Excel VBA - The Complete Excel VBA Course for Beginners

In this lesson we create a macro from scratch and begin to write our first code. Its a simple little bit of code to start with so we begin to understand the VBA object model and get familiar with VBA terminology and grammar.

This lesson covers;

• Inserting a module and renaming it
• Creating a new sub procedure
• Laying out code
• Writing comments
• VBA syntax and terminology
• Running a sub procedure
• Referencing cells and changing values

You will always have a need to record a macro. It will generate code for you quicker than you can type, and help you learn the VBA for specific Excel commands you have not written before.

However recorded code is not as clean as written VBA and can often need some tidying up afterwards.

This lesson covers;

• Two typical examples of the macro recorder generating redundant code.
• Editing the code so that it is faster and easier to read.

Your VBA code is sure to have to refer to different cells, sheets and books. There are many different techniques for doing this. What you use depends on your location when you write the reference, and why you are doing it.

This lesson covers;

• Techniques for referring to different workbooks.
• Techniques for referring to different sheets.
• Techniques for referring to cells such as the ActiveCell, Range, Cells, defined names and Selection.
• Inputting values to cells.
• Copying and pasting values.
• Using the Offset object.
• Stepping through code to understand and troubleshoot it.

There are three different types of error, logical, syntax and run-time errors. Until these errors are resolved you will not be able to run your procedures, or they will not run effectively.

This lesson covers;

• Debugging syntax errors.
• Debugging run-time errors.
• Working in Break Mode.

This quiz contains questions from the Introduction to VBA section.

Variables are used to store data during a macro. They can store data captured from a function, userform or message box.

They are faster, more meaningful and more dynamic than storing data in a worksheet They are a fundamental skill of VBA programming that will be used throughout the rest of this course.

This lesson covers;

• Using variables to store data during a procedure.
• The importance of declaring variables.
• How to declare variables and understanding different variable data types.
• Tracking variables using the Locals Window.

Declaring your variables is not required in VBA. However it is highly recommended to create faster, more readable code that is also easier to track and debug.

This lesson covers;

• Use Option Explicit to force variable declaration.
• Set the Editor to require variable declaration in all code modules.
• Common VBA errors relating to using variables.

The scope of a variable is its Accessibility to other procedures in the project.There are three levels of Scope: Public Module, Private Module and Procedure.

This lesson covers;

• Declare and use a variable accessible to all procedures within a module.
• Create a variable accessible to procedures across all modules of a project.

Using an object variable allows you to store a reference to an Excel object. This object can be a range of cells, sheet, workbook or any other Excel object.

Using such a variable makes referencing that object during your code easier, faster and more readable.

This lesson covers;

• Declaring object variables.
• Using the Set keyword.
• Using Worksheet and Range object variables.

This quiz tests your knowledge on topics covered in the Using Variables section.

The If statement provides decision making for your code. It can be used for a single or multiple tests. The structure for an If statement is shown below.

This lesson covers;

• The structure of the If.. Then.. Else statement
• Writing single and multiple test If statements
• Using AND and OR logic

The Select Case statement compares a single test expression against multiple possible values. Each case test consists of a test and an outcome to that test. The outcome statements may be multiple lines.

Select Case is considered more concise and readable than the equivalent If structure. The structure of Select Case is shown below.

This lesson covers;

• The structure of the Select Case statement
• Using Select Case for multiple tests on a value

Conditional loops are used to repeat a set of instructions while a certain condition is satisfied, or until a certain condition is satisfied.

This lesson covers;

• Writing Do While and Do Until loop structures.
• Checking a condition before the loop, or after executing the command once.

The Cells object provides a fast and effective way to reference cells when using loops. It is a better alternative to using Activecell and its Offset property when you are looping through a very large list.

This lesson covers;

• Understanding the benefits of the Cells object in loops.
• Use the Cells object to reference cells in a Do Until loop.

This lesson looks at using a conditional loop to check and update an inventory list.

This lesson covers;

• Using a Boolean variable for the loops condition.
• The Do Until loop structure to loop through a list until an entry is found, or we hit the bottom of the list.
• Adding new stock to the list and enter todays date for the transaction.
• Using the Cells object to reference the cells in the list.

Counter loops iterate a loop for a specific number of repetitions. We can enter the specific number of repetitions for the loop, or use a variable or collection.

This lesson covers;

• Writing the For Next loop structure.
• Using a counter loop to remove the blank rows from a worksheet.
• Using the CountA function to count non-bank cells.

Counter loops can be used to iterate through every object within a collection. For example, to loop through all the worksheets in a file, or through every open workbook.

This lesson covers;

• Using the For Next loop structure to loop through every worksheet in a file.
• Protect the worksheets of a workbook.

Collection loops repeat a set of instructions on every object within a collection. Object variables make it easier to reference the objects during the loop.

This lesson covers;

• Writing the For Each Next loop structure.
• Using a collection loop to perform an action on every cell within a range selected by the user.
• Convert text to uppercase using the Ucase function.

Loops can be inserted into other loops creating interior and exterior loops, or nested loops. Any loop can be inserted inside another is used for many reasons. For example, to loop through all the worksheets (interior loop) for multiple books (exterior loop), or to loop through all cells in a range (interior loop) on all worksheets of a book (exterior loop).

This lesson covers;

• Using multiple Do loops.
• Getting our inventory list spreadsheet to update for multiple stock items.
• Making edits to your code to work with nested loops.

A big aspect of an efficient procedure is the speed that it executes. The more calculations you ask it to perform, information it stores and loops it goes through will all contribute to the weight of your procedure.

There are a few settings that can be switched off to improve the speed that a procedure executes, and to stop interference whilst it runs.

This lesson covers;

• Changing application settings to dramatically improve the speed a macro executes.
• Changing settings to prevent interference from the application whilst a procedure executes.

One thing you can almost guarantee is that your code will contain bugs at some point. A bug simply means that your code is not functioning properly. They are typically generated by typing mistakes, or errors in the code’s logic.

This course has already covered some techniques for solving bugs in our code. This lesson explores a few other debugging tools that you might find useful.

This lesson covers;

• Using Breakpoints to stop code running at specific points.
• Using the Immediate Window to test code and check the values of variables and cells.
• Using the Watch Window to track specific variables and get code to break dependent upon expressions.
• Solving two minor bugs in the code of our inventory list spreadsheet.

There are many reasons why Runtime Errors occur in a procedure. The ability to handle these errors before they happen is an essential part of VBA programming.

The On Error Resume Next statement is used to shut errors down so that your code continues to run, and is not interfered with.

This lesson covers;

• How to use the On Error Resume Next statement in a procedure.
• An example of how this statement can be used to prevent errors occurring during a procedure.
• An understanding of the limitations of this statement and when not to use it.

Error handlers can be created to effectively handle runtime errors in a procedure. An error handler is a section of code created to run in the case of an error occurring.

This lesson covers;

• Using the On Error GoTo statement.
• Creating an error handler.
• Ensuring the error handler only executes when necessary.
• Disabling an error handler.

You may need to set up multiple error handlers in your code. When using multiple error handlers you need to be sure that the correct handlers are triggered at the correct times.

This lesson covers;

• Creating multiple error handlers.
• Using the Resume statement.

There are different types of runtime error that can occur in your code. The Err object can be used to identify which error occurred, and then run the required code to handle it.

This lesson covers;

• Using the Number property of the Err object.
• Testing the Err object to see what error occurred and take the necessary action.

For errors that you anticipate being caused by user error, there may be better ways to handle them than creating error handlers and using the On Error statement.

Other techniques can include using some of Excel’s existing functionality, or writing different VBA that tests for these specific issues.

This lesson covers;

• Using Excel features such as Workbook Protection and Data Validation and prevent errors occurring.
• The IsNumeric function.

Message boxes are one of the most popular ways of interacting with a user. They allow you to ask a question and provide buttons to capture the user response.

This lesson covers;

• Wrapping message box text onto more than one line.
• Using a message box in statement and function form.
• Displaying different buttons on a message box.
• Capturing a user’s response for decision making in a procedure.

Input boxes are used to capture typed entries from a user. For example, asking a user which worksheet to open, or item to search for.

Input boxes can be used to capture numeric entries, dates, Boolean values and even cell references. They are however typically used to capture strings.

This lesson covers;

• The syntax of the input box.
• Using an input box to capture text and numeric entries.
• Validating data entered by the user.
• Using an input box in its function form and as a method of the application object.

Below is a list of type index numbers when using an input box in method form.

The built-in dialog boxes of Excel such as the Save As, Open File and Select Folder dialog boxes can be initiated using VBA code. These dialog boxes provide a familiar interface to a user for performing common tasks such as opening a file.

This lesson covers;

• Initiate the Save As dialog box for a user to save a file.
• Modifying the properties of a dialog box.
• Validating the user’s interaction with the dialog box.
• Capturing the information entered to save the workbook.

Using VBA you can create loops to repeat a set of actions for every workbook within a directory, or folder.

This lesson covers;

• Storing a procedure in the Personal Macro Workbook.
• Using a built-in dialog box to make it easy for a user to select a folder.
• Using the Dir function for retrieving file names.
• Looping through all the files within a specified folder.

When accessing files in a directory you may want to be more specific about what files you want to use. There is also various information you can access about the files.

This lesson covers;

• Using the Dir and Right functions to retrieve only files of a specific file type.
• Listing all the text files from a folder on a worksheet.
• Printing information about a file such as size and date last modified to a worksheet.

When opening and saving files you may need to test to see if a directory currently exists, and if not create it during the procedure.

Saving a spreadsheet as a PDF is useful when sending data to clients, or providing it for customers. This procedure completely automates the report creation process.

This lesson covers;

• Testing to see if a directory already exists.
• Creating a directory on the fly in a procedure.
• Saving each worksheet as a separate PDF to a folder.

An array is a variable that can store more than one element of data. You can think of an array as a table of related data. Arrays can store data of any type.

Using data stored in an array is faster and more efficient than using data stored in worksheet cells.

This lesson covers;

• Declaring a one-dimensional fixed array.
• Populating an array with data from the cells on a worksheet.
• Using the data stored in the array in a procedure.
• Erasing an array.

Arrays can have multiple dimensions. An array can have as many as 60 dimensions. This makes them able to store complex lists of related data.

This lesson covers;

• Declaring a two-dimensional fixed array.
• Populating and using the data from the array.

You will not always know the size of an array at the time you declare it. Fortunately you can re-dimension, or resize, an array during a procedure. You can resize an array as many times as necessary. This is known as a dynamic array.

This lessons covers;

• Declaring a dynamic array.
• Re-dimensioning an array.
• Populating a dynamic array.
• The LBound and UBound functions.
• Using Preserve when re-dimensioning an array.