
OriginalSource (Inherited from System.Windows.RoutedEventArgs)Gets the original reporting source as determined by pure hit testing, before any possible System.Windows.RoutedEventArgs.Source adjustment by a parent class.
RoutedEvent (Inherited from System.Windows.RoutedEventArgs)Gets or sets the System.Windows.RoutedEventArgs.RoutedEvent associated with this System.Windows.RoutedEventArgs instance.
Source (Inherited from System.Windows.RoutedEventArgs)Gets or sets a reference to the object that raised the event.
Example
This code demonstrates how to use SelectedGroupChanging and SelectedGroupChanged events

For an overview of how to handle events in Visual Basic or Visual C#, see Event Handlers in Visual Basic and Visual C#. For specific information and code examples illustrating how to consume events in your application, see Consuming Events in the .NET Framework Developer's Guide.

private void xamOutlookBar1_SelectedGroupChanged(object sender, RoutedEventArgs e)
{
    Console.WriteLine("SelectedGroup is changed to " + xamOutlookBar1.SelectedGroup.Header);
}

private void xamOutlookBar1_SelectedGroupChanging(object sender, Infragistics.Windows.OutlookBar.Events.SelectedGroupChangingEventArgs e)
{

    string oldSelected = e.CurrentSelectedOutlookBarGroup == null ? "null" : (string)e.CurrentSelectedOutlookBarGroup.Header;
    string newSelected = e.NewSelectedOutlookBarGroup == null ? "null" : (string)e.NewSelectedOutlookBarGroup.Header;

    Console.WriteLine("SelectedGroup Changing" +
            " from " + oldSelected +
            " to " + newSelected);

    e.Cancel = false; // set e.Cancel to true to abort this operation 

    if (e.Cancel)
        Console.WriteLine("Operation canceled!");
}
<Window x:Class="XamOutlookBarApp.IG_XamOutlookBar_Events"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:igOutlookBar="http://infragistics.com/OutlookBar"
    Title="IG_XamOutlookBar_Events" Height="300" Width="300">
    <StackPanel Orientation="Horizontal">
        <igOutlookBar:XamOutlookBar Name="xamOutlookBar1" Width="144" 
                                    SelectedGroupChanged="xamOutlookBar1_SelectedGroupChanged"
                                    SelectedGroupChanging="xamOutlookBar1_SelectedGroupChanging">
            <igOutlookBar:OutlookBarGroup Header="Group 1" Content="Group 1" />
            <igOutlookBar:OutlookBarGroup Header="Group 2" Content="Group 2"/>
        </igOutlookBar:XamOutlookBar>
    </StackPanel>
</Window>
SelectedGroupChangedEvent
Private Sub xamOutlookBar1_SelectedGroupChanged(sender As Object, e As RoutedEventArgs) 
    Console.WriteLine("SelectedGroup is changed to " + xamOutlookBar1.SelectedGroup.Header) 
End Sub 

Private Sub xamOutlookBar1_SelectedGroupChanging(sender As Object, e As Infragistics.Windows.OutlookBar.Events.SelectedGroupChangingEventArgs) 
    
    Dim oldSelected As String = If(e.CurrentSelectedOutlookBarGroup Is Nothing, "null", DirectCast(e.CurrentSelectedOutlookBarGroup.Header, String)) 
    Dim newSelected As String = If(e.NewSelectedOutlookBarGroup Is Nothing, "null", DirectCast(e.NewSelectedOutlookBarGroup.Header, String)) 
    
    Console.WriteLine("SelectedGroup Changing" + " from " + oldSelected + " to " + newSelected) 
    
    e.Cancel = False 
    ' set e.Cancel to true to abort this operation 
    If e.Cancel Then 
        Console.WriteLine("Operation canceled!") 
    End If 
End Sub
Requirements

Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

See Also