Flex :: .NET Webservice In MVC - Access (controller)?
Jun 22, 2010
I am working on a flex application which makes calls to an .NET webservice. I am trying to follow the MVC design pattern. I have created a model, which stores all information received from the webservice. The webservice itself is created by actionscript in the controller. The view in my case, consists of various user-defined components (multiple .mxml files).
The Model is a singleton class, and each of the views accesses a getInstance of the model. The question is how do i access the webservice (i.e. controller) from each of these components? Does the controller also need to be a singleton class just like the model? and let each component get an instance of the controller in order to access the webservice?
I am using flex/actionscript. i have created a webservice with following path [url]... When i run the above url its works fine. but when i use it using httpservice and send method it is giving me error. event[code]...
I have created webapplication in which I am getting the error:-
ypeError: Error #1009: Cannot access a property or method of a null object reference. at FlexSBTSApp/displayString()[E:UsersUser1DocumentsFlex Builder 3FlexSBTSAppsrcFlexSBTSApp.mxml:38]
I'm working on creating a simple MCV application, in order to understand MVC better. The problem I'm having is registering event listeners. The way I see MVC is that the view dispatches events, the controller listens for these events and acts on them, either updating the model or amending the view. So in my MVC app I have a controller which during initialisation should register all the events that are dispatched by the view. This is my controller:
[Code]...
Now is this the way to do this, and why is it that my controller is not registering the event handlers?
A flex app running in a view of my .NET MVC app can load data fine from another route, but submitting data via either POST or GET never invokes the controller action. Interestingly, the only way I can get the action method to fire is by passing intentionally malformed post variables in the http request. Odd. Content type is application/x-www-form-urlencoded and I have set authentication to "None" in web.config with no improvement.
In Flash user can give permission to localhost and even local html file to access remote webservice.I fail to see the same thing for Silverlight which is a nightmare for testing on local pc.
I would like to implement the MVC pattern to an existing Flex project.I want to separate out the controllers and models from the views. They currently all live together in large mxml files.My question is, should httpservice requests be in the model or the controller? What sort of advantages/disadvantages would there be to either?
I am creating a flex dashboard using flash builder. I initially created a flex web based program without any server. This dashboard gets data from SAP query_view_data. And works fine. Now i wanted to host this on IIS. So i created released built. However after deploying on IIS. I receive error : "Security error accessing url.Unable to load WSDL. If currently online, please verify the URI and/or format of the WSDL ". Is this because of some crossdomain.xml. I added this to my webroot, However no luck.
I have an application in Flex how create and XML in UTF-8. When I open it everything is ok.I send it to a server using a webservice (the xml is send like a string), the server receive the xml but all the accent, degree symbol and some other stuff are gone.
I create an XML and save it in a file
var xml:XML = myObject.xml; file = new File(myObject.path); var fileStream:FileStream = new FileStream();
We have Flex applications that connect to our ASP.NET 3.5 Web Applications and usually download lot of data. Now considering XML as transport, for every item, it transmits meta data twice for example.. instead of transferring int value as <Customer CustomerID=23/> it transmits <Customer><CustomerID>23</CustomerID></Customer> .. now here is where bandwidth conservation becomes an issue.
FLEX Can not read GZip and DEFLATE compressed HTTP Response ( So cant use any of them )I heard of some WSCompression but it requires WSE 3.0 now I am skeptical to introduce too many dependency in my hosting environment which requires too much management and overheads. Is WSE 3.0 only dll library which requires no installation on production server? Does it require rewriting all WebService attribute? Or is it simple one time configuration and more or less, anyone knows does it work with Flex ? Flex dynamically generates web services, and we use lot of its auto generated code, now if we want to support compression then do we need to rewrite lot of code?
Simplest solution I can think of is, reduce unnecessary XML tags and reduce them down to attributes to save bandwidth. Is there an easy way to achieve it, our classes has more then 50-70 properties, I understand it will be nightmare to add attributes to each property but we dont know how to do it in case of SOAP.
I have My Sharepoint Web Service URL, but when i try to access it i get HTTP Request Error. My Share point Webservice has credentials in it. I have also set that in Flex.
webService.setRemoteCredentials("CITMOSSAdministrator","Pa$$w0rd"); When i trace the url, my console does read the XML, but i am unable to call the method. It throws me HTTP Request Error.
I am using a webservice deployed on SAP Web Application Server to create some charts. While migrating my FLEX application from dev to QA, I also wish to change the address of my target webservices in flex, so that they access webservices from QA. What I did was add the target server address as a URL parameter and add these URL parameters as flashvars in Flex.
var wsdlUrl= window.location.search.substring(1); flashvars.serverUrl = wsdlUrl;
Now I try to access the flashvars during declaration of the webservice
I want to declare a webservice in .mxml and pass it to a function in a separate class. The problem: callresponder's lastresult never gets updated when the call is succesfully made.[code]...
I am preparing a document for a project. The project's backend is developed in Java, frontend is adobe flex. I am not sure about the correct way of describe the project in Model-View-Controller way.
For Model layer: Using Hibernate Java beans to implement all the business logic and persistence? For View Layer: Using Adobe flex send post or get request to Controller layer, and get respond in XML format. For Controller Layer: Using Java servlet to handle requests from Flex client?
I want to be able to change the result of the operation "Call_One" to another result, since I am planning to re-use the same web service, but the result would be treated differently.
UPDATE: The problem was not to do with namespaces or flex at all. My webservice was returning the wrapped xml. I was blaming the language I had least experience with before questioning the java...I have a basic soap webservice that I am having trouble reading the result from in flex.I'm a solid java programmer and just trying to get my head around adobe flex.In the documentation I should be able to use "WebService" to return the result in e4x format.
Unfortunately, the event object seems to nested and encoded strangely. When I step trough with the debugger I see that responseXml is of type XMLList containing one element (at index 0) of type XML which just contains the following xml:
I have a Flex 3 application that makes a call to a webservice. That webservice calls returns a 2 Mb file that flex reads and parses. The problem is that it takes sometimes 45 seconds. I was wondering if there is a way to cache the response form the webservice? So the next time I load the flash movie it doesn't have to re-download the full file but just the updated data.
I am trying to call a webservice using proxy. My settings for proxy-config on blazeds side are as below:[code]Unable to load WSDL. If currently online, please verify the URI and/or format of the WSDL (null)faultString: [MessagingError message='Destination 'ws-catalog' either does not exist or the destination has no channels defined (and the application does not define any default channels.)']
I have a Flex 3 application that makes a call to a webservice. That webservice calls returns a 2 Mb file that flex reads and parses. The problem is that it takes sometimes 45 seconds. I was wondering if there is a way to cache the response form the webservice? So the next time I load the flash movie it doesn't have to re-download the full file but just the updated data.
How can I consume a webservice that hasn't explicitely created a crossdomain.xml? I understand it's for security and to prevent cross-site scripting, but it does seem like a major limitation to the Flex framework. For example, if I want to consume a webservice, which is suppose to be language agnostic, then I can't with Flex. The webservice/server has to be specifically prepared for Flex/Flash. If it's not, then it cannot be consumed.
