Thanks for the quick response that's a great example. I could not return the code as a zip as it exceeded limit.

If you add four text boxes,

Then add the code

TextBox1.Text = e.VisibleDateTimeRange.StartDateTime.ToLongDateString();
TextBox2.Text = e.VisibleDateTimeRange.StartDateTime.ToLongTimeString();
TextBox3.Text = e.VisibleDateTimeRange.EndDateTime.ToLongDateString();
TextBox4.Text = e.VisibleDateTimeRange.EndDateTime.ToLongTimeString();

to the end of 'private void ultraTimelineView1_VisibleDateTimeRangeChanged'

and add the code to the form load to set the intervals & headers

DateInterval dayinterval = new DateInterval(1, DateIntervalUnits.Days);
DateInterval monthinterval = new DateInterval(1, DateIntervalUnits.Months);
DateInterval yearinterval = new DateInterval(1, DateIntervalUnits.Years);
//Add year Header Additionally
ultraTimelineView1.AdditionalIntervals.Add(yearinterval);
//Set column header orientation for year
yearinterval.HeaderTextOrientation = TextOrientationInfo.Horizontal45Degrees;
//Set primary interval to months
ultraTimelineView1.PrimaryInterval = monthinterval;
// Prevent the user from sizing rows directly
ultraTimelineView1.OwnerSizing = Infragistics.Win.UltraWinSchedule.TimelineViewOwnerSizing.None;
// Prevent the user from sizing columns directly
ultraTimelineView1.ColumnSizing = Infragistics.Win.UltraWinSchedule.TimelineViewColumnSizing.None;
//Column width other than owner
ultraTimelineView1.ColumnWidth = 100;

What I am trying to achieve is to put events on the timeline and information corresponding to the events in the panel above. As I scroll the timeline I will scroll the panel by a similar amount making them appear a single entity.
You have achieved this using the scrollbar which is great and I will need to study this as it may be the answer I need.
Syncronising the two I thought could be done by determining the visible start and end dates in the timeline. With the additional code I display these for clarity in the four text boxes.
When you click on the button controls controlling the movement of the timeline either in the header or on each end of the timeline scroll bar, the date increments in months and this is reflected in the text boxes. When you do this using the centre of the scroll bar you can drag and drop the date to the middle of a month and this is not reflected in the text boxes.
This in turn prevents me from syncronising the timeline view to the information I will put in the panel view.
I had tried ensure date visible but feel I need the equivalent of

' Get the next/previous date depending on the navigation direction.

Dim forward As Boolean = IIf(e.NavigationDirection = DateNavigationDirection.Forward, True, False)

nextDate = timeInterval.GetNextDate(nextDate, forward)

' Call EnsureDateTimeVisible to navigate to the date

control.EnsureDateTimeVisible(nextDate, forward = False)

But for the scroll bar.

Thanks again for the update. I have problems zipping your example up small enough to meet your limit so I have zipped up just my form. I only have an old version of winzip.

In your example you enter dates in the textbox to move the timeline. This was not what I was trying to describe. The new form should show that if you move the scroll bar using its central slider control of the scrollbar , the returned dates in Month view (not hour view which is probably the smallest increment) scroll less than a full month yet the return from the scroll event to the textboxes indicate it has scrolled full months which is untrue.

You may need to swap out the controls as I am using different versions.

Cheers

Phil

Thank you for your responses Georgi, what you have provided is a very effective solution and much better than the method I originall proposed to use.

Just a note, I enclose a Word document which should explain my original confusion.