I want to call some function repeatly in client's browser.
System::Timers::Timer work only on serverside how i know...
In Silverlight you can use System::Threading::Timer or System::Windows::Threading::DispatcherTimer. If your timer callback is mainly interacting with the UI, use the DispatcherTimer, otherwise use the regular Timer.
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I am relatively new to AngularJS.
A current usecase I am working on involves running a function every N seconds, as long as the user has the browser window open. This background service must not in itself interfere with the rest of the app.
What is the preferred way to do this in AngularJS?
Use $interval as mentioned by #dustyrockpyle.
Note that using a regular setInterval with AngularJS is usually not a good idea, as Angular won't automatically notice any changes made.
I am working in selenium to test the ExtJs application. My problem is, I need to ensure the page is completely rendered. I cant use selenium.waitForPageLoad. In normal Ajax application i can use "Ajax.activeRequestCount", which will give the Ajax call count. If it is '0' We can ensure the page is completly loaded. Is there any similar function available in ExtJs? Can any one pls help me on this
There is no such method in ExtJs. You can however create handlers for global Ext.Ajax events beforerequest and requestcomplete http://docs.sencha.com/ext-js/4-0/#!/api/Ext.Ajax-event-beforerequest and count active connections yourself.
Or, if the Selenium tests are to be run in modern browsers, you could try Progress Listeners (with these).
For Firefox, you could create a simple addon that would wait for async requests to complete, and ship that addon with your Selenium tests.
I am currently developing a WCF service in a windows form application. There would be a simple GUI screen with 2 buttons, "Start" and "Stop". Whenever I attempt to start the service, the UI of the application would temporary hangs until it loads finish. Is it possible to add a loading effect to it? And how can I do that.
Still pretty new in this area. Would welcome any comments!
Is there any good tutorials out there that teaches how can I enhance this issue?
I have read the MSDN blog tutorial from Rick Rainey Making asynchronous service calls from a WinForm client but it is not really that of a good tutorial.
Just to clarify, my WCF service is a publish subscribe framework and I think I do not need to be able to call the operations asynchronously. All I want to know is how do I initiate the connection asynchronously.
Is it possible to add a loading effect to it? And how can I do that.
For this you can use duplex service contract.
Also, since your application is a subscription application you might want to look into pushing data to your application from the WCF service. Here's a nice example and although it's for Silverlight I think it might be useful to you:
http://weblogs.asp.net/dwahlin/archive/2008/06/16/pushing-data-to-a-silverlight-client-with-wcf-duplex-service-part-i.aspx
I implemented the observer design pattern in my application, but my app sends to an remote server requests via http protocol that take some time to resolve.
So, naturally, I did the sending an receiving part in a separate thread.
Can you please tell me how to make an window that observes the RequestObject to modify it's state based on the state of the request?
In the debugger step by step mode the window runes the code that I want it to do, but the window never refreshes its self.
Since I don't have a sample of your code I don't know the exacts of how you are updating your UI. If you are attempting to update the UI in the seperate thread that could be your issue. This may be of some help. http://msdn.microsoft.com/en-us/magazine/cc188732.aspx
You may also consider using the Task Parellel Library to perform your asyc operations.
http://msdn.microsoft.com/en-us/library/dd997423.aspx
Please help me with this one, I'm not sure what the correct, or best approach is. Basically I have a webservice which takes a byte stream, enabling a c# winform application to upload files to the webservice.
What I need is for the winform to upload in the background one file at a time (using basic multithread, it tries to upload them all at once). I also need to drop in there a progress bar.
How should I do it? Any ideas? I have the feeling it should be fairly straight forward. I think the application should start a new thread for the first file, wait until it's finished then dispose of the thread, create a new one for the next file and so on.
It completely depends on the technology you are using on the client side to access the web service.
If that technology allows for customization of the client proxy to the point where you can intercept transmission of messages (WCF allows this, I can't recall how much the old web services reference does), then you should be able to add your hook to see when the bytes are processed/sent.
Based on bookstorecowboy's comment about using the old "web reference" functionality in .NET, I believe that it generated proxies that derive from the SoapHttpClientProtocol class.
This being the case, I would recommend creating a custom class that derives from the SoapHttpClientProtocol class, overriding the GetWriterForMessage method. In this, you are supposed to return an XmlWriter given the Stream that is passed as a property on the SoapClientMessage parameter.
You would also create a custom class that derives from Stream which takes a Stream instance and forwards all the calls to that instance.
The only difference is that in the Write methods, you would fire an event indicating how many bytes were written.
You would then get the Stream that is exposed on the SoapClientMessage passed to the GetWriterForMessage and wrap it in your custom Stream implementation. You would also connect your event handlers here as well.
With that stream, you would create the XmlWriter and return it.
Then, for your proxies, you would use this new class that derives from SoapHttpClientProtocol and have the proxies derive from that.
As for ASP.NET 2.0 web services ("Old web services ") you could add web services extension to alter and extend it's behavior .
You could also add custom Http module .
It allows you aceess up to the stream level .
see Soap Extensions,Http Modules