private async void Button1_Click_1(object sender, EventArgs e)
        {
            var customer = new Customer
            {
                Name    = txtName.Text,
                Surname = txtSurname.Text,
            };
            var card = new Card();

            context.Customers.Add(customer);
            context.Cards.Add(card);
            await context.SaveChangesAsync();

            MessageBox.Show(string.Format($"new customer succesfully added,Name:{txtName.Text} Surname:{txtSurname.Text}"));
        }
        private async void Button1_Click(object sender, EventArgs e)
        {
            newEmployee = new Employee
            {
                Name        = txtName.Text,
                Surname     = txtSurname.Text,
                Username    = txtUsername.Text,
                Password    = txtPassword.Text,
                HasVerified = rbtnHasVerified.Checked,
                PositionId  = context.Positions.FirstOrDefault(x => x.Name == comboBox1.SelectedItem.ToString()).id,
            };

            context.Employees.Add(newEmployee);
            await context.SaveChangesAsync();

            Close();
        }