Optional arguments consuming WCF service.

Windows Communication Foundation (Indigo)

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    - Drawing a Bottom Border Can you be a bit more specific Where do you want the border, what object do you want it around Is this a Grid or something Thanks Neil Tag: Windows Communication Foundation (Indigo) Optional arguments consuming WCF service. Visual Studio 2008
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    - BinarySecurityToken header Hi I would look in the OperationContext.ServiceSecurityContext.AuthorizationContext.ClaimSets and then look for ClaimTypes.ThumbPrint what are you trying todo here validate the cert , there are lots of knobs you can turn on here, like a setting up a custom x509CertificateValidator or use the ServiceAuthorizationManager which would check the ClaimSet mentioned... /Allan Tag: Windows Communication Foundation (Indigo) Optional arguments consuming WCF service. Visual Studio 2008
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    - General Question: Help in WPF applications I too would like to know how help should be handled in avalon. Tag: Windows Communication Foundation (Indigo) Optional arguments consuming WCF service. Visual Studio 2008
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    - Working with Subscribe-Publish The IDesign Demo offers as persistent subscriber as well, if you downloaded the demo off of the idesidn site it should have came with it, including SQL scripts. Here's a link which may help: http://msdn.microsoft.com/msdnmag/issues/06/10/wcfessentials/default.aspx Mike Tag: Windows Communication Foundation (Indigo) Optional arguments consuming WCF service. Visual Studio 2008
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    - WPF and Shader Dear Cochondinde, Check out these links: http://msdn2.microsoft.com/en-us/library/system.windows.media.rendercapability.aspx http://msdn2.microsoft.com/en-us/library/ms742196.aspx http://blogs.msdn.com/wpfsdk/archive/2007/01/15/maximizing-wpf-3d-performance-on-tier-2-hardware.aspx HTH, Suprotim Agarwal Tag: Windows Communication Foundation (Indigo) Optional arguments consuming WCF service. Visual Studio 2008
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    - sample service doesn't work on Windows XP 64 I am in the middle of building one 64bit repro machine for this issue. could you provide more information on which sample test did you try, and how I can repro it please Tag: Windows Communication Foundation (Indigo) Optional arguments consuming WCF service. Visual Studio 2008
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    - The LINQ Project nice danice da Tag: Windows Communication Foundation (Indigo) Optional arguments consuming WCF service. Visual Studio 2008
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    - How to "step into Stored Procedure" to my SQL 2005 Database on my Windows 2003 Server Windows Authentication might be the problem itself. Is the Server NT Login in Active Directory and has permissions on the SQL Server Adam Tag: Windows Communication Foundation (Indigo) Optional arguments consuming WCF service. Visual Studio 2008
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    - Rendering question when using a ScaleTransform It would be best if you added Path Geometries to your container instead of drawing things using OnRender. You could create a GridShape by overriding the DefiningGeometry property and add it to your container. Tag: Windows Communication Foundation (Indigo) Optional arguments consuming WCF service. Visual Studio 2008
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    - The Security Support Provider Interface (SSPI) negotiation failed. What accounts are the client and server running under, are you specifying a network credential on the channel factory, what OSes are you using, and what do the OS event logs (not the server trace given above) say about the failure If this thread relates to the problem discussed here what does "moving the service out of LAN mean" Tag: Windows Communication Foundation (Indigo) Optional arguments consuming WCF service. Visual Studio 2008
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    - Strange data binding behaviour with nested ItemsControls obviously there is some issue, here is something that does work <DockPanel> <DockPanel.Resources> <Style x:Key="myStyle" TargetType="{x:Type TextBlock}" > <Setter Property="TextBlock.Foreground" Value="Blue"/> </Style> <DataTemplate x:Key="dt2"> <TextBlock Style="{StaticResource myStyle}" Text="{Binding}"/> </DataTemplate> <DataTemplate x:Key="dt1"> <ItemsControl ItemsSource="{Binding Path=Cities}" ItemTemplate="{StaticResource dt2}"> <ItemsControl.Template> <ControlTemplate> <DockPanel> <TextBlock DockPanel.Dock="Top" Text="{Binding Path=Name}" FontWeight="Bold"/> <ItemsPresenter/> </DockPanel> </ControlTemplate> </ItemsControl.Template> </ItemsControl> </DataTemplate> </DockPanel.Resources> <ItemsControl ItemsSource="{StaticResource countries}" ItemTemplate="{StaticResource dt1}"> <ItemsControl.ItemsPanel> <ItemsPanelTemplate> <StackPanel Orientation="Horizontal"/> </ItemsPanelTemplate> </ItemsControl.ItemsPanel> </ItemsControl> </DockPanel> Tag: Windows Communication Foundation (Indigo) Optional arguments consuming WCF service. Visual Studio 2008
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    - NavigationService.RemoveBackEntry How can you tell there are still back entries left What happens when you call GoBack() after the loop with RemoveBackEntry() Can you describe your scenario or show some code Tag: Windows Communication Foundation (Indigo) Optional arguments consuming WCF service. Visual Studio 2008
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    - WCF and CAB Hi dhiv, Are you sure you're setting up the callbacks properly for duplex communication Did you follow the guidelines here: http://msdn2.microsoft.com/en-us/library/ms731935.aspx Regarding the Eventing model itself, WCF does not currently support WS-Eventing, although there are a number of samples which demonstrate how this can be added. Here is one from our community site: http://wcf.netfx3.com/files/folders/other_snippets/entry4548.aspx If you could show us the code for setting up the callback, as well as the config, it would be very helpful. Thanks, -- Dave Tag: Windows Communication Foundation (Indigo) Optional arguments consuming WCF service. Visual Studio 2008
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    - Cannot locate resource 'window1.xaml' Can you reproduce the issue with a small test project, or does the problem only occur with this particular one I can't seem to reproduce the problem myself, but it sounds like the StartupUri in App.xaml is no longer matching up with the location of 'Window1.xaml'. Has 'Window1.xaml' moved in relation to 'App.xaml' -Mike Tag: Windows Communication Foundation (Indigo) Optional arguments consuming WCF service. Visual Studio 2008
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    - Need some pseudo code for a "simple" scenario Did you try using VisualBrush <Path Canvas.Left="100" Canvas.Top="100" Stroke="Black" StrokeThickness="1" > <Path.Data> <GeometryGroup > <EllipseGeometry RadiusX="120" RadiusY="120" Center="75,75" /> </GeometryGroup> </Path.Data> <Path.Fill> <VisualBrush Stretch="None"> <VisualBrush.Visual> <TextBlock>ellipse</TextBlock> </VisualBrush.Visual> </VisualBrush> </Path.Fill> </Path> Tag: Windows Communication Foundation (Indigo) Optional arguments consuming WCF service. Visual Studio 2008
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    - Transitioning to WPF I do not know what hardware you are running on, or how your legacy application works, but a 160x120 image at 30 FPS should not take up 30 - 40% CPU. On my 3.4ghz P4, I am able to do 30 FPS M-JPEG 704x480 @ 30 FPS at around 15 - 20% CPU. This was using the Intel JPEG library and Microsoft's M-JPEG DirectShow filter used just slightly higher CPU. Are you resusing the same buffers for decompression and rendering Reallocating a bitmap for each frame can be very heavy. In the task manager, do you see the page faults going nuts In WPF, you are seeing a major peformance loss because of this: 1.) (Speculating)Allocate new memory to hold the JPEG, you should see some (not alot) performance increase by reusing the same byte array for each JPEG. 2.) Allocate new memory for a new bitmap and decompress the jpeg 3.) Set the new bitmap source in the image 4.) Let the garbage collector clean up the old image 5.) Repeat #2, #3, #4 are your problem areas. The bad news is WPF is a totally retained UI framework, meaning you don't really have access to much low level stuff to do any custom hi-performance stuff. A lot of us are crossing our fingers that this will be addressed in the future. In the mean time, there a couple work-arounds I threw together. If you have a DirectShow solution (some sort of MJPEG source filter that maybe reads from an Axis webcam), there is this: http://jmorrill.hjtcentral.com/Home/tabid/428/EntryID/15/Default.aspx Or, what might be a more simple solution for you, is this hack that lets you get access to the pointer of a BitmapSource's pixels. With this, I suggest getting the pointer to the BitmapSource's pixels buffer. Have your JPEG decoder library decompress to the BitmapSource's pixel buffer. I have been able to get 7% CPU usage on a 30 FPS MPEG4 video using this technique: http://jmorrill.hjtcentral.com/Home/tabid/428/EntryID/16/Default.aspx I'm interested in what you are trying to do, so hit me up if you have any questions: jeremiah.morrill [at] gmail.com -Jer Tag: Windows Communication Foundation (Indigo) Optional arguments consuming WCF service. Visual Studio 2008
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    - Empty <wsdl:types> IMO, you should first learn about the possible issues when trying to migrate from an 'old Web Service' (I guess you mean ASMX) to WCF. Nice article with links to more: http://weblogs.manas.com.ar/waj/2007/05/31/asmx-to-wcf-migration/ Tag: Windows Communication Foundation (Indigo) Optional arguments consuming WCF service. Visual Studio 2008
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    - Connection Issues Hello We are experiencing some problems with connections to the server in one the applications of a customer. We have an scenario in which various clients connect to one server. As the server acknowledge clients of some operations we are using a custom dualHttp binding (it compress messages). < customBinding > < binding name = " DualHttpCompressionBinding " closeTimeout = " 00:00:30 " openTimeout = " 00:00:30 " receiveTimeout = " 23:59:59 " sendTimeout = " 00:01:00 " maxConnections = " 100 " > < reliableSession inactivityTimeout = " 00:10:00 " maxPendingChannels = " 128 " maxTransferWindowSize = " 40 " ordered = " false " /> < compositeDuplex /> < oneWay maxAcceptedChannels = " 100 " > < channelPoolSettings maxOutboundChannelsPerEndpoint = " 100 " /> </ oneWay > < gzipMessageEncoding innerMessageEncoding = " mtomMessageEncoding " /> < httpTransport useDefaultWebProxy = " false " /> </ binding > </ customBinding > As we need several clients, we have changed also the service throttling . < serviceThrottling maxConcurrentCalls = " 100 " maxConcurrentInstances = " 100 " maxConcurrentSessions = " 1000 " /> with this configuration we were able to connect only 25-30 PCs to the service. Other clients trying to reach the service throw this exception: ��This request operation sent to http://acindar69/SSMWebHost/Service.svc did not receive a reply within the configured timeout (00:01:00). The time allotted to this operation may have been a portion of a longer timeout. This may be because the service is still processing the operation or because the service was unable to send a reply message. Please consider increasing the operation timeout (by casting the channel/proxy to IContextChannel and setting the OperationTimeout property) and ensure that the service is able to connect to the client).�� To solve this, we expose the same service in 2 different endpoints and configurate some clients to connect to one of the endpoints and the others to the other endpoint. Like this, we could run around 40 clients, but keep having the same exceptions when trying to connect some more. Although We have ��solve�� the problem for some number of clients, the solution is clearly not the best. We must create a new endpoint (exposing exactly the same service) for every 25-30 clients. My impression is that there must be some configuration limiting endpoints not to accept more than 30 connections. Any clue on how can we run more clients without adding new endpoints Tag: Windows Communication Foundation (Indigo) Optional arguments consuming WCF service. Visual Studio 2008
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    - Linq to SQL Creating Databases Hi, I've tried on my system (same as your specs above: VS2008beta2, SQLExpress2005, Windows Vista). However, I don't have any users established on my server and so I'm using trusted connection instead of User ID/Password combination and couldn't reproduce your issue. Does the same thing occur when you use trusted connection Try using this connectionString: Data Source=.\\SQLEXPRESS;Persist Security Info=true;Connect Timeout=30;User Instance=false;Trusted_Connection=sspi"); Thanks, Kathy Tag: Windows Communication Foundation (Indigo) Optional arguments consuming WCF service. Visual Studio 2008
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    - Help, just installed Beta 2, nothing compiles Also I want to note that during install when prompted which "features" to install I have it setup as follows: Web Development [ ] Visual Web Developer Windows Development [ ] Visual Basic [x] Visual C++ [ ] Visual C# Surely this isn't causing problems The only features I am interested in at this time are C++ Tag: Windows Communication Foundation (Indigo) Optional arguments consuming WCF service. Visual Studio 2008
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    - DependencyProperty DataBinding and Thread It seems like you need better separation of your ObservableCollection data and your UI, and that you are doing something within ObservableCollection logic (the data domain) that is holding up the UI thread. Probably the better approach is that your ListView should use a DataTemplate, which in turn references your Path and Image properties as bound values from the ObservableCollection. Tag: Windows Communication Foundation (Indigo) Optional arguments consuming WCF service. Visual Studio 2008
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    - How to get, change, and save values from an entitiy using Entity Framework and LINQ? Hi all, for a project I have, my team decided to try working with Entity Framework and use LINQ to query the entities. To make my question more visible, I've also embedded a simplified code of our project which you can see below. We're using 3-Layer architecure (Presentation, Business, Data). The Main class below represented the Presentation Layer, and both getParticipant(...) and saveParticipant(...) methods are to be placed in the data layer. What I want to do here is : 1. Create a participant object in the presentation layer (Main class), using incomplete information (here in the sample the Participant_ID). 2. Get the rest of the information using a LINQ query in getParticipant(...) method, and save it to the created object. 3. Change the information of the entity and save it using saveParticipant(...) method As you can see, the context to the entity framework is only available in get and saveParticipant(...) methods of the data layer, this is intentional for security reasons. The problem arise when I call the saveParticipant(participant) method, practically forwarding the participant object to the "data layer". I don't know which method from the entity framework to call to incorporate the changes to the entities. I tried using "context.Attach(iParticipant);" to attach the input to the context, but then we get this error "Message="Entity can not be attached to multiple change trackers." eventhough I've detached them 1st in the getParticipant(...) method. I tried just using the context.AddToParticipant(iParticipant) method, but it failed by giving out "The entity cannot be added to the ObjectStateManager because it already has an EntityKey attached to it.", which is understandable I think the participant object have all the information needed for the entity framework to work with. any suggestion is very appreciated :-) Thanks in Advance, b4st -------------------------------------------------------------------------------- using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace test { class Program { static void Main(string[] args) { EntityFrameworkModel.Participant participant = new EntityFrameworkModel.Participant(); participant.Participant_Id = 1; participant = getParticipant(participant); participant.First_Name = "Pete"; saveParticipant(participant); } public static EntityFrameworkModel.Participant getParticipant(EntityFrameworkModel.Participant iParticipant) { using (EntityFrameworkModel.Entities context = new EntityFrameworkModel.Entities()) { var firstParticipant = (from fp in context.Participant where fp.Participant_Id == iParticipant.Participant_Id select fp); context.Detach(firstParticipant.First<EntityFrameworkModel.Participant>()); return firstParticipant.First<EntityFrameworkModel.Participant>(); } } public static void saveParticipant(EntityFrameworkModel.Participant iParticipant) { using (EntityFrameworkModel.Entities context = new EntityFrameworkModel.Entities()) { //... context.SaveChanges(); } } } } ---------------------------------------- Tag: Windows Communication Foundation (Indigo) Optional arguments consuming WCF service. Visual Studio 2008
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    - ItemsPanelTemplate in custom control First you must derive your Control from ItemsControl or one of its descendent. If you want your items to be selectable, you��d better derive from Selector or one of its descendent, such as ListBox. Then in XAML, you must create a Panel and set its IsItemsHost property to true: <StackPanel IsItemsHost="True" /> You can use any kind of Panels. But make sure you don��t add anything in this Panel. It must be empty. Also make sure your users won��t override your template and remove this Panel�� Well, if you don��t need to provide any functionality other then changing the look and items layout from ListBox, I suggest you create a ControlTemplate rather than create a custom control. Tag: Windows Communication Foundation (Indigo) Optional arguments consuming WCF service. Visual Studio 2008
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    - ClipToBounds property on Ellipse, Rectangle and Path Anyone got any ideas on this one Thanks Anthony Tag: Windows Communication Foundation (Indigo) Optional arguments consuming WCF service. Visual Studio 2008
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    - Access a CollectionViewSource in another XAML file?? why not store at the application level Tag: Windows Communication Foundation (Indigo) Optional arguments consuming WCF service. Visual Studio 2008
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    - Checking for a named pipe endpoint without throwing EndpointNotFoundException Hi, I surpose you could use WMI to try query a running instance ! but check our IDesign's InProcFactory (search for it on the site) which does exactly what you want with NetNamePipeBinding, support for singleton (they us a static dictonary btw) etc.. hth Allan Tag: Windows Communication Foundation (Indigo) Optional arguments consuming WCF service. Visual Studio 2008
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    - 2d Mouse Coordinates to 3d Hi, You need to check Daniel Lehebauer's blog. He got some helper classes for this kind of math. http://blogs.msdn.com/danlehen/default.aspx HTH, Laurent Tag: Windows Communication Foundation (Indigo) Optional arguments consuming WCF service. Visual Studio 2008
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    - How to bind Background to RadialGradientBrush.Color? The Background property takes a Brush. So just bind your RadialGradientBrush to the Background property directly. Tag: Windows Communication Foundation (Indigo) Optional arguments consuming WCF service. Visual Studio 2008
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    - MenuItem.Command - multiple binding Excuse me, can you paste some code Tag: Windows Communication Foundation (Indigo) Optional arguments consuming WCF service. Visual Studio 2008
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    - Save an ImageSource/BitmapSource/BitmapImage to file Take a look at the JpegBitmapEncoder class as an example of how to save a Bitmap to a jpeg. There are other encoders as well, such as PNG. Tag: Windows Communication Foundation (Indigo) Optional arguments consuming WCF service. Visual Studio 2008
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    - Frame Control/Window AllowsTransparency? Ah....perhaps I should try searching first... http://forums.microsoft.com/MSDN/ShowPost.aspx PostID=534864&SiteID=1 Still quite annoying....anyone know of a workaround Tag: Windows Communication Foundation (Indigo) Optional arguments consuming WCF service. Visual Studio 2008
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    - g.i.cs-Files in WPF-Projects in Visual Studio 2008 Maybe an additional information. The g.i.cs-Files are only visible in the Solution Explorer, select "Show all Files" and browse to the obj\Debug-Folder. You won't see the g.i.cs-Files in FileSystem, cause it seems that they are generated and then deleted. Thomas Tag: Windows Communication Foundation (Indigo) Optional arguments consuming WCF service. Visual Studio 2008

Craig Main

Hi,

I am using basicHttpBinding to create a WCF service that is being consumed from a Studio 2005 web service reference.

All the scalar arguments to the method calls are accompanied by a bunch of horrible IsSpecified boolean arguments. If I wanted such a cludgy interface I would have added the booleans myself

How do I specify that these arguments are in fact not optional

The client code looks terrible. I wish to make the service nicely backward compatible. I have tried adding [WebMethod] attributes as it was suggested that it would help, but alas, it does not.

Thanks

Regards

Craig

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Re: Windows Communication Foundation (Indigo) Optional arguments consuming WCF service.

Nathan Anderson - MSFT

Here's a blog post on this behavior:

http://blogs.msdn.com/eugeneos/archive/2007/02/05/solving-the-disappearing-data-issue-when-using-add-web-reference-or-wsdl-exe-with-wcf-services.aspx

The short answer is to use IsRequired=true in your DataContract:

Code Snippet

[DataContract]

public class Route

{

[DataMember(IsRequired=true)]

public int zipCodeFrom;

[DataMember(IsRequired=true)]

public int zipCodeTo;

}

Hope this helps.

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