If txtYear.Text = "" Then
MsgBox "Please Enter Year", vbOKOnly, "Data Entry Error"
txtYear.SetFocus
ElseIf IsNumeric(txtYear.Text) = False Then
MsgBox "Please Enter a Valid Numeric Year", _
vbOKOnly, "Data Entry Error"
txtYear.Text = ""
txtYear.SetFocus
Else
intYear = Val(txtYear.Text)
If intYear Mod 400 = 0 Then
lblLeapYear.Caption = "Yes"
ElseIf intYear Mod 4 = 0 Then
If intYear Mod 100 = 1 Then
lblLeapYear.Caption = "Yes"
End If
Else: lblLeapYear.Caption = "No"
End If
End If