mtgc said:

I dont want to see the year in the dropdown calendar (just the month). Is it possible?

Assign an instance of this class to the contorl's CreationFilter property:

using nsMonthViewMulti = Infragistics.Win.UltraWinSchedule.MonthViewMulti;

#region NoYearCreationFilter
public class NoYearCreationFilter : IUIElementCreationFilter
{

    #region IUIElementCreationFilter Members

    void IUIElementCreationFilter.AfterCreateChildElements(UIElement parent)
    {
        nsMonthViewMulti.MonthHeaderAreaUIElement headerAreaElement =
            parent as nsMonthViewMulti.MonthHeaderAreaUIElement;

        if ( headerAreaElement != null )
        {
            TextUIElement textElement = headerAreaElement.GetDescendant( typeof(TextUIElement) ) as TextUIElement;
            if ( textElement != null )
            {
                nsMonthViewMulti.VisibleMonth visibleMonth =
                    headerAreaElement.GetContext( typeof(nsMonthViewMulti.VisibleMonth) ) as
                    nsMonthViewMulti.VisibleMonth;

                if ( visibleMonth != null && visibleMonth.Month != null )
                {
                    int monthNumber = visibleMonth.Month.MonthNumber;
                    string monthName = visibleMonth.Month.CalendarInfo.MonthsOfYear[monthNumber].LongDescriptionResolved;
                    textElement.Text = monthName;
                }
            }
        }
    }

    bool IUIElementCreationFilter.BeforeCreateChildElements(UIElement parent)
    {
        return false;
    }

    #endregion
}
#endregion NoYearCreationFilter

mtgc said:

dont want the user can write in the text area, but choose the day only through the dropdown calendar. Is it possible?

Handle the control's KeyPress event and set the 'Handled' property of the event arguments to true. This will prevent alpha-numeric keystrokes from being processed, while still allowing operational keys, i.e., navigational keys, F4, etc.