The MultiCalendar combines X Microsoft Calendars that can be positioned in a grid with rows and columns. The selected dates, blackout dates and highlighted dates can be chosen from any calendars. The Background/Foreground of any CalendarDayButton can be easily customized based on its state(selected/highlighted/blackout/mouseOver/focused/today) and the background of any Calendar can be customized with an image or a brush.

'Declaration
 
<TemplatePartAttribute(Name="PART_PreviousMonthButton", Type=System.Windows.Controls.Button)>
<StyleTypedPropertyAttribute(Property="FocusVisualStyle", StyleTargetType=System.Windows.Controls.Control)>
<XmlLangPropertyAttribute("Language")>
<UsableDuringInitializationAttribute(True)>
<RuntimeNamePropertyAttribute("Name")>
<UidPropertyAttribute("Uid")>
<TypeDescriptionProviderAttribute(MS.Internal.ComponentModel.DependencyObjectProvider)>
<NameScopePropertyAttribute("NameScope", System.Windows.NameScope)>
Public Class MultiCalendar 
   Inherits System.Windows.Controls.Control

'Usage
 
Dim instance As MultiCalendar

[TemplatePart(Name="PART_PreviousMonthButton", Type=System.Windows.Controls.Button)]
[StyleTypedProperty(Property="FocusVisualStyle", StyleTargetType=System.Windows.Controls.Control)]
[XmlLangProperty("Language")]
[UsableDuringInitialization(true)]
[RuntimeNameProperty("Name")]
[UidProperty("Uid")]
[TypeDescriptionProvider(MS.Internal.ComponentModel.DependencyObjectProvider)]
[NameScopeProperty("NameScope", System.Windows.NameScope)]
public class MultiCalendar : System.Windows.Controls.Control