Article ID: 171128
Article Last Modified on 1/20/2007
APPLIES TO
- Microsoft Word 97 Standard Edition
This article was previously published under Q171128
SUMMARY
This article contains a sample Microsoft Visual Basic for Applications macro that determines the number of days in a specified month.
MORE INFORMATION
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The following macro prompts for a date in mm/dd/yyyy format and prints the number of days in the specified month in a message box.
Sub Date_NumDaysInMonth()
Dim iMon As Integer
Dim sDate As String
PromptForDate:
sDate = InputBox("Enter a date in the mm/dd/yyyy format")
' If Cancel was pressed, end macro.
If sDate = "" Then Exit Sub
' If Date entered is not a valid date, display message.
If Not IsDate(sDate) Then
MsgBox "Please enter a valid date."
GoTo PromptForDate
End If
' The Month function returns the month number (1-12) of the date.
Select Case Month(sDate)
Case 4, 6, 9, 11
sNumDays = "30"
Case 2
If Year(sDate) Mod 4 = 0 Then
sNumDays = "29"
Else
sNumDays = "28"
End If
Case Else
sNumDays = "31"
End Select
MsgBox Format$(sDate, "mmmm") & " of " & Format$(sDate, "yyyy") _
& " has " & sNumDays &" days."
End Sub
The macro takes leap years into consideration when computing the number of days in February. For example, this routine divides the year by 4 and if the remainder is 0, there are 29 days in February of the year specified. Otherwise, there are 28 days in February of the year specified.
For additional information, please see the following article in the Microsoft Knowledge Base:
173707 OFF97: How to Run Sample Code from Knowledge Base Articles
REFERENCES
For more information about getting help with Visual Basic for Applications, please see the following article in the Microsoft Knowledge Base:
163435 VBA: Programming Resources for Visual Basic for Applications
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Keywords: kbcode kbdtacode kbhowto kbmacroexample kbprogramming KB171128
