BeforeScrollEventHandler Delegate

delegate for handling the BeforeScroll event

Syntax

Visual Basic

'Declaration
 
Public Delegate Sub BeforeScrollEventHandler( _
   ByVal sender As Object, _
   ByVal e As BeforeScrollEventArgs _
) 

C#

public delegate void BeforeScrollEventHandler( 
   object sender,
   BeforeScrollEventArgs e
)

Parameters

sender

e

Example

This example cancels the scroll operation if the user is dragging the scroll thumb.

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.

Visual Basic

Private Sub UltraMonthViewSingle1_BeforeScroll(ByVal sender As System.Object, ByVal e As Infragistics.Win.UltraWinSchedule.BeforeScrollEventArgs) Handles ultraMonthViewSingle.BeforeScroll

    '----------------------------------------------------------------------------------------------------
    '	Description
    '	BeforeScroll
    '
    '	Fires before the control is scrolled.
    '	If the BeforeScroll event is canceled, the control is not scrolled, and the AfterScroll event does not fire.
    '
    '----------------------------------------------------------------------------------------------------

    If e.ScrollAction = ScrollEventType.ThumbTrack Then e.Cancel = True

End Sub

C#

private void ultraMonthViewSingle1_BeforeScroll(object sender, Infragistics.Win.UltraWinSchedule.BeforeScrollEventArgs e)
{
	//----------------------------------------------------------------------------------------------------
	//	Description
	//	BeforeScroll
	//
	//	Fires before the control is scrolled.
	//	If the BeforeScroll event is canceled, the control is not scrolled, and the AfterScroll event does not fire.
	//
	//----------------------------------------------------------------------------------------------------

	if ( e.ScrollAction == ScrollEventType.ThumbTrack )
		e.Cancel = true;

}

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