This video will cover the following:
–How to call built-in and custom vba functions in an application.
–How to create a custom vba function.
Here’s the video:
There are 2 types of functions, “Built-in” and “Custom” functions. Buit-in functions are functions Access provides. Custom functions are vba functions you create because Access doesn’t provide a suitable built-in vba function.
'-> How to call built-in and custom vba functions in an application.
'-> How to create a custom vba function.
Private Sub btnConvert_Click()
'Built-in - convert text to upper case
Me.txtUCase = UCase(Me.txtUCase)
End Sub
Private Sub btnDate_Click()
'Built-in - enter today's date
Me.txtStartDate = Date
End Sub
Private Sub btnLeft_Click()
Dim strText As String
'Built-in - return the left 4 characters from the textbox entry.
strText = Left(Me.txtLeft, 4)
MsgBox strText
End Sub
Private Sub btnValidate_Click()
'Built-in - example of using a function in an If statement.
If Not IsNull(Me.txtValidate) Then
MsgBox "Thanks for your entry"
Else
MsgBox "Blank entries are not allowed, try again"
End If
End Sub
Private Sub btnCalculate_Click()
'Custom - calculate the due date
Me.txtEndDate = NetThirty(Me.txtStartDate)
End Sub
Function NetThirty(StartDate As Date) As Date
'return 30 days beyond the date passed
Dim dteNewDate As Date
dteNewDate = StartDate + 30
NetThirty = dteNewDate
End Function
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