Vb.net Project With Coding «Windows FAST»

Private Sub ClearFields() txtStudentID.Clear() txtName.Clear() numAge.Value = 18 txtCourse.Clear() txtName.Focus() End Sub

If numAge.Value < 1 OrElse numAge.Value > 100 Then MessageBox.Show("Age must be between 1 and 100.", "Validation Error", MessageBoxButtons.OK, MessageBoxIcon.Warning) Return False End If Vb.net Project With Coding

' Update Student Private Sub btnUpdate_Click(sender As Object, e As EventArgs) Handles btnUpdate.Click If String.IsNullOrWhiteSpace(txtStudentID.Text) Then MessageBox.Show("Please select a student to update.", "Error", MessageBoxButtons.OK, MessageBoxIcon.Warning) Return End If Private Sub ClearFields() txtStudentID

dgvStudents.DataSource = dataTable

Using conn As SqlConnection = GetConnection() Using cmd As New SqlCommand(query, conn) cmd.Parameters.AddWithValue("@Search", searchValue) Using adapter As New SqlDataAdapter(cmd) adapter.Fill(dataTable) End Using End Using End Using 1 OrElse numAge.Value &gt

If ValidateInputs() Then Dim query As String = "UPDATE Students SET Name=@Name, Age=@Age, Course=@Course WHERE StudentID=@StudentID"