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Ensure Foolproof Data Entry Times

Ensure Foolproof Data Entry Times

Asking users to enter time values can often lead to problems formatting what the user enters. I use this piece of code to create a drop-down list of hours, minutes, and AM/PM, which ensures the user specifies the proper time and eliminates problems manipulating the time later in the program.

To use this example, create a combo-box array with three combo boxes: lower bound = 0; upper bound = 2; and a command button. Use this code:

 Private Sub Form_Load()	Dim i As Integer, strTemp As String	'Fill hour combo box	For i = 12 To 1 Step -1		Combo1(0).AddItem i	Next i	'Fill minutes combo box	For i = 0 To 59		strTemp = i		If Len(strTemp) = 1 Then strTemp = "0" & i		Combo1(1).AddItem ":" & strTemp	Next i	'Fill AM/PM combo box	Combo1(2).AddItem "AM"	Combo1(2).AddItem "PM"	'First item in each combo box is displayed	For i = Combo1.LBound To Combo1.UBound		Combo1(i).ListIndex = 0	Next iEnd SubPrivate Sub Command1_Click()	Dim sTime	'Format the time VB style	sTime = "#" & Combo1(0) & Combo1(1) & ":00 " _		& Combo1(2) & "#"	MsgBox sTimeEnd Sub
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