I am developing an application trying to employ the Observer pattern. Basically I have a base form from which various components (forms) can be loaded. The base form references each of the components and some of the components reference each other. If I want one of the components to listen for events raised by the base form (perhaps fr...
I would like to ensure that I only subscribe once in a particular class for an event on an instance. For example I would like to be able to do the following: if (*not already subscribed*) { member.Event += new MemeberClass.Delegate(handler); } How would I go about implementing such a guard? ...
This may be a very lame question to ask but I need to be very sure. In the Red Hat Application Stack subscription details they have listed the max. number of CPUs they are going to give support to. Now my question is what exactly they are meaning from the term CPU, my choices are: 1 CPU means 1 physical unit/box/socket i.e. 1 box c...
Hi, I have an SSRS report . I tried to create a subscription ansking an email delivery of the report to my mail account. but it fails giving this error message "The email address of one or more recepients is not valid". I am having a Browser role. Could any one tell me the reason. Thanks, Anna ...
Hi, I have a report and when i tried to create a subscription for email delivery to my address, I have received a status messgae as "Failure sending mail:An error has occured during report processing". What can be the possible reasons of this message. The report works fine normally, is since it failed due to some reason the error messag...
A while back I worked with a software company that sold a specialized software product. Ever so often they would release a patch for free and a new version that would require an upgrade fee. This is typically how the software industry works. After some time the company decided on a new strategy, Subscription based software. This turn...
We're developing a new web service that will be free for low-volume users and subscription-based for higher volume users. Most users will probably invoke it via a plugin for their cms or blog system, and some will use api toolkits for various programming languages. The web service, itself, is straightforward to expose to users, but a fu...
I'm testing periodic fee subscriptions in DNN 5. I've set the renewal period on my custom role to 1 day. After 1 day, the subscription shows as EXPIRED, but the user can still view all the pages accessible to that role. Am I missing something? ...
I'm designing a site using ASP.NET and I would like the content to be subscription based. For the most part, everything will be charged to a credit card every month. I know I can store the CC in the database but is there another more secure solution to this? This isn't a giant project so I need some solution that's simple, quick, se...
I'm looking for a java-based (preferable) mailing list application that allows users to opt-in/opt-out of mailing lists. Open-source is preferable but not mandatory. This product would be used to send email notifications to subscribed people when certain events happen in another application - i.e. when a new record is saved and approv...
Assume the database has tables for Users, Feeds, Items, and an ability to know which Items the user has already seen. I am looking for a design paradigm that can be used on the server to compute in a short amount of time [feed id, num_unread] for each feed that the user has subscribed to. Assume plenty of users and that the feeds are g...
Hi there, I am having a bit of trouble subscribing to an event I have created. The event itself is in its own class and I want to be able to subscribe to it from a separate class in a separate project. I am able to subscribe to it from the class in which it is created - but when I try to subscribe from a different class in a different p...
I have a customer who is interested in selling his set of tutorial screencasts, and he very much wants to do this using wordpress. Has anyone any experience in selling subscriptions to wordpress sites, or selling digital downloads using wordpress, and is there anything I need to consider that I might have missed? I'm currently lookin...
Hi all, I am looking for a payment provider that uses an API and supports variable cost subscriptions that I can integrate into my Rails application. We are currently using the Active Merchant plugin for Rails and PayPal as our provider but their recurring billing procedure is apparently flaky. I'm thinking that there may be a provider ...
I need to determine when a user's paypal subscription is set to end/renew. I know that the easiest way to do this would be to extrapolate it from the time when the initial subscr_signup gets sent through, based on the subscription interval value, but because I'm working with some 3rd party software, it's not possible (or at least, not i...
I would like to use Amazon Payments to handle processing for my website. Along with a monthly fee, I also have an upfront cost I'd like to immediately charge the user. When I look at the documentation and examples, though, I don't see a way to do both. It seems painful to have a user "buy" twice - once for the upfront, and then once t...
The code looks like below: Clock: public class Clock { public event Func<DateTime, bool> SecondChange; public void Run() { for (var i = 0; i < 20; i++) { Thread.Sleep(1000); if (SecondChange != null) { //how do I get return value for each subscriber? ...
I have a custom datagridviewcolumn in which i've added an event. The problem is, I can't work out how to see who has subscribed to the current column object's event and add those subscriptions to the cloned column object. I get around this problem by asking the calling program to pass the address of the handler to a delegate in the cust...
Is there any nice component for Joomla 1.0.x allowing to serve custom domains? What I am trying to archieve is to sell subscription to my service and to offer custom branding including custom urls like yourcompany.myservice.com and even example.myservice.com. Any pointers? I am selling subscriptions themselves already for a long time, so...
We have a site that is serving some RSS feeds, and we'd like to know how many people is subscribed to each one, without using a system like FeedBurner to serve them. The original approach to figuring this out was basically logging requests, and then getting the number of unique IP's that had requested each feed. However, if I get 1 mill...