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• Problems connecting to WCF Service via NetNamedPipeBinding

  - by John

  I'm having trouble figuring out how to get a named pipe WCF service to work. The service is in a seperate assembly from the executable. The config looks like this: <system.serviceModel> <bindings> <netNamedPipeBinding> <binding name="NoSecurityIPC"> <security mode="None" /> </binding> </netNamedPipeBinding> </bindings> <client> <endpoint name="internal" address="channel1" binding="netNamedPipeBinding" bindingConfiguration="NoSecurityIPC" contract="conplement.TimeService.ICpTimeService" /> </client> <services> <service name="cpTimeService"> <host> <baseAddresses> <add baseAddress="net.pipe://localhost/" /> </baseAddresses> </host> <endpoint address="channel1" binding="netNamedPipeBinding" bindingConfiguration="NoSecurityIPC" contract="conplement.TimeService.ICpTimeService" /> </service> </services> </system.serviceModel> I'm using a ChannelFactory to create a proxy to access the service host: ServiceHost h = new ServiceHost(typeof(TimeService), new Uri("net.pipe://localhost/")); h.AddServiceEndpoint(typeof(ITimeService), new NetNamedPipeBinding("NoSecurityIPC"), "net.pipe://localhost/"); h.Open(); ChannelFactory<ITimeService> factory = new ChannelFactory<ITimeService>("channel1", new EndpointAddress(new Uri("net.pipe://localhost/"))); ICpTimeService proxy = factory.CreateChannel(); using (proxy as IDisposable) { this.ds = proxy.LoadData(); } I'm not sure what I'm doing wrong when I create the ChannelFactory. It can't seem to find the "channel1" in the config. When I create my binding manually and pass it to the ChannelFactory constructor, the factory and the proxy are created but the call to the LoadData() fails (times out). Can anyone see what I'm doing wrong here?

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• oauth_verifier is not passed using DotNetOpenAuth's Webconsumer

  - by BozoJoe

  I receive back a good oauth_verifier value from the server, but it is not being passed on via the ProcessUserAuthorization call to the access_token endpoint. I'm using DotNetOpenAuth 3.3.1, and the WebConsumer implementation. The server I'm working with is using OAuth 1.0a not 1.0.1. Do I need to force DotNetOpenAuth to use 1.0a? 2010-01-16 13:19:44,343 [5] DEBUG DotNetOpenAuth.Messaging.Channel [(null)] <(null)> - After binding element processing, the received UserAuthorizationResponse (1.0.1) message is: oauth_verifier: dEz9lE9AA1gcdr6oCbmD oauth_token: vauHNVOCITlbGCuqycWn 2010-01-16 13:19:44,346 [5] DEBUG DotNetOpenAuth.Messaging.Channel [(null)] <(null)> - Preparing to send AuthorizedTokenRequest (1.0) message. 2010-01-16 13:19:44,346 [5] DEBUG DotNetOpenAuth.Messaging.Bindings [(null)] <(null)> - Binding element DotNetOpenAuth.OAuth.ChannelElements.OAuthHttpMethodBindingElement applied to message. 2010-01-16 13:19:44,346 [5] DEBUG DotNetOpenAuth.Messaging.Bindings [(null)] <(null)> - Binding element DotNetOpenAuth.Messaging.Bindings.StandardReplayProtectionBindingElement applied to message. 2010-01-16 13:19:44,346 [5] DEBUG DotNetOpenAuth.Messaging.Bindings [(null)] <(null)> - Binding element DotNetOpenAuth.Messaging.Bindings.StandardExpirationBindingElement applied to message. 2010-01-16 13:19:44,346 [5] DEBUG DotNetOpenAuth.Messaging.Channel [(null)] <(null)> - Applying secrets to message to prepare for signing or signature verification. 2010-01-16 13:19:44,348 [5] DEBUG DotNetOpenAuth.Messaging.Bindings [(null)] <(null)> - Signing AuthorizedTokenRequest message using HMAC-SHA1. 2010-01-16 13:19:44,349 [5] DEBUG DotNetOpenAuth.Messaging.Bindings [(null)] <(null)> - Constructed signature base string: GET&http%3A%2F%2Fx-staging.indivo.org%3A8000%2Foauth%2Faccess_token&oauth_consumer_key%3Doak%26oauth_nonce%3DgPersiZV%26oauth_signature_method%3DHMAC-SHA1%26oauth_timestamp%3D1263676784%26oauth_token%3DvauHNVOCITlbGCuqycWn%26oauth_version%3D1.0 2010-01-16 13:19:44,349 [5] DEBUG DotNetOpenAuth.Messaging.Bindings [(null)] <(null)> - Binding element DotNetOpenAuth.OAuth.ChannelElements.SigningBindingElementChain applied to message. 2010-01-16 13:19:44,351 [5] INFO DotNetOpenAuth.Messaging.Channel [(null)] <(null)> - Prepared outgoing AuthorizedTokenRequest (1.0) message for http://x-staging.indivo.org:8000/oauth/access_token: oauth_token: vauHNVOCITlbGCuqycWn oauth_consumer_key: XXXXXXmyComsumerKeyXXXXXX oauth_nonce: gPersiZV oauth_signature_method: HMAC-SHA1 oauth_signature: xNynvr2oFlqtdoOKOl2ETiiTLGY= oauth_version: 1.0 oauth_timestamp: 1263676784 2010-01-16 13:19:44,351 [5] DEBUG DotNetOpenAuth.Messaging.Channel [(null)] <(null)> - Sending AuthorizedTokenRequest request. 2010-01-16 13:19:44,351 [5] DEBUG DotNetOpenAuth.Http [(null)] <(null)> - HTTP GET http://x-staging.indivo.org:8000/oauth/access_token 2010-01-16 13:20:34,657 [5] ERROR DotNetOpenAuth.Http [(null)] <(null)> - WebException from http://x-staging.indivo.org:8000/oauth/access_token: <h4>Internal Server Error</h4> A pastebin link to the log4net log

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• Silverlight Update/Trigger IValueConverter in Listbox DataTemplate in a DataGrid

  - by LJ

  Hi I am building an application to display a datagrid bound to an ObservableCollection of Records, where each record has a Course Object and an ObservableCollection of Results Objects. The course is changed using an autocomplete box. The results collection is displayed in a Listbox with an IValueConverter implementation to change the colour of the ellipse template based on criteria of the course currently selected. It works great on loading, but subsequent updates to the course selection via the autocomplete does not trigger a recalculation/refresh of the value converter. Is there a way to trigger the refresh in XAML. I added UpdateSource=Property changed to the binding of the list box - but this caused a stack overflow (haha). Here is the code: <data:DataGrid x:Name="MyDatGrid"> <data:DataGrid.Columns> <data:DataGridTemplateColumn Header="Results"> <data:DataGridTemplateColumn.CellTemplate> <DataTemplate> <ListBox ItemsSource="{Binding ListOfResults}"> <ListBox.ItemsPanel> <ItemsPanelTemplate> <StackPanel Orientation="Horizontal"/> </ItemsPanelTemplate> </ListBox.ItemsPanel> <ListBox.ItemTemplate> <DataTemplate> <Ellipse Width="20" Height="20" Fill="{Binding Converter={StaticResource resultToBrushConverter} }" Stroke="Black" StrokeThickness="1" /> </DataTemplate> </ListBox.ItemTemplate> </ListBox> </DataTemplate> </data:DataGridTemplateColumn.CellTemplate> </data:DataGridTemplateColumn> <data:DataGridTemplateColumn Header="Course" > <data:DataGridTemplateColumn.CellTemplate> <DataTemplate> <Border> <input:AutoCompleteBox ItemsSource="{Binding Courses, Source={StaticResource coursesSource}}"/> </Border> </DataTemplate> </data:DataGridTemplateColumn.CellTemplate> I managed to subscribe to the LostFocus Event on the autocomplete box and reset a filter that I already have on the datagrid. But isn;t this very inefficient ? Refreshing the view on the datagrid does not have any effect in that method. Any steps in the right direction are greatly appreciated. Trying to prevent myself going anymore grey :) Had thoughts of getting the binding expression of the list in the grid and updating it, but no clue ? Thanks guys

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• WCF using Spring.NET woes

  - by demius

  Hi everyone, I've torn out all but two hairs on my head trying to get my WCF services hosted in IIS 7.5. I'm using Spring.NET to create my service instances, but I'm having no luck getting it up and running. I encounter the following exception: Could not find a base address that matches scheme http for the endpoint with binding MetadataExchangeHttpBinding. Registered base address schemes are []. My WCF configuration is as follows: <system.serviceModel> <bindings> <wsHttpBinding> <binding name="secureBinding" allowCookies="false"> <security mode="Transport"> <transport clientCredentialType="None"> <extendedProtectionPolicy policyEnforcement="Never" /> </transport> </security> </binding> </wsHttpBinding> </bindings> <behaviors> <serviceBehaviors> <behavior> <serviceMetadata httpGetEnabled="true" httpsGetEnabled="true" /> <serviceDebug includeExceptionDetailInFaults="false" /> </behavior> </serviceBehaviors> </behaviors> <services> <service name="TestService"> <host> <baseAddresses> <add baseAddress="https://ws.local.com/TestService.svc"/> </baseAddresses> </host> <endpoint name="secureEndpoint" contract="Services.Interfaces.ITestService" binding="wsHttpBinding" bindingConfiguration="secureBinding" address="https://ws.local.com/TestService.svc" /> <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" /> </service> </services> <serviceHostingEnvironment multipleSiteBindingsEnabled="true" /> What am I missing here?

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• How to fix "could not find a base address that matches schema http"... in WCF

  - by Craig Shearer

  I'm trying to deploy a WCF service to my server, hosted in IIS. Naturally it works on my machine :) But when I deploy it, I get the following error: This collection already contains an address with scheme http. There can be at most one address per scheme in this collection. Googling on this, I find that I have to put a serviceHostingEnvironment element into the web.config file: <serviceHostingEnvironment> <baseAddressPrefixFilters> <add prefix="http://mywebsiteurl"/> </baseAddressPrefixFilters> </serviceHostingEnvironment> But once I have done this, I get the following: Could not find a base address that matches scheme http for the endpoint with binding BasicHttpBinding. Registered base address schemes are [https]. It seems it doesn't know what the base address is, but how do I specify it? Here's the relevant section of my web.config file: <system.serviceModel> <serviceHostingEnvironment> <baseAddressPrefixFilters> <add prefix="http://mywebsiteurl"/> </baseAddressPrefixFilters> </serviceHostingEnvironment> <behaviors> <serviceBehaviors> <behavior name="WcfPortalBehavior"> <serviceMetadata httpGetEnabled="true"/> <serviceDebug includeExceptionDetailInFaults="true"/> </behavior> </serviceBehaviors> </behaviors> <bindings> <basicHttpBinding> <binding name="BasicHttpBinding_IWcfPortal" maxBufferSize="2147483647" maxReceivedMessageSize="2147483647" receiveTimeout="00:10:00" sendTimeout="00:10:00" openTimeout="00:10:00" closeTimeout="00:10:00"> <readerQuotas maxBytesPerRead="2147483647" maxArrayLength="2147483647" maxStringContentLength="2147483647"/> </binding> </basicHttpBinding> </bindings> <services> <service behaviorConfiguration="WcfPortalBehavior" name="Csla.Server.Hosts.Silverlight.WcfPortal"> <endpoint address="" binding="basicHttpBinding" contract="Csla.Server.Hosts.Silverlight.IWcfPortal" bindingConfiguration="BasicHttpBinding_IWcfPortal"> </endpoint> <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/> </service> </services> </system.serviceModel> Can anybody shed some light on what's going on and how to fix it? Thanks! Craig

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• Certificates Validations Issues

  - by user298331

  Hi All, i am facing some issues related certificates.i need some help to resolve these issues. Requirements : security mode="TransportWithMessageCredential" binding binding name="basicHttpEndpointBinding" certificateValidationMode ="ChainTrust" revocationMode="Online" Certificates : Service Cerificates : Transportlevel : XXXX.cer my cerificate name is my system DNS name and it is having root node i.e RootTrnCA.cer this is used to enable https.but am not validationg transport level certificates. Message Level : services.ca.iim (VXXXX.Cer--Act.Mac.Ca--services.ca.iim ) Client Cerificates : Transportlevel : ZZZZ.cer my cerificate name is my system DNS name and it is having root node i.e RootTrnCA.cer ignoring transport certificate errors through coading..... Message Level : client.ca.iim (VXXXX.Cer--Act.Mac.Ca--client.ca.iim ) Issues : 1) Response message is not contain Service certificate Signature in Soap header.so i am not able to validate Server certificate details in Client code. 2)if i use the transport with message credential and Chaintrust.i am getting error : The revocation function was unable to check revocation because the revocation server was offline.) so please very the below service and cleint config and correct me if i am wrong. Service config : Client config : i am attaching certificate through coading : objProxy.ChannelFactory.Credentials.ClientCertificate.SetCertificate(System.Security.Cryptography.X509Certificates. StoreLocation.LocalMachine, System.Security.Cryptography.X509Certificates. StoreName.My, X509FindType.FindBySubjectName, "client.ca.iim"); <binding name="XXXXXServiceHost.Http" closeTimeout="00:01:00" openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00" allowCookies="false" bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard" maxBufferSize="65536" maxBufferPoolSize="524288" maxReceivedMessageSize="65536" messageEncoding="Text" textEncoding="utf-8" transferMode="Buffered" useDefaultWebProxy="true"> <readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384" maxBytesPerRead="4096" maxNameTableCharCount="16384" /> <security mode="TransportWithMessageCredential"> <transport clientCredentialType="None" proxyCredentialType="None" realm="" /> <message clientCredentialType="Certificate" algorithmSuite="Default" /> </security> </binding> </basicHttpBinding> </bindings> <client> <endpoint address="https://XXXXXX/XXXServiceHost/MemberSvc.svc/soap11" binding="basicHttpBinding" bindingConfiguration="XXXServiceHost.Http" contract="ServiceReference1.IMemberIBA" name="XXXServiceHost.Http" /> </client> </system.serviceModel>Please Verify both and Help me how to resolve above two issues . Thanks Babu

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• When will the ValueConverter's Convert method be called in wpf

  - by sudarsanyes

  I have an ObservableCollection bound to a list box and a boolean property bound to a button. I then defined two converters, one that operates on the collection and the other operates on the boolean property. Whenever I modify the boolean property, the converter's Convert method is called, where as the same is not called if I modify the observable collection. What am I missing?? Snippets for your reference, xaml snipet, <Window.Resources> <local:WrapPanelWidthConverter x:Key="WrapPanelWidthConverter" /> <local:StateToColorConverter x:Key="StateToColorConverter" /> </Window.Resources> <StackPanel> <ListBox x:Name="NamesListBox" ItemsSource="{Binding Path=Names}"> <ListBox.ItemsPanel> <ItemsPanelTemplate> <WrapPanel x:Name="ItemWrapPanel" Width="500" Background="Gray"> <WrapPanel.RenderTransform> <TranslateTransform x:Name="WrapPanelTranslatation" X="0" /> </WrapPanel.RenderTransform> <WrapPanel.Triggers> <EventTrigger RoutedEvent="WrapPanel.Loaded"> <BeginStoryboard> <Storyboard> <DoubleAnimation Storyboard.TargetName="WrapPanelTranslatation" Storyboard.TargetProperty="X" To="{Binding Path=Names,Converter={StaticResource WrapPanelWidthConverter}}" From="525" Duration="0:0:2" RepeatBehavior="100" /> </Storyboard> </BeginStoryboard> </EventTrigger> </WrapPanel.Triggers> </WrapPanel> </ItemsPanelTemplate> </ListBox.ItemsPanel> <ListBox.ItemTemplate> <DataTemplate> <Grid> <Label Content="{Binding}" Width="50" Background="LightGray" /> </Grid> </DataTemplate> </ListBox.ItemTemplate> </ListBox> <Button Content="{Binding Path=State}" Background="{Binding Path=State, Converter={StaticResource StateToColorConverter}}" Width="100" Height="100" Click="Button_Click" /> </StackPanel> code behind snippet public class WrapPanelWidthConverter : IValueConverter { public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) { ObservableCollection<string> aNames = value as ObservableCollection<string>; return -(aNames.Count * 50); } public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) { throw new NotImplementedException(); } } public class StateToColorConverter : IValueConverter { public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) { bool aState = (bool)value; if (aState) return Brushes.Green; else return Brushes.Red; } public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) { throw new NotImplementedException(); } }

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• Ajax call to WCF service returns 12031 ERROR_INTERNET_CONNECTION_RESET on new endpoint

  - by cyrix86

  I have extended a WCF service with new functionality in the form of a second service contract. The service.cs now implements both contracts. I have added another endpoint to expose the new contract operations. Here is my web.config relating to the service <system.serviceModel> <bindings> <basicHttpBinding> <binding name="BasicHttpBinding" /> </basicHttpBinding> <webHttpBinding> <binding name="XmlHttpBinding"/> </webHttpBinding> </bindings> <services> <service name="MyNamespace.MyService" behaviorConfiguration="MyServiceBehavior"> <!-- Service Endpoints --> <endpoint address="xmlHttp1" behaviorConfiguration="XmlHttpBehavior" binding="webHttpBinding" bindingConfiguration="XmlHttpBinding" contract="MyNamespace.IContract1" /> <endpoint address="xmlHttp2" binding="webHttpBinding" behaviorConfiguration="XmlHttpBehavior" bindingConfiguration="XmlHttpBinding" contract="MyNamespace.IContract2" /> <endpoint address="" binding="basicHttpBinding" bindingConfiguration="BasicHttpBinding" contract="MyNamespace.IContract1" /> </service> </services> <behaviors> <serviceBehaviors> <behavior name="MyServiceBehavior"> <!-- To avoid disclosing metadata information, set the value below to false and remove the metadata endpoint above before deployment --> <serviceMetadata httpGetEnabled="true"/> <!-- To receive exception details in faults for debugging purposes, set the value below to true. Set to false before deployment to avoid disclosing exception information --> <serviceDebug includeExceptionDetailInFaults="false"/> </behavior> </serviceBehaviors> <endpointBehaviors> <behavior name="XmlHttpBehavior"> <webHttp/> </behavior> </endpointBehaviors> </behaviors> </system.serviceModel> From Javascript, calling 'http://server/wcfServiceApp/MyService.svc/xmlHttp1/Method1' still works fine. Calling 'http://server/wcfServiceApp/MyService.svc/xmlHttp2/Method2' returns the 12031 error. There must be something simple I'm not doing, any help is appreciated.

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• Why can't I get my Azure, WCF, REST, SSL project working? What am I doing wrong?

  - by Mark E

  I'm trying to get SSL, WCF and REST under Azure, but the page won't even load. Here are the steps I followed: 1) I mapped the www.mydomain.com CNAME to my azuresite.cloudapp.net 2) I procured an SSL certificate for www.mydomain.com and properly installed it at my azuresite.cloudapp.net hosted service project 3) I deployed my WCF REST service to Azure and started it. Below is my web.config configuration. The http (non-https) binding version worked correctly. My service URL, http: //www.mydomain .com/service.svc/sessions worked just fine. When I deployed the project with the web.config below, enabling SSL, https: //www.mydomain .com/service.svc/sessions does not even pull up at all. What am I doing wrong? <system.serviceModel> <services> <service name="Service"> <!-- non-https worked just fine --> <!-- <endpoint address="" binding="webHttpBinding" contract="IService" behaviorConfiguration="RestFriendly"> </endpoint> --> <!-- This does not work, what am I doing wrong? --> <endpoint address="" binding="webHttpBinding" bindingConfiguration="TransportSecurity" contract="IService" behaviorConfiguration="RestFriendly"> </endpoint> </service> </services> <behaviors> <endpointBehaviors> <behavior name="RestFriendly"> <webHttp></webHttp> </behavior> </endpointBehaviors> </behaviors> <bindings> <webHttpBinding> <binding name="TransportSecurity"> <security mode="Transport"> <transport clientCredentialType="None"/> </security> </binding> </webHttpBinding> </bindings> </system.serviceModel>

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• WPF ComboBox in Grid Issue

  - by Nathan

  I am trying to put a series of comboboxes in a grid and then I bind them to a list. For some reason unknown to me when I click the open button on the combobox nothing happens. If I move a comobobox outside the grid it opens just fine. Can someone please tell me what I am doing wrong here. It has to be something stupid because I've used comoboxes before just fine. Here is my xaml: <Grid> <Grid.RowDefinitions> <RowDefinition Height="*" /> <RowDefinition Height="*" /> </Grid.RowDefinitions> <GroupBox Header="Download Critera" Margin="70,30" Name="groupBox1" Grid.RowSpan="2"> <Grid Height="Auto" Name="grid1" Width="Auto" Margin="0" IsHitTestVisible="False"> <Grid.RowDefinitions> <RowDefinition /> <RowDefinition /> <RowDefinition /> <RowDefinition /> <RowDefinition /> <RowDefinition /> <RowDefinition /> <RowDefinition /> </Grid.RowDefinitions> <Grid.ColumnDefinitions> <ColumnDefinition Width="*" /> <ColumnDefinition Width="*" /> </Grid.ColumnDefinitions> <TextBlock Grid.Row="1" Margin="10,5,5,5" Name="textBlock1" Text="A:" Foreground="Black" VerticalAlignment="Center" FontSize="14" FontWeight="Bold" /> <TextBlock Grid.Row="2" Margin="10,5,5,5" Name="textBlock2" Text="B:" Foreground="Black" VerticalAlignment="Center" FontWeight="Bold" /> <TextBlock Grid.Row="3" Margin="10,5,5,5" Name="textBlock3" Text="C:" Foreground="Black" VerticalAlignment="Center" FontWeight="Bold" /> <TextBlock Grid.Row="4" Margin="10,5,5,5" Name="textBlock4" Foreground="Black" Text="D:" VerticalAlignment="Center" FontWeight="Bold" /> <TextBlock Grid.Row="5" Margin="10,5,5,5" Name="textBlock5" Text="E:" Foreground="Black" TextAlignment="Left" VerticalAlignment="Center" FontWeight="Bold" /> <ComboBox x:Name="cb1" Grid.Column="1" Grid.Row="1" Margin="5" MaxDropDownHeight="100" ItemsSource="{Binding Projects}"/> <ComboBox x:Name="cb2" Grid.Column="1" Grid.Row="2" Margin="5" MaxDropDownHeight="100" ItemsSource="{Binding Projects}"/> <ComboBox x:Name="cb3" Grid.Column="1" Grid.Row="3" Margin="5" MaxDropDownHeight="100" ItemsSource="{Binding Projects}"/> <ComboBox x:Name="cb4" Grid.Column="1" Grid.Row="4" Margin="5" MaxDropDownHeight="100" ItemsSource="{Binding Projects}"/> <ComboBox x:Name="cb5" Grid.Column="1" Grid.Row="5" Margin="5" MaxDropDownHeight="100" ItemsSource="{Binding Projects}"/> </Grid> </GroupBox> </Grid>

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• How to set up a wcf-structure over internet, and not on the localhost

  - by djerry

  Hey guys, I want to convert the wcf-structure i have from localhost to a service which runs over the internet. My server starts when replacing the localhost with my ip-address. But then my clients cannot connect to the server anymore. This is my server setup : static void Main(string[] args) { NetTcpBinding binding = new NetTcpBinding(SecurityMode.Message); Uri address = new Uri("net.tcp://192.168.10.26"); //_svc = new ServiceHost(typeof(MonitoringSystemService), address); _monSysService = new MonitoringSystemService(); _svc = new ServiceHost(_monSysService, address); publishMetaData(_svc, "http://192.168.10.26"); _svc.AddServiceEndpoint(typeof(IMonitoringSystemService), binding, "Monitoring Server"); _svc.Open(); } My app.config for the client looks like this : <configuration> <system.diagnostics> <sources> <source name="System.ServiceModel" switchValue="Information, ActivityTracing" propagateActivity="true"> <listeners> <add name="traceListener" type="System.Diagnostics.XmlWriterTraceListener" initializeData= "c:\log\Traces.svclog" /> </listeners> </source> </sources> </system.diagnostics> <system.serviceModel> <bindings> <netTcpBinding> <binding name="NetTcpBinding_IMonitoringSystemService" closeTimeout="00:00:10" openTimeout="00:00:10" receiveTimeout="00:10:00" sendTimeout="00:00:10" transactionFlow="false" transferMode="Buffered" transactionProtocol="OleTransactions" hostNameComparisonMode="StrongWildcard" listenBacklog="10" maxBufferPoolSize="2147483647" maxBufferSize="2147483647" maxConnections="500" maxReceivedMessageSize="2147483647"> <readerQuotas maxDepth="32" maxStringContentLength="100000" maxArrayLength="100000" maxBytesPerRead="100000" maxNameTableCharCount="100000" /> <reliableSession ordered="true" inactivityTimeout="00:10:00" enabled="false" /> <security mode="Message"> <transport clientCredentialType="Windows" protectionLevel="EncryptAndSign"> <extendedProtectionPolicy policyEnforcement="Never" /> </transport> <message clientCredentialType="Windows" /> </security> </binding> </netTcpBinding> </bindings> <client> <endpoint address="net.tcp://192.168.10.26/Monitoring%20Server" binding="netTcpBinding" bindingConfiguration="NetTcpBinding_IMonitoringSystemService" contract="IMonitoringSystemService" > <!--name="NetTcpBinding_IMonitoringSystemService"--> <identity> <userPrincipalName value="DJERRYY\djerry" /> </identity> </endpoint> </client> </system.serviceModel> </configuration>

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• WCF Service Library - make calls from Console App

  - by inutan

  Hello there, I have a WCF Service Library with netTcpBinding. Its app.config as follows: <configuration> <system.serviceModel> <bindings> <netTcpBinding> <binding name="netTcp" maxBufferPoolSize="50000000" maxReceivedMessageSize="50000000"> <readerQuotas maxDepth="500" maxStringContentLength="50000000" maxArrayLength="50000000" maxBytesPerRead="50000000" maxNameTableCharCount="50000000" /> <security mode="None"></security> </binding> </netTcpBinding> </bindings> <services> <service behaviorConfiguration="ReportingComponentLibrary.TemplateServiceBehavior" name="ReportingComponentLibrary.TemplateReportService"> <endpoint address="TemplateService" binding="netTcpBinding" bindingConfiguration="netTcp" contract="ReportingComponentLibrary.ITemplateService"></endpoint> <endpoint address="ReportService" binding="netTcpBinding" bindingConfiguration="netTcp" contract="ReportingComponentLibrary.IReportService"/> <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" ></endpoint> <host> <baseAddresses> <add baseAddress="net.tcp://localhost:8001/TemplateReportService" /> <add baseAddress ="http://localhost:8080/TemplateReportService" /> </baseAddresses> </host> </service> </services> <behaviors> <serviceBehaviors> <behavior name="ReportingComponentLibrary.TemplateServiceBehavior"> <serviceMetadata httpGetEnabled="True"/> <serviceDebug includeExceptionDetailInFaults="True" /> </behavior> </serviceBehaviors> </behaviors> </system.serviceModel> </configuration> I want to call it from a console application for testing purpose. I understand that I can call by adding Service Reference or by adding proxy using svcutil. But in both these cases, my service needs to be up and running (I used WCF Test Client) Is there any other way I can call and test service method from console application?

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• WCF service under https environment

  - by Budda

  I've created and tested WCF service, everything works fine. When I deployed to TEST environment and tried to open https://my.site/myapp/EnrollmentService.svc I've got the error message: Could not find a base address that matches scheme http for the endpoint with binding MetadataExchangeHttpBinding. Registered base address schemes are [https]. Internet showed me that I need to add some more configuration options: http://www.codeproject.com/KB/WCF/7stepsWCF.aspx I've added some settings to service web.config file. Now it looks like in the following way: <system.serviceModel> <services> <service name="McActivationApp.EnrollmentService" behaviorConfiguration="McActivationApp.EnrollmentServicBehavior"> <endpoint address="https://my.site/myapp/EnrollmentService.svc" binding="basicHttpBinding" bindingConfiguration="TransportSecurity" contract="McActivationApp.IEnrollmentService"/> <endpoint address="mex" binding="mexHttpBinding" contract="McActivationApp.IEnrollmentService" /> </service> </services> <behaviors> <serviceBehaviors> <behavior name="McActivationApp.EnrollmentServicBehavior"> <serviceMetadata httpGetEnabled="True"/> <serviceDebug includeExceptionDetailInFaults="False" /> </behavior> </serviceBehaviors> </behaviors> <bindings> <basicHttpBinding> <binding name="TransportSecurity"> <security mode="Transport"> <transport clientCredentialType="None" /> </security> </binding> </basicHttpBinding> </bindings> <serviceHostingEnvironment aspNetCompatibilityEnabled="true" /> </system.serviceModel> Actually, I've added "bindings" section and specified it for my endpoint. But this changed nothing... Please advise, what I need to do. Thanks a lot! P.S. Are there any differences in WCF service consuming from https and http resources?

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• How can I specify resources in an MVVM view model?

  - by gix

  Suppose I want to show list of objects where each object should have a name and a suitable image (for example MenuItems with Icons, or buttons with text and image). All examples and programs exposed the image in the viewmodel as a path to a PNG file and then bound the Source of an Image to that. But what if I want to use vector images (for example as a DrawingImage in a local ResourceDictionary)? Exposing the DrawingImage from the view model seems bad because I would have to store a reference to the application/window/user control/... (and it is advised to not expose such XAML objects from view models). So a better approach would be to use a string identifier in the view model and then somehow select the appropriate resource. If that identifier is the resource key this snippet looks tempting but does not work: <Image Source="{StaticResource {Binding Icon}}"/> I found two workarounds for that though they did not work for me. The first one was using a normal binding to the icon with a converter that looked up the resource in Application.Current. This does not work if the resource is stored somewhere else I think (and the situation where I initially bumped into this problem had no Application running yet since it was a Window choosing the Application to launch!). The second workaround was using a markup extension derived from StaticResourceExtension that fetched its ResourceKey from the passed binding: <Image Source="{local:BindableStaticResource {Binding Icon}"/> This one looks really neat because it could use local resources, also be used for other things. But when using it I always got an exception ("Resource named {FooIcon} could not be found.", showing the correct XAML file and position of the extension). Even an empty resource extension derived from StaticResourceExtension that just passed the resource key to the base constructor did not work and I cannot explain why. Just using StaticResourceExtension worked just fine. Any ideas how I could fix the second approach, or even better solutions? Edit I noticed that it does work when used directly like this: <Window> <Window.Resources> <DrawingImage x:Key="SomeIcon"/> </Window.Resources> <Image Source="{BindableStaticResource {Binding Icon}}"/> </Window> but fails for example in a DataTemplate. Though a normal StaticResourceExtension works on both occasions so I am puzzled what is going wrong.

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• How to use command bindings in user controls in wpf?

  - by Sam

  In MainWindow the commandbinding works fine. In UserControl1 it doesnt work. Note the datacontext is set correctly as is evidenced by the content of the button which is the result of a binding. I am not trying to bind the command in the usercontrol to a command in mainwindow or any other such trickery. I am just trying to replicate what I did in MainWindow in UserControl1. // MainWindow xaml <StackPanel> <Button Content="Click Here" Command="{Binding ClickHereCommand}" Height="25" Width="90"></Button> <local:UserControl1></local:UserControl1> </StackPanel> // MainWindow public partial class MainWindow : Window { public static RoutedCommand ClickHereCommand { get; set; } public MainWindow() { InitializeComponent(); this.DataContext = this; ClickHereCommand = new RoutedCommand(); CommandBindings.Add(new CommandBinding(ClickHereCommand, ClickHereExecuted)); } public void ClickHereExecuted(object sender, ExecutedRoutedEventArgs e) { System.Windows.MessageBox.Show("hello"); } } // UserControl1 xaml <UserControl x:Class="CommandBindingTest.UserControl1" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" mc:Ignorable="d" d:DesignHeight="300" d:DesignWidth="300" x:Name="root"> <Grid DataContext="{Binding ElementName=root}" > <Button Content="{Binding ButtonContent}" Command="{Binding ClickHereCommand}" Height="25" Width="90"></Button> </Grid> </UserControl> // UserControl1 public partial class UserControl1 : UserControl, INotifyPropertyChanged { private string _ButtonContent; public string ButtonContent { get { return _ButtonContent; } set { if (_ButtonContent != value) { _ButtonContent = value; OnPropertyChanged("ButtonContent"); } } } public static RoutedCommand ClickHereCommand { get; set; } public UserControl1() { InitializeComponent(); ClickHereCommand = new RoutedCommand(); CommandBindings.Add(new CommandBinding(ClickHereCommand, ClickHereExecuted)); ButtonContent = "Click Here"; } public void ClickHereExecuted(object sender, ExecutedRoutedEventArgs e) { System.Windows.MessageBox.Show("hello from UserControl1"); } #region INotifyPropertyChanged Members public event PropertyChangedEventHandler PropertyChanged; public void OnPropertyChanged(string name) { if (PropertyChanged != null) { PropertyChanged(this, new PropertyChangedEventArgs(name)); } } #endregion }

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• how to bind the image dynamically for datagrid in.cs

  - by prince23

  hi, this is my xaml code. <sdk:DataGrid x:Name="dgMarks" CanUserResizeColumns="False" SelectionMode="Single" AutoGenerateColumns="False" VerticalAlignment="Top" IsReadOnly="True" Margin="13,44,0,0" RowDetailsVisibilityChanged="dgMarks_RowDetailsVisibilityChanged" RowDetailsVisibilityMode="Collapsed" Height="391" HorizontalAlignment="Left" Width="965" SelectionChanged="dgMarks_SelectionChanged" VerticalScrollBarVisibility="Visible" > <sdk:DataGrid.Columns> <sdk:DataGridTemplateColumn> <sdk:DataGridTemplateColumn.CellTemplate> <DataTemplate> <Button x:Name="myButton" Click="ExpandMarks_Click"> <TextBlock Text="{Binding Level}" TextWrapping="NoWrap" ></TextBlock> <Image x:Name="imgMarks" Stretch="None"/> </Button> </DataTemplate> </sdk:DataGridTemplateColumn.CellTemplate> </sdk:DataGridTemplateColumn> <sdk:DataGridTemplateColumn Header="Name" Visibility="Collapsed"> <sdk:DataGridTemplateColumn.CellTemplate> <DataTemplate > <sdk:Label Content="{Binding Name}"/> </DataTemplate> </sdk:DataGridTemplateColumn.CellTemplate> </sdk:DataGridTemplateColumn> <sdk:DataGridTemplateColumn Header="Marks" Width="80"> <sdk:DataGridTemplateColumn.CellTemplate> <DataTemplate> <sdk:Label Content="{Binding Marks}"/> </DataTemplate> </sdk:DataGridTemplateColumn.CellTemplate> </sdk:DataGridTemplateColumn> </sdk:DataGrid.Columns> </sdk:DataGrid> from database i am getting these values name marks Level abc 23 0 xyz 67 1 yu 56 0 aa 89 1 here i am binding these values for datagrid. i have an tricky thing to be done .based on the level i should be binding image if level value is 1 then bind the image. if level value is 0 then do not bind the image for that row i know this is how we need to handle but where should i write this code in which events? Image imgLevel = (Image)templateTrendScore.FindName("imgMarks"); if (level1==1) { imgLevel .Source = new BitmapImage(new Uri("/Images/image1.JPG", UriKind.Relative)); } any help would be great thanks in advance

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• ScrollViewer in a ListBox not working. WPF.

  - by guest

  Hi, I have the following defined in my control: <local:TestListBox.ItemTemplate> <DataTemplate> <Border x:Name="eventBorder" Width="{Binding ElementName=eventsLbx, Path=ActualWidth,BorderBrush="{Binding Color}" BorderThickness="1" CornerRadius="4"> <Border.Background> <LinearGradientBrush StartPoint="0,0" EndPoint="0,1"> <GradientStop x:Name="StartGradient" Color="#FFFFFFFF" Offset="0"/> <GradientStop x:Name="EndGradient" Color="{Binding Color}" Offset="1"/> </LinearGradientBrush> </Border.Background> <Border.ToolTip> <ToolTip Content="{Binding Text}"/> </Border.ToolTip> <TextBlock TextTrimming="CharacterEllipsis" HorizontalAlignment="Center" FontSize="12" Text="{Binding Text}" /> </Border> <DataTemplate.Triggers> <Trigger Property="IsMouseOver" Value="True"> <Setter TargetName="eventBorder" Property="Background" Value="#FFE4EBF5"/> </Trigger> </DataTemplate.Triggers> --> </DataTemplate> </local:TestListBox.ItemTemplate> </local:TestListBox> </ScrollViewer.Content> </ScrollViewer> </Grid> <ControlTemplate.Triggers> <Trigger SourceName="eventsLbx" Property="HasItems" Value="False"> <Setter TargetName="eventsLbx" Property="Visibility" Value="Hidden"/> </Trigger> </ControlTemplate.Triggers> </ControlTemplate> </Setter.Value> Now if there are more items than are visible, then the scrollviewer appears properly but the user CANNOT drag the scrollviewer middle button for scrolling. The user can click on the arrows at the end of the scrollviewer to scroll but he cannot click the bar that appears on the scrollbar and drag it to actually scroll the contents. I cannot figure out why this is happening...

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• Communicate progress from local Service

  - by kpdvx

  An application I'm building uses a local Service for downloading files from the web to the phone's SD card. In this app users can browse lists of books, and read them while online. A user can also download a pdf copy of a book for offline viewing. To handle downloads I'm using a locally bound Service. I do not want this Service to run all the time, only when downloading files. So that the Service can shut itself down when its tasks are complete, I am not binding to the service, rather I'm sending an "enqueue for download" command through the Intent passed to Context.startService. Books available for download are shown in a list. A user can choose to download a book by clicking on its row in the list. On download, I need to show download progress using a ProgressBar on the actual book list row. I need to also show, on the rows, if a book is enqueued for download, or if its download has completed or failed. The books can be shown in different activities throughout the application--in search, or in the user's list of favorite books, for example. When the books are shown in different places, these are not the same objects, but they are uniquely identified by their bookId. Because I do not want to bind to the service from every Activity, my tentative plan was to use a public static final HashMap on the Service class itself to contain a mapping of bookId to download status, an enum of enqueued, downloading, cancelled, etc. Each book view, when displayed, would check this static HashMap, and if the bookId is in the map, retrieve and display its status. I don't particularly like this idea, but at the moment it's the only way I can think of to retrieve status from the Service without having to bind to it and start it. Additionally I need to retrieve download progress percent from the Service, for a given bookId, if it is the active download. Again I'd rather not bind to the service from every activity, so I'm not sure how to go about retrieving current progress from the Service. My current plan is to use some sort of singleton mediator, that the Service will push updates to, and the views can read from. But I'm not terribly happy with this idea. The reason I'd like to avoid binding to the Service from each Activity is 1.) I'm already running another Service and 2.) binding is verbose and I'd like to avoid needing to pass around a reference to the Service (but admittedly this isn't too much of a problem). Perhaps binding to the local Service isn't expensive enough to warrant this other setup? Should I not be concerned about binding to it from each Activity? Maybe this is a non-issue?

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• WIF, ADFS 2 and WCF&ndash;Part 4: Service Client (using Service Metadata)

  - by Your DisplayName here!

  See parts 1, 2 and 3 first. In this part we will finally build a client for our federated service. There are basically two ways to accomplish this. You can use the WCF built-in tooling to generate client and configuration via the service metadata (aka ‘Add Service Reference’). This requires no WIF on the client side. Another approach would be to use WIF’s WSTrustChannelFactory to manually talk to the ADFS 2 WS-Trust endpoints. This option gives you more flexibility, but is slightly more code to write. You also need WIF on the client which implies that you need to run on a WIF supported operating system – this rules out e.g. Windows XP clients. We’ll start with the metadata way. You simply create a new client project (e.g. a console app) – call ‘Add Service Reference’ and point the dialog to your service endpoint. What will happen then is, that VS will contact your service and read its metadata. Inside there is also a link to the metadata endpoint of ADFS 2. This one will be contacted next to find out which WS-Trust endpoints are available. The end result will be a client side proxy and a configuration file. Let’s first write some code to call the service and then have a closer look at the config file. var proxy = new ServiceClient(); proxy.GetClaims().ForEach(c =>     Console.WriteLine("{0}\n {1}\n  {2} ({3})\n",         c.ClaimType,         c.Value,         c.Issuer,         c.OriginalIssuer)); That’s all. The magic is happening in the configuration file. When you in inspect app.config, you can see the following general configuration hierarchy: <client /> element with service endpoint information federation binding and configuration containing ADFS 2 endpoint 1 (with binding and configuration) ADFS 2 endpoint n (with binding and configuration) (where ADFS 2 endpoint 1…n are the endpoints I talked about in part 1) You will see a number of <issuer /> elements in the binding configuration where simply the first endpoint from the ADFS 2 metadata becomes the default endpoint and all other endpoints and their configuration are commented out. You now need to find the endpoint you want to use (based on trust version, credential type and security mode) and replace that with the default endpoint. That’s it. When you call the WCF proxy, it will inspect configuration, then first contact the selected ADFS 2 endpoint to request a token. This token will then be used to authenticate against the service. In the next post I will show you the more manual approach using the WIF APIs.

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• Windows Presentation Foundation 4.5 Cookbook Review

  - by Ricardo Peres

  As promised, here’s my review of Windows Presentation Foundation 4.5 Cookbook, that Packt Publishing kindly made available to me. It is an introductory book, targeted at WPF newcomers or users with few experience, following the typical recipes or cookbook style. Like all Packt Publishing books on development, each recipe comes with sample code that is self-sufficient for understanding the concepts it tries to illustrate. It starts on chapter 1 by introducing the most important concepts, the XAML language itself, what can be declared in XAML and how to do it, what are dependency and attached properties as well as markup extensions and events, which should give readers a most required introduction to how WPF works and how to do basic stuff. It moves on to resources on chapter 2, which also makes since, since it’s such an important concept in WPF. Next, chapter 3, come the panels used for laying controls on the screen, all of the out of the box panels are described with typical use cases. Controls come next in chapter 4; the difference between elements and controls is introduced, as well as content controls, headered controls and items controls, and all standard controls are introduced. The book shows how to change the way they look by using templates. The next chapter, 5, talks about top level windows and the WPF application object: how to access startup arguments, how to set the main window, using standard dialogs and there’s even a sample on how to have a irregularly-shaped window. This is one of the most important concepts in WPF: data binding, which is the theme for the following chapter, 6. All common scenarios are introduced, the binding modes, directions, triggers, etc. It talks about the INotifyPropertyChanged interface and how to use it for notifying data binding subscribers of changes in data sources. Data templates and selectors are also covered, as are value converters and data triggers. Examples include master-detail and sorting, grouping and filtering collections and binding trees and grids. Last it covers validation rules and error templates. Chapter 7 talks about the current trend in WPF development, the Model View View-Model (MVVM) framework. This is a well known pattern for connecting things interface to actions, and it is explained competently. A typical implementation is presented which also presents the command pattern used throughout WPF. A complete application using MVVM is presented from start to finish, including typical features such as undo. Style and layout is covered on chapter 8. Why/how to use styles, applying them automatically,  using the many types of triggers to change styles automatically, using Expression Blend behaviors and templates are all covered. Next chapter, 9, is about graphics and animations programming. It explains how to create shapes, transform common UI elements, apply special effects and perform simple animations. The following chapter, 10, is about creating custom controls, either by deriving from UserControl or from an existing control or framework element class, applying custom templates for changing the way the control looks. One useful example is a custom layout panel that arranges its children along a circumference. The final chapter, 11, is about multi-threading programming and how one can integrate it with WPF. Includes how to invoke methods and properties on WPF classes from threads other than the main UI, using background tasks and timers and even using the new C# 5.0 asynchronous operations. It’s an interesting book, like I said, mostly for newcomers. It provides a competent introduction to WPF, with examples that cover the most common scenarios and also give directions to more complex ones. I recommend it to everyone wishing to learn WPF.

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• Silverlight Cream for May 13, 2010 -- #861

  - by Dave Campbell

  In this Issue: Sigurd Snørteland, Jeff Prosise, DaveDev, Joe Zhou, Chris Eargle, John Papa(-2-, -3-), and David Anson(-2-). Shoutouts: In with the links I've listed below, Sigurd Snørteland also sent a link to this app he's working on which is actually pretty cool to see: ZuneLight. The code is not yet available. He also has a no-code demo of a Silverlight Media Center Pieter Voloshyn, Luiz Thadeu, and Jhun Iti have a very nice Silverlight image editor up: Thumba From SilverlightCream.com: WP7 - Silverlight on mobile Sigurd Snørteland submitted some links for me that have been translated to English from his blog. I hope the pages come out good because he's got a lot of good stuff on there. This one has a link to a presentation he did, and 4 projects you can load up in the emulator that he's converted to the phone: weather, worldclock, coverflow, and solitaire ... pretty cool... thanks for the links Sigurd! Understanding Page Orientation in Silverlight for Windows Phone Jeff Prosise has a really nice post up on page orientation in WP7 ... what it means to your app, how to detect it, and example code for what to do then... also love a quote by Jeff: "Silverlight for Windows Phone is the hottest thing since color TV" Why you should check out Expression Blend Behaviors when using Silverlight DaveDev has a post up describing Behaviors and why we should use them, plus tons of external links to resources, blogs, videos... all good stuff... Fiddler inspector for WCF Silverlight Polling Duplex and WCF RIA Joe Zhou announces and provides a link to a new Fiddler inspector that understands the framing in Polling Duplex and also raw binary xml and binary SOAP. Windows Phone Controls v0.7 Chris Eargle reports the release of Version 0.7 of the Windows Phone Controls project on CodePlex ... this includes a Pivot Control and a Panorama Control... both very nicely done. Binding to Silverlight ComboBox and Using SelectedValue, SelectedValuePath and DisplayMemberPath John Papa responds to a user question and put up a nice post about binding to a ComboBox and then go from the selected item to some other property ... code included No More Boxes! Exploring the PathListBox (Silverlight TV #25) Silverlight TV 25 went up on Tuesday ... thought it was going to be Thursday?? anyway ... John Papa and Adam Kinney are discussing the PathListBox and looking at some cool demos thereof. Exposing SOAP, OData, and JSON Endpoints for RIA Services (Silverlight TV 26) Since today IS Thursday, we have a new Silverlight TV, number 26, and John Papa is chatting with Deepesh Mohnani of the WCF RIA Services team about exposing all sorts of endpoints... should be something in there for everybody :) Workaround for a Silverlight data binding bug affecting various scenarios - including DataGrid+ContextMenu David Anson details the rabbit-trail he and others on the team followed in response to a problem reported via Twitter where the binding on a DataGrid seemed off by a row(!) ... weird but true, validated, and SL3/4 are bug-for-bug compatible with this too! ... But David wouldn't leave us there.. he also has a workaround. Sharing the code for a simple Silverlight 4 REST-based cloud-oriented file management app for Azure and S3 David Anson had an opportunity to build an app he's wanted to build for a while and shares it with us: Blobstore -- a small, lightweight Silverlight 4 application that acts as a basic front-end for the Windows Azure Simple Data Storage and the Amazon Simple Storage Service (S3) -- and remember I said he shared the source :) Stay in the 'Light! Twitter SilverlightNews | Twitter WynApse | WynApse.com | Tagged Posts | SilverlightCream Join me @ SilverlightCream | Phoenix Silverlight User Group Technorati Tags: Silverlight    Silverlight 3    Silverlight 4    Windows Phone MIX10

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• Handling null values and missing object properties in Silverlight 4

  - by PeterTweed

  Before Silverlight 4 to bind a data object to the UI and display a message associated with either a null value or if the binding path was wrong, you would need to write a Converter.  In Silverlight 4 we find the addition of the markup extensions TargetNullValue and FallbackValue that allows us to display a value when a null value is found in the bound to property and display a value when the property being bound to is not found. This post will show you how to use both markup extensions. Steps: 1. Create a new Silverlight 4 application 2. In the body of the MainPage.xaml.cs file replace the MainPage class with the following code:     public partial class MainPage : UserControl     {         public MainPage()         {             InitializeComponent();             this.Loaded += new RoutedEventHandler(MainPage_Loaded);         }           void MainPage_Loaded(object sender, RoutedEventArgs e)         {             person p = new person() { NameValue = "Peter Tweed" };             this.DataContext = p;         }     }       public class person     {         public string NameValue { get; set; }         public string TitleValue { get; set; }     } This code defines a class called person with two properties.  A new instance of the class is created, only defining the value for one of the properties and bound to the DataContext of the page. 3.  In the MainPage.xaml file copy the following XAML into the LayoutRoot grid:         <Grid.RowDefinitions>             <RowDefinition Height="60*" />             <RowDefinition Height="28*" />             <RowDefinition Height="28*" />             <RowDefinition Height="30*" />             <RowDefinition Height="154*" />         </Grid.RowDefinitions>         <Grid.ColumnDefinitions>             <ColumnDefinition Width="86*" />             <ColumnDefinition Width="314*" />         </Grid.ColumnDefinitions>         <TextBlock Grid.Row="1" Height="23" HorizontalAlignment="Left" Margin="32,0,0,0" Name="textBlock1" Text="Name Value:" VerticalAlignment="Top" />         <TextBlock Grid.Row="2" Height="23" HorizontalAlignment="Left" Margin="32,0,0,0" Name="textBlock2" Text="Title Value:" VerticalAlignment="Top" />         <TextBlock Grid.Row="3" Height="23" HorizontalAlignment="Left" Margin="32,0,0,0" Name="textBlock3" Text="Non Existant Value:" VerticalAlignment="Top" />         <TextBlock Grid.Column="1" Grid.Row="1" Height="23" HorizontalAlignment="Left" Name="textBlock4" Text="{Binding NameValue, TargetNullValue='No Name!!!!!!!'}" VerticalAlignment="Top" Margin="6,0,0,0" />         <TextBlock Grid.Column="1" Grid.Row="2" Height="23" HorizontalAlignment="Left" Name="textBlock5" Text="{Binding TitleValue, TargetNullValue='No Title!!!!!!!'}" VerticalAlignment="Top" Margin="6,0,0,0" />         <TextBlock Grid.Column="1" Grid.Row="3" Height="23" HorizontalAlignment="Left" Margin="6,0,0,0" Name="textBlock6" Text="{Binding AgeValue, FallbackValue='No such property!'}" VerticalAlignment="Top" />    This XAML defines three textblocks – two of which use the TargetNull and one that uses the FallbackValue markup extensions.  4. Run the application and see the person name displayed as defined for the person object, the expected string displayed for the TargetNullValue when no value exists for the boudn property and the expected string displayed for the FallbackValue when the property bound to is not found on the bound object. It's that easy!

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• Programmatically disclosing a node in af:tree and af:treeTable

  - by Frank Nimphius

  A common developer requirement when working with af:tree or af:treeTable components is to programmatically disclose (expand) a specific node in the tree. If the node to disclose is not a top level node, like a location in a LocationsView -> DepartmentsView -> EmployeesView hierarchy, you need to also disclose the node's parent node hierarchy for application users to see the fully expanded tree node structure. Working on ADF Code Corner sample #101, I wrote the following code lines that show a generic option for disclosing a tree node starting from a handle to the node to disclose. The use case in ADF Coder Corner sample #101 is a drag and drop operation from a table component to a tree to relocate employees to a new department. The tree node that receives the drop is a department node contained in a location. In theory the location could be part of a country and so on to indicate the depth the tree may have. Based on this structure, the code below provides a generic solution to parse the current node parent nodes and its child nodes. The drop event provided a rowKey for the tree node that received the drop. Like in af:table, the tree row key is not of type oracle.jbo.domain.Key but an implementation of java.util.List that contains the row keys. The JUCtrlHierBinding class in the ADF Binding layer that represents the ADF tree binding at runtime provides a method named findNodeByKeyPath that allows you to get a handle to the JUCtrlHierNodeBinding instance that represents a tree node in the binding layer. CollectionModel model = (CollectionModel) your_af_tree_reference.getValue(); JUCtrlHierBinding treeBinding = (JUCtrlHierBinding ) model.getWrappedData(); JUCtrlHierNodeBinding treeDropNode = treeBinding.findNodeByKeyPath(dropRowKey); To disclose the tree node, you need to create a RowKeySet, which you do using the RowKeySetImpl class. Because the RowKeySet replaces any existing row key set in the tree, all other nodes are automatically closed. RowKeySetImpl rksImpl = new RowKeySetImpl(); //the first key to add is the node that received the drop //operation (departments).            rksImpl.add(dropRowKey);    Similar, from the tree binding, the root node can be obtained. The root node is the end of all parent node iteration and therefore important. JUCtrlHierNodeBinding rootNode = treeBinding.getRootNodeBinding(); The following code obtains a reference to the hierarchy of parent nodes until the root node is found. JUCtrlHierNodeBinding dropNodeParent = treeDropNode.getParent(); //walk up the tree to expand all parent nodes while(dropNodeParent != null && dropNodeParent != rootNode){    //add the node's keyPath (remember its a List) to the row key set    rksImpl.add(dropNodeParent.getKeyPath());      dropNodeParent = dropNodeParent.getParent(); } Next, you disclose the drop node immediate child nodes as otherwise all you see is the department node. Its not quite exactly "dinner for one", but the procedure is very similar to the one handling the parent node keys ArrayList<JUCtrlHierNodeBinding> childList = (ArrayList<JUCtrlHierNodeBinding>) treeDropNode.getChildren();                     for(JUCtrlHierNodeBinding nb : childList){   rksImpl.add(nb.getKeyPath()); } Next, the row key set is defined as the disclosed row keys on the tree so when you refresh (PPR) the tree, the new disclosed state shows tree.setDisclosedRowKeys(rksImpl); AdfFacesContext.getCurrentInstance().addPartialTarget(tree.getParent()); The refresh in my use case is on the tree parent component (a layout container), which usually shows the best effect for refreshing the tree component. 

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• Formatting made easy - Silverlight 4

  - by PeterTweed

  One of the simplest tasks in business apps is displaying different types of data to be read in the format that the user expects them.  In Silverlight versions until Silverlight 4 this has meant using a Converter to format data during binding.  This involves writing code for the formatting of the data to bind, instead of simply defining the formatting to use for the data in question where you bind the data to the control.   In Silverlight 4 we find the addition of the StringFormat markup extension that allows us to do exactly this.  Of course the nice thing is the ability to use the common formatting conventions available in C# through the String.Format function.   This post will show you how to use three of the common formatting conventions - currency, a defined number of decimal places for a number and a date format.   Steps:   1. Create a new Silverlight 4 application   2. In the body of the MainPage.xaml.cs file replace the MainPage class with the following code:       public partial class MainPage : UserControl     {         public MainPage()         {             InitializeComponent();             this.Loaded += new RoutedEventHandler(MainPage_Loaded);         }           void MainPage_Loaded(object sender, RoutedEventArgs e)         {             info i = new info() { PriceValue = new Decimal(9.2567), DoubleValue = 1.2345678, DateValue = DateTime.Now };             this.DataContext = i;         }     }         public class info     {         public decimal PriceValue { get; set; }         public double DoubleValue { get; set; }         public DateTime DateValue { get; set; }     }   This code defines a class called info with different data types for the three properties.  A new instance of the class is created and bound to the DataContext of the page.   3.  In the MainPage.xaml file copy the following XAML into the LayoutRoot grid:           <Grid.RowDefinitions>             <RowDefinition Height="60*" />             <RowDefinition Height="28*" />             <RowDefinition Height="28*" />             <RowDefinition Height="30*" />             <RowDefinition Height="154*" />         </Grid.RowDefinitions>         <Grid.ColumnDefinitions>             <ColumnDefinition Width="86*" />             <ColumnDefinition Width="314*" />         </Grid.ColumnDefinitions>         <TextBlock Grid.Row="1" Height="23" HorizontalAlignment="Left" Margin="32,0,0,0" Name="textBlock1" Text="Price Value:" VerticalAlignment="Top" />         <TextBlock Grid.Row="2" Height="23" HorizontalAlignment="Left" Margin="32,0,0,0" Name="textBlock2" Text="Decimal Value:" VerticalAlignment="Top" />         <TextBlock Grid.Row="3" Height="23" HorizontalAlignment="Left" Margin="32,0,0,0" Name="textBlock3" Text="Date Value:" VerticalAlignment="Top" />         <TextBlock Grid.Column="1" Grid.Row="1" Height="23" HorizontalAlignment="Left" Name="textBlock4" Text="{Binding PriceValue, StringFormat='C'}" VerticalAlignment="Top" Margin="6,0,0,0" />         <TextBlock Grid.Column="1" Grid.Row="2" Height="23" HorizontalAlignment="Left" Margin="6,0,0,0" Name="textBlock5" Text="{Binding DoubleValue, StringFormat='N3'}" VerticalAlignment="Top" />         <TextBlock Grid.Column="1" Grid.Row="3" Height="23" HorizontalAlignment="Left" Margin="6,0,0,0" Name="textBlock6" Text="{Binding DateValue, StringFormat='yyyy MMM dd'}" VerticalAlignment="Top" />   This XAML defines three textblocks that use the StringFormat markup extension.  The three examples use the C for currency, N3 for a number with 3 decimal places and yyy MM dd for a date that displays year 3 letter month and 2 number date.   4. Run the application and see the data displayed with the correct formatting. It's that easy!

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• JNI 'problmatic frame' causes JVM to crash

  - by HJED

  Hi I'm using JNI to access the exiv2 library (written in C++) in Java and I'm getting a weird runtime error in the JNI code. I've tried using various -Xms and -Xmx options, but that seems to have no affect. I've also tried running this code on JDK1.7.0 with the same result. # A fatal error has been detected by the Java Runtime Environment: # # SIGSEGV (0xb) at pc=0x00007ff31807757f, pid=4041, tid=140682078746368 # # JRE version: 6.0_20-b20 # Java VM: OpenJDK 64-Bit Server VM (19.0-b09 mixed mode linux-amd64 ) # Derivative: IcedTea6 1.9.2 # Distribution: Ubuntu 10.10, package 6b20-1.9.2-0ubuntu2 # Problematic frame: # V [libjvm.so+0x42757f] # # If you would like to submit a bug report, please include # instructions how to reproduce the bug and visit: # https://bugs.launchpad.net/ubuntu/+source/openjdk-6/ # --------------- T H R E A D --------------- Current thread (0x000000000190d000): JavaThread "main" [_thread_in_Java, id=4043, stack(0x00007ff319447000,0x00007ff319548000)] siginfo:si_signo=SIGSEGV: si_errno=0, si_code=1 (SEGV_MAPERR), si_addr=0x0000000000000024 Registers: ... Register to memory mapping: RAX=0x0000000000000002 0x0000000000000002 is pointing to unknown location RBX=0x000000000190db90 0x000000000190db90 is pointing to unknown location RCX=0x0000000000000000 0x0000000000000000 is pointing to unknown location RDX=0x00007ff3195463f8 0x00007ff3195463f8 is pointing into the stack for thread: 0x000000000190d000 "main" prio=10 tid=0x000000000190d000 nid=0xfcb runnable [0x0000000000000000] java.lang.Thread.State: RUNNABLE RSP=0x00007ff319546270 0x00007ff319546270 is pointing into the stack for thread: 0x000000000190d000 "main" prio=10 tid=0x000000000190d000 nid=0xfcb runnable [0x0000000000000000] java.lang.Thread.State: RUNNABLE RBP=0x00007ff319546270 0x00007ff319546270 is pointing into the stack for thread: 0x000000000190d000 "main" prio=10 tid=0x000000000190d000 nid=0xfcb runnable [0x0000000000000000] java.lang.Thread.State: RUNNABLE RSI=0x0000000000000024 0x0000000000000024 is pointing to unknown location RDI=0x00007ff3195463e0 0x00007ff3195463e0 is pointing into the stack for thread: 0x000000000190d000 "main" prio=10 tid=0x000000000190d000 nid=0xfcb runnable [0x0000000000000000] java.lang.Thread.State: RUNNABLE R8 =0x000000000190d000 "main" prio=10 tid=0x000000000190d000 nid=0xfcb runnable [0x0000000000000000] java.lang.Thread.State: RUNNABLE R9 =0x000000000190db88 0x000000000190db88 is pointing to unknown location R10=0x00007ff319546300 0x00007ff319546300 is pointing into the stack for thread: 0x000000000190d000 "main" prio=10 tid=0x000000000190d000 nid=0xfcb runnable [0x0000000000000000] java.lang.Thread.State: RUNNABLE R11=0x0000000000000002 0x0000000000000002 is pointing to unknown location R12=0x000000000190d000 "main" prio=10 tid=0x000000000190d000 nid=0xfcb runnable [0x0000000000000000] java.lang.Thread.State: RUNNABLE R13=0x00007ff319546560 0x00007ff319546560 is pointing into the stack for thread: 0x000000000190d000 "main" prio=10 tid=0x000000000190d000 nid=0xfcb runnable [0x0000000000000000] java.lang.Thread.State: RUNNABLE R14=0x00007ff3195463e0 0x00007ff3195463e0 is pointing into the stack for thread: 0x000000000190d000 "main" prio=10 tid=0x000000000190d000 nid=0xfcb runnable [0x0000000000000000] java.lang.Thread.State: RUNNABLE R15=0x0000000000000003 0x0000000000000003 is pointing to unknown location Top of Stack: (sp=0x00007ff319546270) ... Instructions: (pc=0x00007ff31807757f) 0x00007ff31807756f: e2 03 48 03 57 58 31 c9 48 8b 32 48 85 f6 74 03 0x00007ff31807757f: 48 8b 0e 48 89 0a 8b 77 68 83 c0 01 39 f0 7c d1 Stack: [0x00007ff319447000,0x00007ff319548000], sp=0x00007ff319546270, free space=1020k Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code) V [libjvm.so+0x42757f] V [libjvm.so+0x42866b] V [libjvm.so+0x4275c8] V [libjvm.so+0x4331bd] V [libjvm.so+0x44e5c7] C [libExiff2-binding.so+0x1f16] _ZN7JNIEnv_15CallVoidMethodAEP8_jobjectP10_jmethodIDPK6jvalue+0x40 C [libExiff2-binding.so+0x1b96] _Z8loadIPTCSt8auto_ptrIN5Exiv25ImageEEPKcP7JNIEnv_P8_jobject+0x2ba C [libExiff2-binding.so+0x1d3f] _Z7getVarsPKcP7JNIEnv_P8_jobject+0x176 C [libExiff2-binding.so+0x1de7] Java_photo_exiv2_Exiv2MetaDataStore_impl_1loadFromExiv+0x4b j photo.exiv2.Exiv2MetaDataStore.impl_loadFromExiv(Ljava/lang/String;Lphoto/exiv2/Exiv2MetaDataStore;)V+0 j photo.exiv2.Exiv2MetaDataStore.loadFromExiv2()V+9 j photo.exiv2.Exiv2MetaDataStore.loadData()V+1 j photo.exiv2.Exiv2MetaDataStore.<init>(Lphoto/ImageFile;)V+10 j test.Main.main([Ljava/lang/String;)V+76 v ~StubRoutines::call_stub V [libjvm.so+0x428698] V [libjvm.so+0x4275c8] V [libjvm.so+0x432943] V [libjvm.so+0x447f91] C [java+0x3495] JavaMain+0xd75 --------------- P R O C E S S --------------- Java Threads: ( => current thread ) 0x00007ff2c4027800 JavaThread "Low Memory Detector" daemon [_thread_blocked, id=4060, stack(0x00007ff2c9052000,0x00007ff2c9153000)] 0x00007ff2c4025000 JavaThread "CompilerThread1" daemon [_thread_blocked, id=4059, stack(0x00007ff2c9153000,0x00007ff2c9254000)] 0x00007ff2c4022000 JavaThread "CompilerThread0" daemon [_thread_blocked, id=4058, stack(0x00007ff2c9254000,0x00007ff2c9355000)] 0x00007ff2c401f800 JavaThread "Signal Dispatcher" daemon [_thread_blocked, id=4057, stack(0x00007ff2c9355000,0x00007ff2c9456000)] 0x00007ff2c4001000 JavaThread "Finalizer" daemon [_thread_blocked, id=4056, stack(0x00007ff2c994d000,0x00007ff2c9a4e000)] 0x0000000001984000 JavaThread "Reference Handler" daemon [_thread_blocked, id=4055, stack(0x00007ff2c9a4e000,0x00007ff2c9b4f000)] =>0x000000000190d000 JavaThread "main" [_thread_in_Java, id=4043, stack(0x00007ff319447000,0x00007ff319548000)] Other Threads: 0x000000000197d800 VMThread [stack: 0x00007ff2c9b4f000,0x00007ff2c9c50000] [id=4054] 0x00007ff2c4032000 WatcherThread [stack: 0x00007ff2c8f51000,0x00007ff2c9052000] [id=4061] VM state:not at safepoint (normal execution) VM Mutex/Monitor currently owned by a thread: None Heap PSYoungGen total 18432K, used 316K [0x00007ff2fed30000, 0x00007ff3001c0000, 0x00007ff313730000) eden space 15808K, 2% used [0x00007ff2fed30000,0x00007ff2fed7f0b8,0x00007ff2ffca0000) from space 2624K, 0% used [0x00007ff2fff30000,0x00007ff2fff30000,0x00007ff3001c0000) to space 2624K, 0% used [0x00007ff2ffca0000,0x00007ff2ffca0000,0x00007ff2fff30000) PSOldGen total 42240K, used 0K [0x00007ff2d5930000, 0x00007ff2d8270000, 0x00007ff2fed30000) object space 42240K, 0% used [0x00007ff2d5930000,0x00007ff2d5930000,0x00007ff2d8270000) PSPermGen total 21248K, used 2827K [0x00007ff2cb330000, 0x00007ff2cc7f0000, 0x00007ff2d5930000) object space 21248K, 13% used [0x00007ff2cb330000,0x00007ff2cb5f2f60,0x00007ff2cc7f0000) Dynamic libraries: 00400000-00409000 r-xp 00000000 08:03 141899 /usr/lib/jvm/java-6-openjdk/jre/bin/java 00608000-00609000 r--p 00008000 08:03 141899 /usr/lib/jvm/java-6-openjdk/jre/bin/java 00609000-0060a000 rw-p 00009000 08:03 141899 /usr/lib/jvm/java-6-openjdk/jre/bin/java 01904000-019ad000 rw-p 00000000 00:00 0 [heap] ... 7ff2c820c000-7ff2c8232000 r-xp 00000000 08:03 917704 /lib/libexpat.so.1.5.2 7ff2c8232000-7ff2c8432000 ---p 00026000 08:03 917704 /lib/libexpat.so.1.5.2 7ff2c8432000-7ff2c8434000 r--p 00026000 08:03 917704 /lib/libexpat.so.1.5.2 7ff2c8434000-7ff2c8435000 rw-p 00028000 08:03 917704 /lib/libexpat.so.1.5.2 7ff2c8435000-7ff2c844a000 r-xp 00000000 08:03 917708 /lib/libgcc_s.so.1 7ff2c844a000-7ff2c8649000 ---p 00015000 08:03 917708 /lib/libgcc_s.so.1 7ff2c8649000-7ff2c864a000 r--p 00014000 08:03 917708 /lib/libgcc_s.so.1 7ff2c864a000-7ff2c864b000 rw-p 00015000 08:03 917708 /lib/libgcc_s.so.1 7ff2c864b000-7ff2c8733000 r-xp 00000000 08:03 134995 /usr/lib/libstdc++.so.6.0.14 7ff2c8733000-7ff2c8932000 ---p 000e8000 08:03 134995 /usr/lib/libstdc++.so.6.0.14 7ff2c8932000-7ff2c893a000 r--p 000e7000 08:03 134995 /usr/lib/libstdc++.so.6.0.14 7ff2c893a000-7ff2c893c000 rw-p 000ef000 08:03 134995 /usr/lib/libstdc++.so.6.0.14 7ff2c893c000-7ff2c8951000 rw-p 00000000 00:00 0 7ff2c8951000-7ff2c8af3000 r-xp 00000000 08:03 134599 /usr/lib/libexiv2.so.6.0.0 7ff2c8af3000-7ff2c8cf2000 ---p 001a2000 08:03 134599 /usr/lib/libexiv2.so.6.0.0 7ff2c8cf2000-7ff2c8d0f000 r--p 001a1000 08:03 134599 /usr/lib/libexiv2.so.6.0.0 7ff2c8d0f000-7ff2c8d10000 rw-p 001be000 08:03 134599 /usr/lib/libexiv2.so.6.0.0 7ff2c8d10000-7ff2c8d23000 rw-p 00000000 00:00 0 7ff2c8d42000-7ff2c8d45000 r-xp 00000000 08:03 800718 /home/hjed/libExiff2-binding.so 7ff2c8d45000-7ff2c8f44000 ---p 00003000 08:03 800718 /home/hjed/libExiff2-binding.so 7ff2c8f44000-7ff2c8f45000 r--p 00002000 08:03 800718 /home/hjed/libExiff2-binding.so 7ff2c8f45000-7ff2c8f46000 rw-p 00003000 08:03 800718 /home/hjed/libExiff2-binding.so 7ff2c8f46000-7ff2c8f49000 r--s 0000f000 08:03 141333 /usr/lib/jvm/java-6-openjdk/jre/lib/ext/pulse-java.jar 7ff2c8f49000-7ff2c8f51000 r--s 00066000 08:03 408472 /usr/share/java/gnome-java-bridge.jar ... 7ff2ca559000-7ff2ca55b000 r--s 0001d000 08:03 141354 /usr/lib/jvm/java-6-openjdk/jre/lib/plugin.jar 7ff2ca55b000-7ff2ca560000 r--s 00044000 08:03 141353 /usr/lib/jvm/java-6-openjdk/jre/lib/netx.jar 7ff2ca560000-7ff2ca592000 rw-p 00000000 00:00 0 7ff2ca592000-7ff2ca720000 r--s 038af000 08:03 141833 /usr/lib/jvm/java-6-openjdk/jre/lib/rt.jar ... 7ff31673b000-7ff316742000 r-xp 00000000 08:03 141867 /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/libzip.so 7ff316742000-7ff316941000 ---p 00007000 08:03 141867 /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/libzip.so 7ff316941000-7ff316942000 r--p 00006000 08:03 141867 /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/libzip.so 7ff316942000-7ff316943000 rw-p 00007000 08:03 141867 /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/libzip.so 7ff316943000-7ff31694f000 r-xp 00000000 08:03 921396 /lib/libnss_files-2.12.1.so 7ff31694f000-7ff316b4e000 ---p 0000c000 08:03 921396 /lib/libnss_files-2.12.1.so 7ff316b4e000-7ff316b4f000 r--p 0000b000 08:03 921396 /lib/libnss_files-2.12.1.so 7ff316b4f000-7ff316b50000 rw-p 0000c000 08:03 921396 /lib/libnss_files-2.12.1.so 7ff316b50000-7ff316b5a000 r-xp 00000000 08:03 921398 /lib/libnss_nis-2.12.1.so 7ff316b5a000-7ff316d59000 ---p 0000a000 08:03 921398 /lib/libnss_nis-2.12.1.so 7ff316d59000-7ff316d5a000 r--p 00009000 08:03 921398 /lib/libnss_nis-2.12.1.so 7ff316d5a000-7ff316d5b000 rw-p 0000a000 08:03 921398 /lib/libnss_nis-2.12.1.so 7ff316d5b000-7ff316d63000 r-xp 00000000 08:03 921393 /lib/libnss_compat-2.12.1.so 7ff316d63000-7ff316f62000 ---p 00008000 08:03 921393 /lib/libnss_compat-2.12.1.so 7ff316f62000-7ff316f63000 r--p 00007000 08:03 921393 /lib/libnss_compat-2.12.1.so 7ff316f63000-7ff316f64000 rw-p 00008000 08:03 921393 /lib/libnss_compat-2.12.1.so 7ff316f64000-7ff316f6c000 r-xp 00000000 08:03 141869 /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/native_threads/libhpi.so 7ff316f6c000-7ff31716b000 ---p 00008000 08:03 141869 /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/native_threads/libhpi.so 7ff31716b000-7ff31716c000 r--p 00007000 08:03 141869 /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/native_threads/libhpi.so 7ff31716c000-7ff31716d000 rw-p 00008000 08:03 141869 /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/native_threads/libhpi.so 7ff31716d000-7ff317184000 r-xp 00000000 08:03 921392 /lib/libnsl-2.12.1.so 7ff317184000-7ff317383000 ---p 00017000 08:03 921392 /lib/libnsl-2.12.1.so 7ff317383000-7ff317384000 r--p 00016000 08:03 921392 /lib/libnsl-2.12.1.so 7ff317384000-7ff317385000 rw-p 00017000 08:03 921392 /lib/libnsl-2.12.1.so 7ff317385000-7ff317387000 rw-p 00000000 00:00 0 7ff317387000-7ff3173b2000 r-xp 00000000 08:03 141850 /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/libjava.so 7ff3173b2000-7ff3175b1000 ---p 0002b000 08:03 141850 /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/libjava.so 7ff3175b1000-7ff3175b2000 r--p 0002a000 08:03 141850 /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/libjava.so 7ff3175b2000-7ff3175b5000 rw-p 0002b000 08:03 141850 /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/libjava.so 7ff3175b5000-7ff3175c3000 r-xp 00000000 08:03 141866 /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/libverify.so 7ff3175c3000-7ff3177c2000 ---p 0000e000 08:03 141866 /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/libverify.so 7ff3177c2000-7ff3177c4000 r--p 0000d000 08:03 141866 /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/libverify.so 7ff3177c4000-7ff3177c5000 rw-p 0000f000 08:03 141866 /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/libverify.so 7ff3177c5000-7ff3177cc000 r-xp 00000000 08:03 921405 /lib/librt-2.12.1.so 7ff3177cc000-7ff3179cb000 ---p 00007000 08:03 921405 /lib/librt-2.12.1.so 7ff3179cb000-7ff3179cc000 r--p 00006000 08:03 921405 /lib/librt-2.12.1.so 7ff3179cc000-7ff3179cd000 rw-p 00007000 08:03 921405 /lib/librt-2.12.1.so 7ff3179cd000-7ff317a4f000 r-xp 00000000 08:03 921390 /lib/libm-2.12.1.so 7ff317a4f000-7ff317c4e000 ---p 00082000 08:03 921390 /lib/libm-2.12.1.so 7ff317c4e000-7ff317c4f000 r--p 00081000 08:03 921390 /lib/libm-2.12.1.so 7ff317c4f000-7ff317c50000 rw-p 00082000 08:03 921390 /lib/libm-2.12.1.so 7ff317c50000-7ff3184c4000 r-xp 00000000 08:03 141871 /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/server/libjvm.so 7ff3184c4000-7ff3186c3000 ---p 00874000 08:03 141871 /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/server/libjvm.so 7ff3186c3000-7ff318739000 r--p 00873000 08:03 141871 /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/server/libjvm.so 7ff318739000-7ff318754000 rw-p 008e9000 08:03 141871 /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/server/libjvm.so 7ff318754000-7ff31878d000 rw-p 00000000 00:00 0 7ff31878d000-7ff318907000 r-xp 00000000 08:03 921385 /lib/libc-2.12.1.so 7ff318907000-7ff318b06000 ---p 0017a000 08:03 921385 /lib/libc-2.12.1.so 7ff318b06000-7ff318b0a000 r--p 00179000 08:03 921385 /lib/libc-2.12.1.so 7ff318b0a000-7ff318b0b000 rw-p 0017d000 08:03 921385 /lib/libc-2.12.1.so 7ff318b0b000-7ff318b10000 rw-p 00000000 00:00 0 7ff318b10000-7ff318b12000 r-xp 00000000 08:03 921388 /lib/libdl-2.12.1.so 7ff318b12000-7ff318d12000 ---p 00002000 08:03 921388 /lib/libdl-2.12.1.so 7ff318d12000-7ff318d13000 r--p 00002000 08:03 921388 /lib/libdl-2.12.1.so 7ff318d13000-7ff318d14000 rw-p 00003000 08:03 921388 /lib/libdl-2.12.1.so 7ff318d14000-7ff318d18000 r-xp 00000000 08:03 141838 /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/jli/libjli.so 7ff318d18000-7ff318f17000 ---p 00004000 08:03 141838 /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/jli/libjli.so 7ff318f17000-7ff318f18000 r--p 00003000 08:03 141838 /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/jli/libjli.so 7ff318f18000-7ff318f19000 rw-p 00004000 08:03 141838 /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/jli/libjli.so 7ff318f19000-7ff318f31000 r-xp 00000000 08:03 921401 /lib/libpthread-2.12.1.so 7ff318f31000-7ff319130000 ---p 00018000 08:03 921401 /lib/libpthread-2.12.1.so 7ff319130000-7ff319131000 r--p 00017000 08:03 921401 /lib/libpthread-2.12.1.so 7ff319131000-7ff319132000 rw-p 00018000 08:03 921401 /lib/libpthread-2.12.1.so 7ff319132000-7ff319136000 rw-p 00000000 00:00 0 7ff319136000-7ff31914c000 r-xp 00000000 08:03 917772 /lib/libz.so.1.2.3.4 7ff31914c000-7ff31934c000 ---p 00016000 08:03 917772 /lib/libz.so.1.2.3.4 7ff31934c000-7ff31934d000 r--p 00016000 08:03 917772 /lib/libz.so.1.2.3.4 7ff31934d000-7ff31934e000 rw-p 00017000 08:03 917772 /lib/libz.so.1.2.3.4 7ff31934e000-7ff31936e000 r-xp 00000000 08:03 921379 /lib/ld-2.12.1.so 7ff319387000-7ff319391000 rw-p 00000000 00:00 0 7ff319391000-7ff319447000 rw-p 00000000 00:00 0 7ff319447000-7ff31944a000 ---p 00000000 00:00 0 7ff31944a000-7ff31954d000 rw-p 00000000 00:00 0 7ff319562000-7ff31956a000 rw-s 00000000 08:03 1966453 /tmp/hsperfdata_hjed/4041 7ff31956a000-7ff31956b000 rw-p 00000000 00:00 0 7ff31956b000-7ff31956c000 r--p 00000000 00:00 0 7ff31956c000-7ff31956e000 rw-p 00000000 00:00 0 7ff31956e000-7ff31956f000 r--p 00020000 08:03 921379 /lib/ld-2.12.1.so 7ff31956f000-7ff319570000 rw-p 00021000 08:03 921379 /lib/ld-2.12.1.so 7ff319570000-7ff319571000 rw-p 00000000 00:00 0 7fff0fb03000-7fff0fb24000 rw-p 00000000 00:00 0 [stack] 7fff0fbff000-7fff0fc00000 r-xp 00000000 00:00 0 [vdso] ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0 [vsyscall] VM Arguments: jvm_args: -Dfile.encoding=UTF-8 java_command: test.Main Launcher Type: SUN_STANDARD Environment Variables: PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games USERNAME=hjed LD_LIBRARY_PATH=/usr/lib/jvm/java-6-openjdk/jre/lib/amd64/server:/usr/lib/jvm/java-6-openjdk/jre/lib/amd64:/usr/lib/jvm/java-6-openjdk/jre/../lib/amd64 SHELL=/bin/bash DISPLAY=:0.0 Signal Handlers: SIGSEGV: [libjvm.so+0x712700], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004 SIGBUS: [libjvm.so+0x712700], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004 SIGFPE: [libjvm.so+0x5d4020], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004 SIGPIPE: [libjvm.so+0x5d4020], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004 SIGXFSZ: [libjvm.so+0x5d4020], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004 SIGILL: [libjvm.so+0x5d4020], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004 SIGUSR1: SIG_DFL, sa_mask[0]=0x00000000, sa_flags=0x00000000 SIGUSR2: [libjvm.so+0x5d3730], sa_mask[0]=0x00000004, sa_flags=0x10000004 SIGHUP: [libjvm.so+0x5d61a0], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004 SIGINT: SIG_IGN, sa_mask[0]=0x00000000, sa_flags=0x00000000 SIGTERM: [libjvm.so+0x5d61a0], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004 SIGQUIT: [libjvm.so+0x5d61a0], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004 --------------- S Y S T E M --------------- OS:Ubuntu 10.10 (maverick) uname:Linux 2.6.35-24-generic #42-Ubuntu SMP Thu Dec 2 02:41:37 UTC 2010 x86_64 libc:glibc 2.12.1 NPTL 2.12.1 rlimit: STACK 8192k, CORE 0k, NPROC infinity, NOFILE 1024, AS infinity load average:0.25 0.16 0.21 /proc/meminfo: MemTotal: 4048200 kB MemFree: 1230476 kB Buffers: 589572 kB Cached: 911132 kB SwapCached: 0 kB Active: 1321712 kB Inactive: 1202272 kB Active(anon): 1023852 kB Inactive(anon): 7168 kB Active(file): 297860 kB Inactive(file): 1195104 kB Unevictable: 64 kB Mlocked: 64 kB SwapTotal: 7065596 kB SwapFree: 7065596 kB Dirty: 632 kB Writeback: 0 kB AnonPages: 1023368 kB Mapped: 145832 kB Shmem: 7728 kB Slab: 111136 kB SReclaimable: 66316 kB SUnreclaim: 44820 kB KernelStack: 3824 kB PageTables: 27736 kB NFS_Unstable: 0 kB Bounce: 0 kB WritebackTmp: 0 kB CommitLimit: 9089696 kB Committed_AS: 2378396 kB VmallocTotal: 34359738367 kB VmallocUsed: 332928 kB VmallocChunk: 34359397884 kB HardwareCorrupted: 0 kB HugePages_Total: 0 HugePages_Free: 0 HugePages_Rsvd: 0 HugePages_Surp: 0 Hugepagesize: 2048 kB DirectMap4k: 67136 kB DirectMap2M: 4118528 kB CPU:total 8 (4 cores per cpu, 2 threads per core) family 6 model 26 stepping 5, cmov, cx8, fxsr, mmx, sse, sse2, sse3, ssse3, sse4.1, sse4.2, popcnt, ht Memory: 4k page, physical 4048200k(1230476k free), swap 7065596k(7065596k free) vm_info: OpenJDK 64-Bit Server VM (19.0-b09) for linux-amd64 JRE (1.6.0_20-b20), built on Dec 10 2010 19:45:55 by "buildd" with gcc 4.4.5 time: Sat Jan 1 14:12:27 2011 elapsed time: 0 seconds The java code is: ... public class Main { public static void main(String[] args) { ... ImageFile img = new ImageFile(System.getProperty("user.home") + "/PC100001.JPG"); Exiv2MetaDataStore e = new Exiv2MetaDataStore(img); Iterator<Entry<String, String>> i = e.entrySet().iterator(); while (i.hasNext()) { Entry<String, String> entry = i.next(); System.out.println(entry.getKey() + ":" + entry.getValue()); } //if you switch this print statment with the while loop you get the same error. // System.out.print(e.toString()); } } and /** NB: MetaDataStore is an abstract class that extends HashMap<String,String> */ public class Exiv2MetaDataStore extends MetaDataStore{ ... private final ImageFile F; /** * Creates an meta data store from an ImageFile using Exiv2 * this calls loadData(); * @param f */ public Exiv2MetaDataStore(ImageFile f) { F = f; loadData(); } ... @Override protected void loadData() { loadFromExiv2(); } ... private void loadFromExiv2() { impl_loadFromExiv(F.getAbsolutePath(), this); } private native void impl_loadFromExiv(String path, Exiv2MetaDataStore str); //this method called by the C++ code public void exiv2_reciveElement(String key, String value) { super.put(key,value); } static { Runtime.getRuntime().load("/home/hjed/libExiff2-binding.so"); } } C++ code: #include <exif.hpp> #include <image.hpp> #include <iptc.hpp> #include <exiv2/exiv2.hpp> #include <exiv2/error.hpp> #include <iostream> #include <iomanip> #include <cassert> void loadIPTC(Exiv2::Image::AutoPtr image, const char * path, JNIEnv * env, jobject obj) { Exiv2::IptcData &iptcData = image->iptcData(); //load method jclass cls = env->GetObjectClass(obj); jmethodID mid = env->GetMethodID(cls, "exiv2_reciveElement", "(Ljava/lang/String;Ljava/lang/String;)V"); //is there any IPTC data AND check that method exists if (iptcData.empty() | (mid == NULL)) { std::string error(path); error += ": failed loading IPTC data, there may not be any data"; } else { Exiv2::IptcData::iterator end = iptcData.end(); for (Exiv2::IptcData::iterator md = iptcData.begin(); md != end; ++md) { jvalue values[2]; const char* key = md->key().c_str(); values[0].l = env->NewStringUTF(key); md->value().toString().c_str(); const char* value = md->typeName(); values[2].l = env->NewStringUTF(value); //If I replace the code for values[2] with the commented out code I get the same error. //const char* type = md->typeName(); //values[2].l = env->NewStringUTF(type); env->CallVoidMethodA(obj, mid, values); } } } void getVars(const char* path, JNIEnv * env, jobject obj) { //Load image Exiv2::Image::AutoPtr image = Exiv2::ImageFactory::open(path); assert(image.get() != 0); image->readMetadata(); //Load IPTC data loadIPTC(image, path, env, obj); } JNIEXPORT void JNICALL Java_photo_exiv2_Exiv2MetaDataStore_impl_1loadFromExiv(JNIEnv * env, jobject obj, jstring path, jobject obj2) { const char* path2 = env->GetStringUTFChars(path, NULL); getVars(path2, env, obj); env->ReleaseStringUTFChars(path, path2); } I've searched for a fix for this, but I can't find one. I don't have much experience using C++ so if I've made an obvious mistake in the C code I apologies. Thanks for any help, HJED P.S. This is my first post on this site and I wasn't sure how much of the code I needed to show. Sorry if I've put to much up.

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