private void button2_Click(object sender, EventArgs e) { if (!string.IsNullOrEmpty(textBox2.Text)) { Session.GetClientes().UsePIMCoin = true; BlockPIM block = new BlockPIM(Session.GetClientes().IdUsuario, textBox2.Text); blockDB.newKey(block.IdCliente, block.Key); clienteDB.updateUsePIMCoin(block.IdCliente); PagoConfirmForm payment = new PagoConfirmForm(); this.Hide(); payment.Show(); } else { MessageBox.Show("Adicione sua chave PIMcoin publica"); } }