Coding — Vb.net Project With

conn.Open() Dim rowsAffected As Integer = cmd.ExecuteNonQuery() conn.Close()

| Control Type | Name | Text / Purpose | |--------------|------|----------------| | Label | - | "Student Management System" (Font: bold) | | Label | - | "Student ID" | | TextBox | txtStudentID | (ReadOnly for auto-generated ID) | | Label | - | "Name" | | TextBox | txtName | | | Label | - | "Age" | | NumericUpDown | numAge | Minimum=1, Maximum=100 | | Label | - | "Course" | | TextBox | txtCourse | | | Button | btnAdd | Add Student | | Button | btnUpdate | Update | | Button | btnDelete | Delete | | Button | btnClear | Clear Fields | | TextBox | txtSearch | Search box | | Button | btnSearch | Search | | DataGridView | dgvStudents | (Dock: Bottom, Anchor: Top,Bottom,Left,Right) | Create a new module DatabaseHelper.vb : Vb.net Project With Coding

If rowsAffected > 0 Then MessageBox.Show("Student updated successfully!", "Success", MessageBoxButtons.OK, MessageBoxIcon.Information) ClearFields() LoadAllStudents() Else MessageBox.Show("Student not found.", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error) End If End Using End Using End If End Sub 0 Then MessageBox.Show("Student updated successfully!"

' Validate input fields Private Function ValidateInputs() As Boolean If String.IsNullOrWhiteSpace(txtName.Text) Then MessageBox.Show("Name is required.", "Validation Error", MessageBoxButtons.OK, MessageBoxIcon.Warning) Return False End If Vb.net Project With Coding

' Hide StudentID column if needed dgvStudents.Columns("StudentID").Visible = True dgvStudents.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.Fill End Sub

Using conn As SqlConnection = GetConnection() Using cmd As New SqlCommand(query, conn) cmd.Parameters.AddWithValue("@StudentID", Convert.ToInt32(txtStudentID.Text))