Always use StringComparison.OrdinalIgnoreCase . Without it, "Madam" will be marked as "Not a Palindrome" because of the capital 'M'. 4. Database Connectivity (ADO.NET)
Always close your connection in a Finally block. Leaving connections open will eventually crash your application during a lab viva. 5. Control Arrays and Loops vb net lab programs for bca students fix
Instead of Button1 , Button2 , use btnCalculate , btnClear , btnExit . Instead of TextBox1 , use txtInput , txtResult . This makes debugging infinitely easier. Always use StringComparison
Remember, persistence is key. Every error you encounter and fix is a lesson that builds your expertise as a developer. Good luck with your VB.NET lab assignments! Database Connectivity (ADO
Many runtime errors can be prevented by validating user input before processing it. Always check for:
This example validates empty input, ensures numeric entry, and checks for negative numbers before performing the calculation.
These programs focus on logic and syntax before moving to Windows Forms.