An Introduction to VBA on Excel. Application on Logistics and Supply Chain Management is provided.

1. Introduction to
Excel VBA/Macros:
Some Examples on Logistics
and Supply Chain Management
Dr. Kang Mun Arturo Tan
Assistant Professor
Logistics and Supply Chain Management
Data Analytics
Yanbu University College

2. General Outline
A_Why does Excel VBA matter?
B_ What is VBA?
C_ How do we start with VBA?
D_ Recording some macros.
E_ Running the macros.
F_ Functions and Sub_Routines.
G_ The User Form.
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Thanks
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3. A_ Why does Excel VBA Matter

4. A_ Why does VBA Excel Matter
Excel is widely used across the world.

5. A_ Why does VBA Excel Matter
Excel is widely used across the world.
Many corporate data, both structured
and unstructured are in Excel.

6. A_ Why does VBA Excel Matter
Excel is widely used across the world.
Many corporate data, both structured
and unstructured are in Excel.
Processing of data residing in Excel
has become a routine work for many
professionals.

7. A_ Why does VBA Excel Matter
Excel is widely used across the world.
Many corporate data, both structured
and unstructured are in Excel.
Processing of data residing in Excel
has become a routine work for many
professionals.
Automating this work could be an added
advantage for the students who are
entering the workforce.
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8. B_ What is VBA
VBA stands for Visual Basic for
Application.
It is very similar to Visual Basic
in form and structure.
It works with Excel, Word, Access,
Powerpoint and Outlook.

9. Theory:
For Excel, it deals with Excel Object Model.
Object, intuitively, is like an XLNoid – a robot.
Method is a call to action.
Property is a data stored in that data basket, with
the XLNoid constantly checking, and deciding
if an action is needed.

10. Theory: Overall Structure
Application Project
Worksheets Modules User_Form
Macro Window
Buttons
Call Form
Read/Write Data

11. For Excel, it deals with Excel Object Model.
Application
Workbook
Worksheets
Range
Cell
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12. C_ How do we start with Excel VBA
Check for Activation
Demo for Start Up
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13. C_ How do we start with Excel VBA

14. C_ How do we start with Excel VBA

15. C_ How do we start with Excel VBA

16. C_ How do we start with Excel VBA

17. C_ How do we start with Excel VBA
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18. D_ Recording some VBA Macros Show
Recording
Process
Tan_D_Slide

19. D_ Recording some VBA Macros

20. D_ Recording some VBA Macros

21. D_ Recording some VBA Macros

22. D_ Recording some VBA Macros

23. D_ Recording some VBA Macros

24. D_ Recording some VBA Macros
Overall code

25. D_ Recording some VBA Macros
R[ Up/Down CellDistance] C[Left/Right CellDistance]
Focusing on the formula:
“R[-4] C + R[-3] C - R[-2] C “

26. D_ Recording some VBA Macros
ActiveCell.Offset( Up/Down CellStep, Left/Right CellStep)
Relative Recording

27. D_ Recording some VBA Macros
Calling both MyMacro01 and MyMacro02

28. D_ Recording some VBA Macros

29. D_ Recording some VBA Macros

30. D_ Recording some VBA Macros
Clearing the area
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31. E_ Running the macros
Alt+F8
Analyzing
the recorded
macros
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32. E_ Running the macros

33. E_ Running the macros

34. E_ Running the macros
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35. F_ Functions and Sub Routines
Cell
To Fill Up a Cell with a Value
To Fill Up a Cell with a Formula
To Read a Cell’s Value

36. F_ Functions and Sub Routines
BegInvy + Receipts – Issuances
= EndInvy
As a function:
As a subprocedure:
Demo for
Coding
of
Sub proc
and
Functions
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37. F_ Functions and Sub Routines
EoQ = Sqrt (2 DS / H )
D = Demand for a Year
S = Cost for each Ordering
H = Holding Cost per Item per Year
Demo for Preparing
A report
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38. Fc1_ General Example
Option Explicit
Sub MyMacroGetMax()
Dim q As Variant
Dim x(100) As Integer
Dim i As Integer, nPtr As Integer
Dim Start As Integer, Last As Integer, Num As Integer
Dim AssumedHeaviest, Heaviest As Integer
' Defining the array
q = Array(7, 2, 3, 20, 15, 6, 35, 12, 9, 5, 18, 23, _
9, 16, 22, 10)
Demo for Straight Coding
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39. Fc2_ General Example
Start = LBound(q)
MsgBox "StartBoxNo is " & Start
Last = UBound(q)
MsgBox "LastBoxNo is " & Last
Num = Last - Start + 1
MsgBox "BoxCount is " & Num
' = = == = = = = = =
' transferring the content of container q to container x.
‘ container x is a temporary place for comparison.
' ========= = = = = =
For i = Start To Last
x(i) = q(i)
Next i
' = = = = = = = = = = =

40. Fc3_ General Example
' = =
' assume the first box to be the heaviest.
' = = =
AssumedHeaviest = x(Start) ‘// Start means the first box
' = = = =
For nPtr = Start + 1 To Last ‘// Start+1 means the second box
If x(nPtr) > AssumedHeaviest Then
AssumedHeaviest = x(nPtr)
End If
Next nPtr
Heaviest = AssumedHeaviest
MsgBox "Heaviest is " & Heaviest
End Sub
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41. G_ UserForm Example
Call Demo G
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42. G_ UserForm Example

43. G_ UserForm Example

44. G_ UserForm Example

45. G_ UserForm Example

46. G_ UserForm Example

47. G_ UserForm Example
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48. H_ Overall Structure
Application Project
Worksheets Modules User_Form
Macro Window
Buttons
Call Form
Read/Write Data
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49. Thank You!!!!!
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