OnBeforeAlternateSelectedDateRangeChange Method

Raises the BeforeAlternateSelectedDateRangeChange event before a DateRange is removed from the SelectedDateRanges collection.

Syntax

Visual Basic

'Declaration
 
Protected Overridable Sub OnBeforeAlternateSelectedDateRangeChange( _
   ByVal e As BeforeSelectedDateRangeChangeEventArgs _
) 

C#

protected virtual void OnBeforeAlternateSelectedDateRangeChange( 
   BeforeSelectedDateRangeChangeEventArgs e
)

Parameters

e

A BeforeSelectedDateRangeChangeEventArgs that provides data for the event.

Remarks

Raising an event invokes the event handler through a delegate.

The OnBeforeAlternateSelectedDateRangeChange method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.

Holidays to Inheritors: When overriding OnBeforeAlternateSelectedDateRangeChange in a derived class, be sure to call the base class's OnBeforeAlternateSelectedDateRangeChange method so that registered delegates receive the event.

Requirements

Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, Windows 7, 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