public SetExpressCheckoutOperation(ExpressCheckoutApi ec, string returnURL, string cancelURL)
: base(ec)
{
RequestNVP.Method = "SetExpressCheckout";
ReturnURL = returnURL;
CancelURL = cancelURL;
}
public OperationWithPaymentRequest(ExpressCheckoutApi ec) : base(ec)
{
}
public Operation(ExpressCheckoutApi ec)
{
this.ec = ec;
requestNVP = ec.createNVP();
}