Version

BeforeScroll Event (UltraDayView)

Event fired before the control is scrolled.
Syntax
'Declaration
 
Public Event BeforeScroll As BeforeDayViewScrollEventHandler
public event BeforeDayViewScrollEventHandler BeforeScroll
Event Data

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

PropertyDescription
Cancel (Inherited from System.ComponentModel.CancelEventArgs) 
Date Returns the date of new first visible column.
Owner Returns the owner of new first visible column.
ScrollType Returns the type of scrolling operation.
TimeSlot Returns the new first visible time slot.
Remarks

This event is fired before the time slots are scrolled, due to either a user click on the scrollbar or a programmatic repositioning of the scrollbar via a call to the EnsureTimeSlotVisible(Int32,Boolean) method.

A reference to the TimeSlot object which would occupy the first visible time slot position after the scroll is passed in the event args.

The scroll operation can be canceled from within this event by setting the event args Cancel parameter to true.

Example
The following code demonstrates how to access the information passed in the event arguments of the BeforeScroll event and optionally cancel the event.

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.

Imports System.Diagnostics
Imports Infragistics.Win
Imports Infragistics.Win.UltraWinSchedule

	Private Sub UltraDayView1_BeforeScroll(ByVal sender As Object, ByVal e As Infragistics.Win.UltraWinSchedule.BeforeDayViewScrollEventArgs) Handles UltraDayView1.BeforeScroll

		Dim dr As DialogResult = MessageBox.Show(Me, "The control is about to scroll, placing the timeslot starting at '" + e.TimeSlot.StartTime.ToShortTimeString() + "' at the top of the time slot display. Do you want to cancel the scroll?", "Cancelable DayView Event", MessageBoxButtons.YesNo)

		If dr = DialogResult.Yes Then
			e.Cancel = True
		End If

	End Sub
using System.Diagnostics;
using Infragistics.Win;
using Infragistics.Win.UltraWinSchedule;

		private void ultraDayView1_BeforeScroll(object sender, Infragistics.Win.UltraWinSchedule.BeforeDayViewScrollEventArgs e)
		{

			DialogResult dr =  MessageBox.Show(this, "The control is about to scroll, placing the timeslot starting at '" + e.TimeSlot.StartTime.ToShortTimeString() + "' at the top of the time slot display. Do you want to cancel the scroll?", "Cancelable DayView Event", MessageBoxButtons.YesNo);

			if (dr == DialogResult.Yes)
				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

See Also