((better)) — Visual Basic Projects With Source Code

Beginner Use Case: A standard arithmetic calculator with a GUI.

This article provides a roadmap for leveraging existing VB projects, a treasure trove of source code, and a detailed guide to building seven essential projects that will cement your skills.

Public Class Calculator Dim currentInput As String = "" Dim firstNumber As Double = 0 Dim operation As String = "" Private Sub Number_Click(sender As Object, e As EventArgs) Handles Button1.Click, Button2.Click, '... etc Dim btn As Button = CType(sender, Button) currentInput &= btn.Text txtDisplay.Text = currentInput End Sub

' Double-click to mark as done (remove or strike-through) Private Sub lstTasks_DoubleClick(sender As Object, e As EventArgs) Handles lstTasks.DoubleClick If lstTasks.SelectedItem IsNot Nothing Then Dim doneTask As String = "[DONE] " & lstTasks.SelectedItem.ToString() Dim idx As Integer = lstTasks.SelectedIndex lstTasks.Items.RemoveAt(idx) lstTasks.Items.Insert(idx, doneTask) SaveTasks() End If End Sub visual basic projects with source code

Private Sub MakeMove(row As Integer, col As Integer, player As String) board(row, col) = player Dim btn As Button = GetButton(row, col) btn.Text = player btn.Enabled = False

Private Sub btnSave_Click(sender As Object, e As EventArgs) Handles btnSave.Click Using conn As New SqlConnection(connString) Dim query As String = "INSERT INTO Students (Name, RollNo, Grade) VALUES (@name, @roll, @grade)" Using cmd As New SqlCommand(query, conn) cmd.Parameters.AddWithValue("@name", txtName.Text) cmd.Parameters.AddWithValue("@roll", txtRollNo.Text) cmd.Parameters.AddWithValue("@grade", cmbGrade.SelectedItem.ToString)

Private Sub CalculateAverage() Dim cmd As New SQLiteCommand("SELECT AVG(Grade) FROM Students", conn) Dim avg As Object = cmd.ExecuteScalar() If avg IsNot DBNull.Value Then lblAverage.Text = "Class Average: " & Math.Round(CDbl(avg), 2) End If End Sub Beginner Use Case: A standard arithmetic calculator with

Private Sub LoadData() Dim adapter As New SQLiteDataAdapter("SELECT * FROM Students", conn) Dim table As New DataTable() adapter.Fill(table) DataGridView1.DataSource = table End Sub

Here are some visual basic project ideas that you can work on:

Happy coding, and may your builds always succeed. etc Dim btn As Button = CType(sender, Button)

Private Function CheckWin(player As String) As Boolean ' Check rows, columns, diagonals For i = 0 To 2 If board(i, 0) = player AndAlso board(i, 1) = player AndAlso board(i, 2) = player Then Return True If board(0, i) = player AndAlso board(1, i) = player AndAlso board(2, i) = player Then Return True Next If board(0, 0) = player AndAlso board(1, 1) = player AndAlso board(2, 2) = player Then Return True If board(0, 2) = player AndAlso board(1, 1) = player AndAlso board(2, 0) = player Then Return True Return False End Function

The search for is never about cheating or taking shortcuts. It is about standing on the shoulders of developers who have solved the problems you are currently facing.

Here are some visual basic projects with source code that you can use as a starting point:

Here are some additional resources that you can use to learn VB and complete projects: