How to create interactive calendar to highlight events & appointments [Tutorial]

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One of the popular uses of Excel is to maintain a list of events, appointments or other calendar related stuff. While Excel shines easily when you want to log this data, it has no quick way to visualize this information. But we can use little creativity, conditional formatting, few formulas & 3 lines of VBA code to create a slick, interactive calendar in Excel. Today, lets understand how to do this.

But first, a reminder to join my Advanced Excel masterclass in USA

As you may know, I am running my first ever Advanced Excel & Dashboards Masterclass in USA this summer (May / June 2013). We will be doing 2 day interactive sessions on Excel, advanced Excel, interactive charts, pivot tables & dashboards in Chicago, New York, Washington (DC) & Columbus (OH). If you live near any of these cities and want to become awesome in Excel, please consider enrolling in my Masterclass.

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Back to the interactive calendar

Coming back to our topic at hand – interactive calendar, what do we mean by this?

Well, something like below:

Interactive Event Calendar in Excel - Demo

How to create an interactive calendar from a set of events

1. Collect all the event data in a table

Just enter event data in a table like below:

Interactive calendar - event data

2. Set up a calendar in a separate rate

If your events span several months, then you can use formulas to generate calendar.

In my case, all the events (Masterclass sessions) are in May & June 2013. So I just entered date of May 1st in a cell, dragged it sideways and then re-arranged the cells to make it look like a calendar. At this stage, the calendar should look like this:

set up a blank calendar first - Interactive calendar

3. Name the calendar range

This is simple. Select all the cells in calendar range and give a name to it. I called mine “calendar”.

4. Assign a cell for identifying which date is selected

Select a blank cell in your workbook, give it a name like “selectedCell”. We will use this to identify which date is selected by user.

5. Write Worksheet_selectionchange() event

This will help us identify when user selects a cell in “calendar” range. The below 3 line VBA should do. Please attach it to the sheet where your calendar is.

Private Sub Worksheet_SelectionChange(ByVal Target As Range)
    If Not Application.Intersect(Target, Range("calendar")) Is Nothing Then
       [selectedCell] = ActiveCell.Value
    End If
End Sub

Tutorial: Showing details when user selects a cell

6. Set up the formulas to show details when a valid date is selected

Lets say, each event has 4 details associated with it – title, date, venue & description.

Now, we need to show details of the event when user selects a date in the calendar. Since the selected date is in “selectedCell”, we can use VLOOKUP, IF, IFERROR formulas to do this:

  • Fetch event title in a cell if date selected has an event in it. Else keep it blank
    • =IFERROR(VLOOKUP(selectedCell, table_of_events, event_title_column, false),"")
  • Fetch rest of event details, but keep them blank if date has no events.

Lets say these 4 details are fetched to cells D1, D2, D3 & D4 cells.

7. In calendar sheet, add 4 text boxes and assign them to cells

Finally, in calendar sheet, add 4 text boxes. Assign them to D1, D2, D3 & D4 cells. Arrange and format them as you fancy.

Tip: to assign a cell to text box, just select the text box, go to formula bar and type =D1 press enter.

8. Set up conditional formatting to highlight selected dates

Finally, add a simple conditional formatting rule to highlight the selected dates in calendar. This is simple. Assuming calendar starts at cell A1,

  • Select the calendar range
  • Go to conditional formatting
  • Add new rule
  • Select rule type as “Use a formula to determine which cells to highlight”
  • type the rule as =A1=selectedCell
  • Set up formatting

PS: in my data above, I have used different formula as we need to highlight 2 dates of a Masterclass even when 1 is selected.

Tip: Introduction to conditional formatting.

9. Clean up and formatting

Clean up your worksheets and format the calendar so that it looks gorgeous. And you are done!

Finalized Interactive calendar

 

Download Interactive Calendar Example file

Click here to download interactive calendar example file and play with it to understand this better.

Examine the formulas in “Calcs” sheet & VBA code so that you can see how this is weaved.

Work with calendar data often, then you are in luck

If you use calendar data often and are looking for some inspiration, ideas & examples on how to represent it, then check out below examples:

Do you like the interactive calendar?

I often use interactive calendars in my dashboards & client projects. Since calendars are very natural way to understand events, they work really well.

What about you? Do you use calendars often? How do you like the above technique? Please share your thoughts & ideas using comments.

PS: And if you are waiting to become awesome in Excel, then wait no more. Book your spot in my upcoming Masterclass. Click here.

 

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13 Responses to “Gantt Box Chart Tutorial & Template – Download and Try today”

  1. Oli says:

    Hi Chandoo

    As one of your students I have followed your detailed example through with great success. However, Excel is acting in an unexpected way and I wonder if you could take a look?
    http://cid-95d070c79aef808e.office.live.com/self.aspx/.Public/Gantt%20Box%20Chart.xlsm
    On my version, I have to type 40239 (Which equates to 2 Mar 2010) to get the chart to display 31 May 2010 (which should be 40329)!!??

    Have I done something wrong or is Excel acting up?

    Thx
    Oli
    PS Your example file in 2007 displays correctly.

  2. Dave says:

    Hi,

    I like this idea a lot, but I agree the name is a little drab.

    As an American I may just be seeing things, but to me the combination of lines and bars on your chart looks like a bunch of cricket bats.

    Maybe you could work that into a catchier name. 🙂

    Cheers!

  3. Bob says:

    Here is some code I use to keep the axis synched.
    It may be useful to some of your readers
    It is based on a comment I saw on Daily Dose of Excel.

    Function SynchGanttAxis(Cname, lower, upper)
    'Sets the X min and X max for Category axis

    Application.Volatile

    On Error Resume Next
    '
    'Top Horizontal Axis
    With ActiveSheet.Shapes(Cname).Chart.Axes(xlCategory, 1)
    .MinimumScale = lower
    .MaximumScale = upper
    End With

    'Bottom Horizontal Axis
    With ActiveSheet.Shapes(Cname).Chart.Axes(xlValue, 2)
    .MinimumScale = lower
    .MaximumScale = upper
    End With

    End Function

    Function SynchVerticalAxis(Cname, lower, upper)
    Application.Volatile
    On Error Resume Next
    ' Excel 2007 only
    'Right hand vertical axis
    With ActiveSheet.Shapes(Cname).Chart.Axes(xlValue, 1)
    .MinimumScale = 0
    .MaximumScale = upper
    End With

    End Function

  4. Chandoo says:

    @Oli.. Can you check your file again.. I see 40329...

    @Dave: Even I saw things.. the bars actually looked like lollipops. How about calling this lollipop chart - now that would be yummy and goes along the tradition of naming charts after eatables (bar, pie, donut...)

    @Bob: Superb stuff... thanks for sharing 🙂

  5. Mike H says:

    Hi Chandoo
    This looks really good and I think it can also be applied to show project phases / milestones.

    Question: Thinking further could this be amended to display a project lifecycle (Idea through to Implementation say 7 phases) on one bar / row? Just imagine 20 projects within a programme all on one chart one bar each showing their respective lifecycle stages i.e. on one page.

    Idea: As the Gantt Box Chart this is quite intensive to set up re formatting etc how about the added extra of once you have completed this to "Save as template" i.e. saves the formatting and layout of the chart as a template so you can apply to future charts. Simple to do and will save the time formatting etc again and again and again.
    Therefore tip: Click on your chart demo and then click on Save As template icon (2007) - edit file name and click on save. Ready to use / apply via Templates in Change Chart Type window.

    Thanks and be very interested if the lifecycle question can be resolved

    Mike

  6. Oli says:

    How embarrassing.

    I was obviously suffering from numerical dyslexia. I was one of those days.

  7. Chandoo says:

    @Mike H: You can easily make this chart to work like a generic project lifecycle plan chart. All you have to do is,

    1. in a separate sheet define the steps of lifecycle and various dates in a table (with 5 columns for each of the projects you have).
    2. now use a control cell to input the project name you want to show in the chart
    3. based on the input, use OFFSET Formulas to get the correct data
    4. Rest is same as the tutorial above

    For more info on the dynamic charting visit http://chandoo.org/wp/tag/dynamic-charts/ and http://chandoo.org/wp?s=OFFSET

  8. Your solution is really smart but in the en Excel isn't meant to do stuff like this. I, as a former PM, always thought is was frustrating that you had to do stuff like this for something simple like a Gantt chart. So I built Tom's Planner. And would like to plug it here. I think it really solves the problem you are trying to solve in the most efficient way. Check out http://www.tomsplanner.com for a free account or play around with the demo.

  9. Lopi says:

    Hi there,
    Chandoo - this is really a very nice and helpfull chart - I adopted it, so I can report a forecast or the delay of a certain task (coming from my role as an auditor for projects).
    One topic I´m currently struggeling with: I do have a project lasting for lets say 12 month. For a management reporting, I want to have kind of snapshot, lets say one month back and 2 month in the future. I tried with the offset formula, but failed. Any idea?
    Thx
    Lopi

  10. [...] Ein viel geliebter Klassiker ist die Erstellung von GANTT-Diagrammen mit Excel. Wir hatten das Thema wiederholt schon hier. Chandoo.org hat sich mal wieder mit einer neuen Variante hervorgetan: Das GANTT-Box-Chart. [...]

  11. David says:

    Hi Chandoo - fantastic xls. One thing I can't figure out how to do is adjust the alignment of the vertical axis. I would like to left align so that I could indent to represent sub tasks. Can that be done? Or is there a better way?

  12. Paul says:

    I've been trying to work out if there's a way to show weekends on the graph. The closest thing I've got is to add them on a secondary axis, but then I haven't been able to keep both axis lined up together! Any ideas?

    Following on from this - is it possible to show things like holidays?

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