Private Sub Command1_Click()
    Text3.Text = Val(Text1.Text) + Val(Text2.Text)
End Sub

1. What is This Visual Basic Code?

This is a simple Visual Basic code snippet that performs addition of two numbers. It's a basic example of event-driven programming in VB, where clicking a command button triggers the calculation.

2. How Does the Code Work?

The code consists of:

Private Sub Command1_Click()
    Text3.Text = Val(Text1.Text) + Val(Text2.Text)
End Sub

Where:

• Command1_Click() — Event handler for button click
• Text1.Text — First input number
• Text2.Text — Second input number
• Val() — Function to convert text to numeric value
• Text3.Text — Output result

Explanation: When the button is clicked, the code converts the text in Text1 and Text2 to numbers, adds them, and displays the result in Text3.

3. Importance of Simple Calculator Code

Details: This basic example demonstrates fundamental programming concepts like event handling, variable conversion, and arithmetic operations, making it an excellent starting point for beginners learning Visual Basic.

4. Using the Code

Tips: To use this code in a Visual Basic project:

1. Create a form with three textboxes (Text1, Text2, Text3)
2. Add a command button (Command1)
3. Paste this code in the button's click event handler
4. Run the project and test with various numbers

5. Frequently Asked Questions (FAQ)

Q1: Why use Val() function?
A: Val() converts text to numbers, preventing type mismatch errors when performing arithmetic operations.

Q2: Can I modify this for other operations?
A: Yes, simply change the + operator to -, *, / for subtraction, multiplication, or division.

Q3: What if I enter non-numeric values?
A: Val() will return 0 for non-numeric input, which may lead to unexpected results. Add validation for production code.

Q4: How to handle decimal numbers?
A: The code already handles decimals through Val() function which properly converts decimal strings.

Q5: Can I use this in VB.NET?
A: The syntax is similar, but VB.NET might require slight modifications due to framework differences.