1. Developing an Excel Applications
By Prof. H-M. Haav

2. For creating an application one needs
Macros
Modules
Controls

3. Macros can be created in two ways:
Recording
plan actions you need to automate
Tools>Record a new macro
perform actions you need to automate
stop recording
Writing macros in VBA
Tools>macros

4. Visual Basic for Applications VBA
1. Structure of Procedure (module)
Sub name_of_program (parameters,…)
<statements>
…..
End sub

5. 2. Reading data from active sheet
variable = cell (reading one value)
S =
S=Range(“A1”)
S=Range (“Start”)
S=Cells(1,1)
Cells(row index, column index)
returns value of specified cell

6. 2. Writing data to active sheet
range = expression
Cells(1,1) = 5
Range(“A1”) = “last name”
Range (“Start”) = “last name”
Cells(1,2) = SUM (B1:B7)

7. Naming ranges is useful for creating programs in VBA
Sheets(“Sheet name”).Range(“Start”)

8. 4. Dialog Boxes allow dialog with end-user of an application
Sub computer (optional Year)
Year =InputBox(“Input year of craetion of the first PC”)
If Year = 1976 Then msg=“True!”
Else msg=“False!”
MsgBox msg
End Sub

9. Objects and classes in Excel
Application
Command bars
dialog
Workbook(s)
chart
windows
Chart objects
Worksheet(s)
Shape(s)
Range

10. References to objects Workbooks(“BananaMadness.xls”)
Worksheets(“Title Sheet”)
Sheets(1)
ActiveWorkbook.Sheets(3)
Rows(3)
Columns(1)
Range(“Starts”).Cells (all cells in the range)

11. Properties of objects Object.[property] x=Range(“Starts”).value
assigns variable x a value of range called Starts
.ActiveSheet
.ActiveCell
.Selection
Range(“Starts”).CurrentRegion
…etc

12. Methods of objects Object.method[arguments]
Worksheet(“Title Sheet”).Select
Worksheet(“Title Sheet”).Activate
Worksheet(“Title Sheet”).Calculate
Worksheet(“Title Sheet”).Delete
Range(“Starts”).Clear
…etc

13. Controls Button Radio button Combo box To create a control
turn on Forms toolbar
select the control
drag the control to needed area
define properties

14. Assign macro to a control
select the control
on Tools menu, click Assign Macro
enter or choose the name of your existing macro

15. Examples of recorded macros
Sub TotalBonus()
Range("I7").Select
ActiveCell.FormulaR1C1 = "=SUM(RC[-2]:RC[-1])"
Selection.AutoFill Destination:=Range("I7:I10"), Type:=xlFillDefault
Range("I7:I10").Select
Selection.Style = "Currency"
End Sub