I too, one way or another stumbled on the same dilemma, why the heck Excel VBA doesn't have a Date Picker
. Thanks to Sid, who made an awesome job to create something for all of us.
Nonetheless, I came to a point where I need to create my own. And I am posting it here since a lot of people I'm sure lands on this post and benefit from it.
What I did was very simple as what Sid does except that I do not use a temporary worksheet. I thought the calculations are very simple and straight forward so there's no need to dump it somewhere else. Here's the final output of the calendar:

How to set it up:
- Create 42
Label
controls and name it sequentially and arranged left to right, top to bottom (This labels contains greyed 25
up to greyed 5
above). Change the name of the Label
controls to Label_01,Label_02 and so on. Set all 42 labels Tag
property to dts
.
- Create 7 more
Label
controls for the header (this will contain Su,Mo,Tu...)
- Create 2 more
Label
control, one for the horizontal line (height set to 1) and one for the Month and Year display. Name the Label
used for displaying month and year Label_MthYr
- Insert 2
Image
controls, one to contain the left icon to scroll previous months and one to scroll next month (I prefer simple left and right arrow head icon). Name it Image_Left
and Image_Right
The layout should be more or less like this (I leave the creativity to anyone who'll use this).

Declaration:
We need one variable declared at the very top to hold the current month selected.
Option Explicit
Private curMonth As Date
Private Procedure and Functions:
Private Function FirstCalSun(ref_date As Date) As Date
'/* returns the first Calendar sunday */
FirstCalSun = DateSerial(Year(ref_date), _
Month(ref_date), 1) - (Weekday(ref_date) - 1)
End Function
Private Sub Build_Calendar(first_sunday As Date)
'/* This builds the calendar and adds formatting to it */
Dim lDate As MSForms.Label
Dim i As Integer, a_date As Date
For i = 1 To 42
a_date = first_sunday + (i - 1)
Set lDate = Me.Controls("Label_" & Format(i, "00"))
lDate.Caption = Day(a_date)
If Month(a_date) <> Month(curMonth) Then
lDate.ForeColor = &H80000011
Else
If Weekday(a_date) = 1 Then
lDate.ForeColor = &HC0&
Else
lDate.ForeColor = &H80000012
End If
End If
Next
End Sub
Private Sub select_label(msForm_C As MSForms.Control)
'/* Capture the selected date */
Dim i As Integer, sel_date As Date
i = Split(msForm_C.Name, "_")(1) - 1
sel_date = FirstCalSun(curMonth) + i
'/* Transfer the date where you want it to go */
MsgBox sel_date
End Sub
Image Events:
Private Sub Image_Left_Click()
If Month(curMonth) = 1 Then
curMonth = DateSerial(Year(curMonth) - 1, 12, 1)
Else
curMonth = DateSerial(Year(curMonth), Month(curMonth) - 1, 1)
End If
With Me
.Label_MthYr.Caption = Format(curMonth, "mmmm, yyyy")
Build_Calendar FirstCalSun(curMonth)
End With
End Sub
Private Sub Image_Right_Click()
If Month(curMonth) = 12 Then
curMonth = DateSerial(Year(curMonth) + 1, 1, 1)
Else
curMonth = DateSerial(Year(curMonth), Month(curMonth) + 1, 1)
End If
With Me
.Label_MthYr.Caption = Format(curMonth, "mmmm, yyyy")
Build_Calendar FirstCalSun(curMonth)
End With
End Sub
I added this to make it look like the user is clicking the label and should be done on the Image_Right
control too.
Private Sub Image_Left_MouseDown(ByVal Button As Integer, ByVal Shift As Integer, _
ByVal X As Single, ByVal Y As Single)
Me.Image_Left.BorderStyle = fmBorderStyleSingle
End Sub
Private Sub Image_Left_MouseUp(ByVal Button As Integer, ByVal Shift As Integer, _
ByVal X As Single, ByVal Y As Single)
Me.Image_Left.BorderStyle = fmBorderStyleNone
End Sub
Label Events:
All of this should be done for all 42 labels (Label_01
to Lable_42
)
Tip: Build the first 10 and just use find and replace for the remaining.
Private Sub Label_01_Click()
select_label Me.Label_01
End Sub
This is for hovering over dates and clicking effect.
Private Sub Label_01_MouseDown(ByVal Button As Integer, ByVal Shift As Integer, _
ByVal X As Single, ByVal Y As Single)
Me.Label_01.BorderStyle = fmBorderStyleSingle
End Sub
Private Sub Label_01_MouseMove(ByVal Button As Integer, ByVal Shift As Integer, _
ByVal X As Single, ByVal Y As Single)
Me.Label_01.BackColor = &H8000000B
End Sub
Private Sub Label_01_MouseUp(ByVal Button As Integer, ByVal Shift As Integer, _
ByVal X As Single, ByVal Y As Single)
Me.Label_01.BorderStyle = fmBorderStyleNone
End Sub
UserForm Events:
Private Sub UserForm_Initialize()
'/* This is to initialize everything */
With Me
curMonth = DateSerial(Year(Date), Month(Date), 1)
.Label_MthYr = Format(curMonth, "mmmm, yyyy")
Build_Calendar FirstCalSun(curMonth)
End With
End Sub
Again, just for the hovering over dates effect.
Private Sub UserForm_MouseMove(ByVal Button As Integer, ByVal Shift As Integer, _
ByVal X As Single, ByVal Y As Single)
With Me
Dim ctl As MSForms.Control, lb As MSForms.Label
For Each ctl In .Controls
If ctl.Tag = "dts" Then
Set lb = ctl: lb.BackColor = &H80000005
End If
Next
End With
End Sub
And that's it. This is raw and you can add your own twist to it.
I've been using this for awhile and I have no issues (performance and functionality wise).
No Error Handling
yet but can be easily managed I guess.
Actually, without the effects, the code is too short.
You can manage where your dates go in the select_label
procedure. HTH.