DevForce Community Forum : Push feature on Winforms

Push feature on Winforms : Hi Lawrence,To use Push in DevForce...

Mon, 14 Nov 2011 15:22:04 -700

Author: kimj
Subject: 2924
Posted: 14-Nov-2011 at 3:22pm

Hi Lawrence,

To use Push in DevForce you do have to tell the server that you want it, so that it sets up the appropriate endpoint(s) to listen on. You can do this by adding one simple setting within the ideablade.configuration section of the web.config:

This is sufficient to allow DevForce to set up the Push service with all defaults in place.

On the client side in a WinClient application you also have to provide the client-side port which will be "listening" for messages from the server. You do this in your app.config as follows (port 9012 is just used as an example):

The WPF sample shows this configuration and you can find out more here.

Push feature on Winforms : Thanks Lawrence,I'm taking...

Mon, 14 Nov 2011 08:57:36 -700

Author: sbelini
Subject: 2924
Posted: 14-Nov-2011 at 8:57am

Thanks Lawrence,

I'm taking a look at you sample and will follow up shortly.

Silvio.

Push feature on Winforms : Hi Silvio,I'm still receiving...

Mon, 14 Nov 2011 02:12:49 -700

Author: wackywhizz
Subject: 2924
Posted: 14-Nov-2011 at 2:12am

Hi Silvio,

I'm still receiving the errors. I've attached a new one I created trying to fix it by creating an all new project. Still I seem to get the same error. I've attached the project together with a screenshot of the exception I've been experiencing.

uploads/1247/PushServerClient.rar

Thanks,

Lawrence

Push feature on Winforms : Hi Lawrence,I haven't added...

Fri, 09 Sep 2011 08:58:58 -700

Author: sbelini
Subject: 2924
Posted: 09-Sep-2011 at 8:58am

Hi Lawrence,

I haven't added any additional assemblies.

I'm sending your sample back with the changes I made, so you can take a closer look. (note that I changed the connection string to match my datasource)

You can download it at uploads/892/WinFormsPush.zip

Regards,

Silvio.

Edited by sbelini - 09-Sep-2011 at 8:59am

Push feature on Winforms : Hi Silvio,I already have the...

Thu, 08 Sep 2011 19:39:43 -700

Author: wackywhizz
Subject: 2924
Posted: 08-Sep-2011 at 7:39pm

Hi Silvio,

I already have the notification service enabled and I did what you said about using the correct signature of the ServerNotifyDelegate, but I still experience the exception has been thrown error.. Is there maybe any additional assemblies that I need to add into my project?

Thanks,

Lawrence

Edited by wackywhizz - 08-Sep-2011 at 8:51pm

Push feature on Winforms : Lawrence,The issue isthat the...

Thu, 08 Sep 2011 18:59:48 -700

Author: sbelini
Subject: 2924
Posted: 08-Sep-2011 at 6:59pm

Lawrence,

The issue is that the method signature does not conform to the ServerNotifyDelegate.

You have:

[AllowRpc]

public static void NewMessage(Guid key, INotificationManager mMgr, DAL.DFModel eMgr)

but you should have instead:

[AllowRpc]

public static void NewMessage(Guid key, INotificationManager mMgr, EntityManager eMgr)

You can later create a sub-typed entity manager:

entityMgr = new DFModel(eMgr);

Also, be sure to enable the notificationService in the server (i.e. web.config file):

Regards,

Silvio.

Push feature on Winforms : Hi Lawrence,I'm taking a...

Thu, 08 Sep 2011 17:26:47 -700

Author: sbelini
Subject: 2924
Posted: 08-Sep-2011 at 5:26pm

Hi Lawrence,

I'm taking a look at your project and will follow up shortly.

Silvio.

Push feature on Winforms : Hi Silvio,I read the documents...

Wed, 07 Sep 2011 03:24:09 -700

Author: wackywhizz
Subject: 2924
Posted: 07-Sep-2011 at 3:24am

Hi Silvio,

I read the documents and also downloaded the SL sample code for the push service. I then tried to create a winform counterpart and I'm having a "Exception has been thrown by the target of an invocation" error. Can you help me with this..?

Here is my project file: http://dl.dropbox.com/u/40770720/WinFormsPush.rar

Here is a screenshot of my error: http://dl.dropbox.com/u/40770720/exception.png

Thanks,

Lawrence

Push feature on Winforms : Hi Lawrence,You could use...

Thu, 25 Aug 2011 17:21:37 -700

Author: sbelini
Subject: 2924
Posted: 25-Aug-2011 at 5:21pm

Hi Lawrence,

You could use the DomainModel project if you are simply trying to create a sample using NorthwindIB.

If you take a closer look, the push notification feature is very much alike in both SL and WPF samples.

Basically, all you need is:

1- Define a push service; (i.e. use [AllowRpc] and method signature conforming to ServerNotifyDelegate)

2- Subscribe to it; (RegisterCallback method)

3- Configure it. (in the server and client config files)

You will find detailed information about the Push notification in the DevForce Resource Center.

Silvio.

Push feature on Winforms : Hi Silvio,Can you point me to...

Thu, 25 Aug 2011 16:57:18 -700

Author: wackywhizz
Subject: 2924
Posted: 25-Aug-2011 at 4:57pm

Hi Silvio,

Can you point me to the right direction as to how do I start trying this feature out..? I have copies of both sample codes for Silverlight and WPF but I was thinking of creating a win app from scratch? Would you recommend me to use some of the existing projects from the sample code I downloaded?

Thanks,

Lawrence

Push feature on Winforms : Hi wackywhizz,Although there isn't...

Thu, 25 Aug 2011 09:42:26 -700

Author: sbelini
Subject: 2924
Posted: 25-Aug-2011 at 9:42am

Hi wackywhizz,

Although there isn't an specific Winforms sample using Push notification, the concept is the same and you should be able to implement it in a Winforms app.

Silvio.

Push feature on Winforms : I've seen samples and codes...

Thu, 25 Aug 2011 03:14:13 -700

Author: wackywhizz
Subject: 2924
Posted: 25-Aug-2011 at 3:14am

I've seen samples and codes about the PUSH feature but they're just on WPF and SL. Is it just because there are just no samples available for Winforms or is it that this PUSH feature is not available on Winforms?