private void OnfunctionFormClosed(object sender, FormClosedEventArgs e)
{
AddFunctionform.Dispose();
AddFunctionform = null;
UpdateFunctionList();
// Update current form
}
/// <summary>
/// Add & delete functions related
/// </summary>
private void btn_addfunction_Click(object sender, EventArgs e)
{
AddFunctionform = new PCCDAddFunction(listOfFunctions);
AddFunctionform.FormClosed += OnfunctionFormClosed;
AddFunctionform.Show();
}