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A Professional Calendar/Agenda View That You Will Use

, 27 Aug 2009 LGPL3
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An Outlook style calendar view with appointments and all-day events, and multiple day view support.


As you can see in the screenshots, this is a fully capable calendar view for specifying appointments and all day events. It has several features so you can control what happens inside, like item blocking and item-oriented events.

It's 100% managed code! No resources; as with most of my projects, you can just include all the source files into your project to make it work.


I found a couple of controls like this, but as always, they don't meet my needs, so here I come. It performs fairly well, but mostly will depend on your implementation - I'll explain that in the next section.

Using the Code

To add a calendar to your form, just drag the Calendar control. It's located under the System.Widows.Forms.Calendar namespace.

When to Use it

It can be used to display any information that is based on a date, not just appointments and meetings. Think about it, on what ugly control do you display your system log?

Controlling the View

The view of the Calendar is given by a date range provided by the ViewStart and ViewEnd properties. Depending on the number of days between these two dates, the calendar will draw them.

The Calendar can show days in two modes: Expanded and Short (see Calendar.DaysMode). Expanded is the style of the first screenshot: the days are shown in a column, and items are placed in the time they belong; while the Short mode (second screenshot) shows days on week rows, and items are shown in a more compact way.

An important property here is MaximumFullDays (by default, 8). This property indicates that when you specify a view of 8 days or less, the days will be shown in Expanded mode. Any more days will be displayed in Short mode.

Feeding Items to the Calendar

The calendar tells you when to add items to it with the LoadItems event. In that event, you should manage to bring information to display in the calendar, by adding items to the Items collection of the calendar. The event is raised every time the view changes. I strongly suggest that you use caching and not query the database every time this event is raised, because performance will be severely affected.

The demo project in the source loads items from a memory array, so it's not the best example.

private void calendar1_LoadItems(object sender, CalendarLoadEventArgs e)
    //Load items whose date range intersects e.DateStart and e.DateEnd
    foreach(CalendarItem item in loadedItems)
    //Or even better....

I strongly suggest to add items that only intersect with the calendar's view range. You can learn how to check date intersection by taking a look at the implementation of DateIntersects, in Calendar:

public static bool DateIntersects(DateTime startA, DateTime endA, 
                                  DateTime startB, DateTime endB)
     //Don't forget to check dates this way in your database queries!
     return startB < endA && startA < endB;


Since you can explore other members using IntelliSense I list events here; they are important because they let you control your application of the Calendar.

  • DayHeaderClick: Occurs when a day header is clicked.
  • ItemClick: Occurs when an item is clicked.
  • ItemCreated: Occurs when an item is successfully created.
  • ItemCreating: Occurs when the user is about to create an item. It can be cancelled.
  • ItemDatesChanged: Occurs when the date range of an item changes.
  • ItemDeleted: Occurs when an item is successfully deleted.
  • ItemDeleting: Occurs when the user is about to delete an item. It can be cancelled.
  • ItemDoubleClick: Occurs when an item is double clicked.
  • ItemMouseHover: Occurs when the mouse is placed over an item.
  • ItemSelected: Occurs when an item is selected.
  • ItemTextEdited: Occurs when an item's text is edited by the user.
  • ItemTextEditing: Occurs when the user is trying to edit an item's text. It can be cancelled.
  • LoadItems: Occurs when the Calendar view is changed.

Some Nice Features

Items Overlapping

When items intersect in their date ranges, there's a nice algorithm that performs a layout to accommodate them. Give it a try.

Item Coloring

Although a Renderer takes charge of drawing items, you can specify the background colors and borders to items individually.

Even better, you can use the ApplyColor method (in CalendarItem) to an item, and the code will take charge of shading colors for the background, border, and text.

In the demo application, use the calendar's contextual menu to apply coloring to items.


You can choose between options of time scaling, though, the default is 30 minutes like Outlook's calendar. Here is a sample of a 15 minutes timescale.

In the demo application, use the calendar's contextual menu to choose different timescale options.


Don't you absolutely hate the way the MonthCalendar control behaves on your UI? Well, here is the solution. Now, the project contains a control called MonthView, which looks like the Outlook calendar's view, fully customizable, and it does not force the size of the control; the visualization of months will depend on the size of the container.

Some interesting properties of the control are:

  • FirstDayOfWeek - To change what day your weeks start with.
  • ItemPadding - To set the padding of the internal items, so you can make a compact or not so much view.
  • SelectionMode - Manual, Day, Week, WorkWeek, and Month.
  • WorkWeekStart - To specify what day the work-weeks start with.
  • WorkWeekEnd - To specify what day the work-weeks end with.


  • Aug 02 2009: First release.
  • Aug 05 2009
    • License changed to LGPL.
    • Added the FirstDayOfWeek property to change what day your weeks start with.
    • Added the Tag property to CalendarItem.
  • Aug 27 2009
    • Added minute exact indicators.
    • Added keyboard arrows support.
    • Added Image and ImageAlign properties to CalendarItem for adding images to items.
    • Added Pattern and PatternColor properties to CalendarItem for marking items with textures.
    • Added the MonthView control to have a nice calendar control.


This article, along with any associated source code and files, is licensed under The GNU Lesser General Public License (LGPLv3)


About the Author

Jose Menendez Póo
Team Leader
Mexico Mexico
I'm in game programming now:

Jose Manuel Menéndez Poó

- I've been programming Windows and Web apps since 1997.
- My greatest concern nowadays is user interface usability.

Questions and stuff by twitter: @menendezpoo


Comments and Discussions

QuestionHow to Programmatically Set CalendarView SelectedElement PinmemberJeffrey A Grunschel14-Apr-15 20:12 
QuestionIs it possible to highlight dates on MonthView control? PinmemberKebrite11-Apr-15 12:33 
QuestionMessage Removed PinmemberAshish Khatavkar23-Mar-15 20:13 
QuestionHow to remove textbox in double click event of calender PinmemberGBVSivaRamKumar12-Mar-15 7:49 
Questionkeys not working on monthview PinmemberMember 1018984011-Mar-15 1:49 
QuestionVersion Visual Basic 2010 PinmemberMember 115071768-Mar-15 1:31 
Question[Help] SelectionMode PinmemberMember 114673877-Mar-15 5:09 
QuestionRuntime Exception PinmemberMember 82194076-Mar-15 4:41 
AnswerRe: Runtime Exception PinmemberMember 1116143910-Apr-15 12:49 
Questionunmerge textbox control Pinmemberjohn belush26-Feb-15 7:08 
QuestionHow to remove timescale PinmemberMember 1018984020-Feb-15 20:53 
QuestionChanging background color PinmemberMember 1068586420-Feb-15 9:09 
Generalayuda PinmemberMember 1145978718-Feb-15 8:45 
GeneralRe: ayuda PinmemberMember 1068586423-Feb-15 3:57 
QuestionThanks! PinmemberMember 1085122211-Feb-15 22:13 
QuestionRemove moving if double click Pinmemberkilledman21-Jan-15 10:03 
AnswerRe: Remove moving if double click Pinmemberkilledman23-Feb-15 9:03 
QuestionHow do i check a time interval (for example 17:00 - 18:00) if there are appointments? Pinmemberalexbadea19-Jan-15 4:15 
AnswerRe: How do i check a time interval (for example 17:00 - 18:00) if there are appointments? PinmemberMember 1068586423-Feb-15 4:24 
QuestionHi,need the documentation PinmemberMember 1128599910-Dec-14 20:36 
QuestionScroll bar on day view - how To Pinmemberjose.lopes10-Dec-14 13:14 
AnswerRe: Scroll bar on day view - how To PinmemberMember 1106257717-Dec-14 18:27 
GeneralRe: Scroll bar on day view - how To Pinmemberjose.lopes22-Dec-14 2:04 
QuestionHow do I set a day to show starting at 06:00 in stead of 12am ? PinmemberALZDBA29-Nov-14 4:54 
AnswerRe: How do I set a day to show starting at 06:00 in stead of 12am ? PinmemberMember 110625771-Dec-14 14:35 
AnswerRe: How do I set a day to show starting at 06:00 in stead of 12am ? PinmemberMember 38896449-Dec-14 0:08 
QuestionHi, How to make it work with database ? PinmemberMurulimadhav129-Nov-14 1:06 
AnswerRe: Hi, How to make it work with database ? PinmemberMember 112809564-Jan-15 21:22 
GeneralRe: Hi, How to make it work with database ? PinmemberMurulimadhav118-Jan-15 16:57 
QuestionUsing Timer Pinmemberruiter25-Nov-14 2:03 
BugFound a little bug PinmemberMember 388964420-Nov-14 11:15 
Questionhow do I select a given date ? PinmemberALZDBA20-Nov-14 2:41 
GeneralMy vote of 5 Pinmember Gun Gun Febrianza16-Nov-14 23:18 
Bug1 CalendarItem not appearing [modified] Pinprofessional i0030-Oct-14 15:24 
QuestionHow to programmably set the Calendar selected date? PinmemberMember 1031839418-Oct-14 4:59 
AnswerRe: How to programmably set the Calendar selected date? PinmemberJeffrey A Grunschel14-Apr-15 19:37 
QuestionChange the Time PinmemberMember 1116156617-Oct-14 21:21 
BugDiferents items in same date and same hour Pinmemberpcls8116-Oct-14 7:00 
GeneralRe: Diferents items in same date and same hour Pinmemberpcls8116-Oct-14 7:21 
GeneralRe: Diferents items in same date and same hour Pinmemberraisa290412-Jan-15 8:45 
GeneralRe: Diferents items in same date and same hour Pinmemberpcls8116-Oct-14 21:50 
GeneralMy vote of 2 Pinmembersubahani.sm13-Oct-14 5:16 
GeneralMy vote of 5 PinmemberMember 1096551912-Oct-14 9:00 
Suggestionabout sorting the calendar PinmemberPhilippe Hollmuller25-Sep-14 3:36 
QuestionRe: about sorting the calendar PinmemberKebrite10-Apr-15 6:45 
Questionshow start/end time in month-vew mode Pinmemberpasqualeceglie19-Sep-14 0:26 
QuestionMaestro! PinmemberAntonio Lopez R27-Aug-14 8:12 
QuestionMultiple Calendars Pinmemberschuster19uk25-Aug-14 9:24 
QuestionAYUDA. Como utilizarlo en VB PinmemberMember 1074412722-Aug-14 3:04 
AnswerRe: AYUDA. Como utilizarlo en VB Pinmemberaladdid22-Aug-14 6:56 

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