public void AddInvoice()
{
newInvoice = new Invoice();
CompaniesForm form = new CompaniesForm(newInvoice);
form.FormClosed += ClosedDashBoard;
form.ShowDialog();
}
private void ShowCompaniesButton_Click(object sender, EventArgs e)
{
CompaniesForm form = new CompaniesForm();
form.ShowDialog();
}
