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• Subterranean IL: Exception handler semantics

  - by Simon Cooper

  In my blog posts on fault and filter exception handlers, I said that the same behaviour could be replicated using normal catch blocks. Well, that isn't entirely true... Changing the handler semantics Consider the following: .try { .try { .try { newobj instance void [mscorlib]System.Exception::.ctor() // IL for: // e.Data.Add("DictKey", true) throw } fault { ldstr "1: Fault handler" call void [mscorlib]System.Console::WriteLine(string) endfault } } filter { ldstr "2a: Filter logic" call void [mscorlib]System.Console::WriteLine(string) // IL for: // (bool)((Exception)e).Data["DictKey"] endfilter }{ ldstr "2b: Filter handler" call void [mscorlib]System.Console::WriteLine(string) leave.s Return } } catch object { ldstr "3: Catch handler" call void [mscorlib]System.Console::WriteLine(string) leave.s Return } Return: // rest of method If the filter handler is engaged (true is inserted into the exception dictionary) then the filter handler gets engaged, and the following gets printed to the console: 2a: Filter logic 1: Fault handler 2b: Filter handler and if the filter handler isn't engaged, then the following is printed: 2a:Filter logic 1: Fault handler 3: Catch handler Filter handler execution The filter handler is executed first. Hmm, ok. Well, what happens if we replaced the fault block with the C# equivalent (with the exception dictionary value set to false)? .try { // throw exception } catch object { ldstr "1: Fault handler" call void [mscorlib]System.Console::WriteLine(string) rethrow } we get this: 1: Fault handler 2a: Filter logic 3: Catch handler The fault handler is executed first, instead of the filter block. Eh? This change in behaviour is due to the way the CLR searches for exception handlers. When an exception is thrown, the CLR stops execution of the thread, and searches up the stack for an exception handler that can handle the exception and stop it propagating further - catch or filter handlers. It checks the type clause of catch clauses, and executes the code in filter blocks to see if the filter can handle the exception. When the CLR finds a valid handler, it saves the handler's location, then goes back to where the exception was thrown and executes fault and finally blocks between there and the handler location, discarding stack frames in the process, until it reaches the handler. So? By replacing a fault with a catch, we have changed the semantics of when the filter code is executed; by using a rethrow instruction, we've split up the exception handler search into two - one search to find the first catch, then a second when the rethrow instruction is encountered. This is only really obvious when mixing C# exception handlers with fault or filter handlers, so this doesn't affect code written only in C#. However it could cause some subtle and hard-to-debug effects with object initialization and ordering when using and calling code written in a language that can compile fault and filter handlers.

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• Subterranean IL: Fault exception handlers

  - by Simon Cooper

  Fault event handlers are one of the two handler types that aren't available in C#. It behaves exactly like a finally, except it is only run if control flow exits the block due to an exception being thrown. As an example, take the following method: .method public static void FaultExample(bool throwException) { .try { ldstr "Entering try block" call void [mscorlib]System.Console::WriteLine(string) ldarg.0 brfalse.s NormalReturn ThrowException: ldstr "Throwing exception" call void [mscorlib]System.Console::WriteLine(string) newobj void [mscorlib]System.Exception::.ctor() throw NormalReturn: ldstr "Leaving try block" call void [mscorlib]System.Console::WriteLine(string) leave.s Return } fault { ldstr "Fault handler" call void [mscorlib]System.Console::WriteLine(string) endfault } Return: ldstr "Returning from method" call void [mscorlib]System.Console::WriteLine(string) ret } If we pass true to this method the following gets printed: Entering try block Throwing exception Fault handler and the exception gets passed up the call stack. So, the exception gets thrown, the fault handler gets run, and the exception propagates up the stack afterwards in the normal way. If we pass false, we get the following: Entering try block Leaving try block Returning from method Because we are leaving the .try using a leave.s instruction, and not throwing an exception, the fault handler does not get called. Fault handlers and C# So why were these not included in C#? It seems a pretty simple feature; one extra keyword that compiles in exactly the same way, and with the same semantics, as a finally handler. If you think about it, the same behaviour can be replicated using a normal catch block: try { throw new Exception(); } catch { // fault code goes here throw; } The catch block only gets run if an exception is thrown, and the exception gets rethrown and propagates up the call stack afterwards; exactly like a fault block. The only complications that occur is when you want to add a fault handler to a try block with existing catch handlers. Then, you either have to wrap the try in another try: try { try { // ... } catch (DirectoryNotFoundException) { // ... // leave.s as normal... } catch (IOException) { // ... throw; } } catch { // fault logic throw; } or separate out the fault logic into another method and call that from the appropriate handlers: try { // ... } catch (DirectoryNotFoundException ) { // ... } catch (IOException ioe) { // ... HandleFaultLogic(); throw; } catch (Exception e) { HandleFaultLogic(); throw; } To be fair, the number of times that I would have found a fault handler useful is minimal. Still, it's quite annoying knowing such functionality exists, but you're not able to access it from C#. Fortunately, there are some easy workarounds one can use instead. Next time: filter handlers.

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• Resgen al.exe generated resources do not work within .net library

  - by Raj G

  Hi, I am currently working on a library in .Net and I planned to make the strings that are used within the library into culture specific resource files. I made Resources.resx, Resources.en-US.resx and Resources.ja-JP.resx file. I also deleted the Resources.designer.cs file autogenerated by visual studio 2008. I am loading Resources through my custom ResourceManager object [using GetString method]. The problem that I am facing is that when I compile the library within visual studio and set the culture from the calling application, everything is working fine. But if I manually go to the directory and change a string for a culture and regenerate the satellite assembly with resgen and al.exe, the string displayed, falls back to the invariant culture. I have attached the ildasm view of both the dlls en-US generated from within visual studio //Metadata version: v2.0.50727 .assembly extern mscorlib { .publickeytoken = (B7 7A 5C 56 19 34 E0 89 ) // .z\V.4.. .hash = (71 05 4D 54 C4 8D C2 90 7D 8B CF 57 2E B5 98 22 // q.MT....}..W..." F5 5B 2E 06 ) // .[.. .ver 2:0:0:0 } .assembly EmailEngine.resources { .custom instance void [mscorlib]System.Reflection.AssemblyTitleAttribute::.ctor(string) = ( 01 00 0B 45 6D 61 69 6C 45 6E 67 69 6E 65 00 00 ) // ...EmailEngine.. .custom instance void [mscorlib]System.Reflection.AssemblyDescriptionAttribute::.ctor(string) = ( 01 00 FF 00 00 ) .custom instance void [mscorlib]System.Reflection.AssemblyCompanyAttribute::.ctor(string) = ( 01 00 FF 00 00 ) .custom instance void [mscorlib]System.Reflection.AssemblyProductAttribute::.ctor(string) = ( 01 00 0B 45 6D 61 69 6C 45 6E 67 69 6E 65 00 00 ) // ...EmailEngine.. .custom instance void [mscorlib]System.Reflection.AssemblyCopyrightAttribute::.ctor(string) = ( 01 00 12 43 6F 70 79 72 69 67 68 74 20 C2 A9 20 // ...Copyright .. 20 32 30 30 38 00 00 ) // 2008.. .custom instance void [mscorlib]System.Reflection.AssemblyTrademarkAttribute::.ctor(string) = ( 01 00 FF 00 00 ) .custom instance void [mscorlib]System.Reflection.AssemblyFileVersionAttribute::.ctor(string) = ( 01 00 07 31 2E 30 2E 30 2E 30 00 00 ) // ...1.0.0.0.. .hash algorithm 0x00008004 .ver 1:0:0:0 .locale = (65 00 6E 00 2D 00 55 00 53 00 00 00 ) // e.n.-.U.S... } .mresource public 'EmailEngine.Properties.Resources.en-US.resources' { // Offset: 0x00000000 Length: 0x00000111 } .module EmailEngine.resources.dll // MVID: {D030D620-4E59-46F4-94F4-5EA0F9554E67} .imagebase 0x00400000 .file alignment 0x00000200 .stackreserve 0x00100000 .subsystem 0x0003 // WINDOWS_CUI .corflags 0x00000001 // ILONLY // Image base: 0x008B0000 ja-JP generated by me using resgen and al.exe // Metadata version: v2.0.50727 .assembly EmailEngine.resources { .hash algorithm 0x00008004 .ver 0:0:0:0 .locale = (6A 00 61 00 00 00 ) // j.a... } .mresource public 'EmailEngine.Properties.Resources.ja-JP.resources' { // Offset: 0x00000000 Length: 0x0000012F } .module EmailEngine.resources.dll // MVID: {0F470BCD-C36D-4B9F-A8ED-205A0E5A9F6F} .imagebase 0x00400000 .file alignment 0x00000200 .stackreserve 0x00100000 .subsystem 0x0003 // WINDOWS_CUI .corflags 0x00000001 // ILONLY // Image base: 0x007F0000 Can anyone help me as to why these two files are different and what is going on here? Why would the same Japanese resource file work when generated from within visual studio and not when generated using tools. TIA Raj

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• Cast exception being generated when using the same type of object

  - by David Tunnell

  I was previously using static variables to hold variable data that I want to save between postbacks. I was having problems and found that the data in these variables is lost when the appdomain ends. So I did some research and decided to go with ViewStates: static Dictionary<string, linkButtonObject> linkButtonDictonary; protected void Page_Load(object sender, EventArgs e) { if (ViewState["linkButtonDictonary"] != null) { linkButtonDictonary = (Dictionary<string, linkButtonObject>)ViewState["linkButtonDictonary"]; } else { linkButtonDictonary = new Dictionary<string, linkButtonObject>(); } } And here is the very simple class I use: [Serializable] public class linkButtonObject { public string storyNumber { get; set; } public string TaskName { get; set; } } I am adding to linkButtonDictionary as a gridview is databound: protected void hoursReportGridView_OnRowDataBound(Object sender, GridViewRowEventArgs e) { if (e.Row.RowType == DataControlRowType.DataRow) { LinkButton btn = (LinkButton)e.Row.FindControl("taskLinkButton"); linkButtonObject currentRow = new linkButtonObject(); currentRow.storyNumber = e.Row.Cells[3].Text; currentRow.TaskName = e.Row.Cells[5].Text; linkButtonDictonary.Add(btn.UniqueID, currentRow); } } It appears that my previous issues are resolved however a new one has arisin. Sometime when I postback I am getting this error: [A]System.Collections.Generic.Dictionary2[System.String,linkButtonObject] cannot be cast to [B]System.Collections.Generic.Dictionary2[System.String,linkButtonObject]. Type A originates from 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' in the context 'LoadNeither' at location 'C:\Windows\Microsoft.Net\assembly\GAC_32\mscorlib\v4.0_4.0.0.0__b77a5c561934e089\mscorlib.dll'. Type B originates from 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' in the context 'LoadNeither' at location 'C:\Windows\Microsoft.Net\assembly\GAC_32\mscorlib\v4.0_4.0.0.0__b77a5c561934e089\mscorlib.dll'. I don't understand how there can be a casting issue when I am using the same class everywhere. What am I doing wrong and how do I fix it?

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• Relationship between .NET ClassLoader and Assembly

  - by smwikipedia

  I am wondering about the relationship between .NET ClassLoader and Assembly I use the "!dumpdomain xxxx" command and got the following output: Domain 1: 00522108 LowFrequencyHeap: 0052212c HighFrequencyHeap: 00522178 StubHeap: 005221c4 Stage: OPEN SecurityDescriptor: 00523430 Name: BoxUnbox.exe **Assembly**: 0056eb88 [C:\Windows\assembly\GAC_32\mscorlib\2.0.0.0__b77a5c561934e089\mscorlib.dll] **ClassLoader**: 0056ec08 SecurityDescriptor: 0056c078 Module Name 56d71000 C:\Windows\assembly\GAC_32\mscorlib\2.0.0.0__b77a5c561934e089\mscorlib.dll **Assembly**: 005794f0 [] **ClassLoader**: 00579570 SecurityDescriptor: 0057a018 Module Name 00152c5c I noticed that the "ClassLoader" and "Assembly" appear in pair. It seems each Assembly is accompanied with its own "ClassLoader". Why like this? Is this a litte noisy? Why not just assign one "ClassLoader" to a AppDomain and use it to load all the used Assembly into the AppDomain? Isnt't this design more elegant? Many thanks.

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• Dependency Injection for Windows Phone 7

  - by Igor Zevaka

  I was trying to use Unity 2.0 beta 2 for Silverlight in my Windows Phone 7 project and I kept getting this crash: Microsoft.Practices.Unity.Silverlight.dll!Microsoft.Practices.ObjectBuilder2.DynamicMethodConstructorStrategy.DynamicMethodConstructorStrategy() + 0x1f bytes Microsoft.Practices.Unity.Silverlight.dll!Microsoft.Practices.ObjectBuilder2.DynamicMethodConstructorStrategy.DynamicMethodConstructorStrategy() + 0x1f bytes mscorlib.dll!System.Reflection.RuntimeConstructorInfo.InternalInvoke(System.Reflection.RuntimeConstructorInfo rtci = {System.Reflection.RuntimeConstructorInfo}, System.Reflection.BindingFlags invokeAttr = Default, System.Reflection.Binder binder = null, object parameters = {object[0]}, System.Globalization.CultureInfo culture = null, bool isBinderDefault = false, System.Reflection.Assembly caller = null, bool verifyAccess = true, ref System.Threading.StackCrawlMark stackMark = LookForMyCaller) mscorlib.dll!System.Reflection.RuntimeConstructorInfo.InternalInvoke(object obj = null, System.Reflection.BindingFlags invokeAttr = Default, System.Reflection.Binder binder = null, object[] parameters = {object[0]}, System.Globalization.CultureInfo culture = null, ref System.Threading.StackCrawlMark stackMark = LookForMyCaller) + 0x103 bytes mscorlib.dll!System.Activator.InternalCreateInstance(System.Type type = {Name = "DynamicMethodConstructorStrategy" FullName = "Microsoft.Practices.ObjectBuilder2.DynamicMethodConstructorStrategy"}, bool nonPublic = false, ref System.Threading.StackCrawlMark stackMark = LookForMyCaller) + 0xf0 bytes mscorlib.dll!System.Activator.CreateInstance() + 0xc bytes Microsoft.Practices.Unity.Silverlight.dll!Microsoft.Practices.ObjectBuilder2.StagedStrategyChain.AddNew(Microsoft.Practices.Unity.ObjectBuilder.UnityBuildStage stage = Creation) + 0x1d bytes Microsoft.Practices.Unity.Silverlight.dll!Microsoft.Practices.Unity.UnityDefaultStrategiesExtension.Initialize() + 0x6c bytes Microsoft.Practices.Unity.Silverlight.dll!Microsoft.Practices.Unity.UnityContainerExtension.InitializeExtension(Microsoft.Practices.Unity.ExtensionContext context = {Microsoft.Practices.Unity.UnityContainer.ExtensionContextImpl}) + 0x31 bytes Microsoft.Practices.Unity.Silverlight.dll!Microsoft.Practices.Unity.UnityContainer.AddExtension(Microsoft.Practices.Unity.UnityContainerExtension extension = {Microsoft.Practices.Unity.UnityDefaultStrategiesExtension}) + 0x1a bytes Microsoft.Practices.Unity.Silverlight.dll!Microsoft.Practices.Unity.UnityContainer.UnityContainer() + 0xf bytes Thinking I could resolve it I've tried a few things but to no avail. Turns out that this is a rather fundamental problem and my assumption that Windows Phone 7 is Silverlight 3 + Some other stuff is wrong. This page describes the differences between Mobile Silverlight and Silverlight 3. Of particular interest is this: The System.Reflection.Emit namespace is not supported in Silverlight for Windows Phone. This is precisely why Unity is crashing on the phone, DynamicMethodConstructorStrategy class uses System.Reflection.Emit quite extensively... So the question is, what alternative to Unity is there for Windows Phone 7?

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• Logging Application Block

  - by Gordon Carpenter-Thompson

  I'm using the Logging Application Block in my ASP.NET application and want to convert the application to a Sharepoint WebPart. It all works fine as long as I change: <trust level="WSS_Minimal" originUrl="" /> to <trust level="Full" originUrl="" /> If not I get an exception in the logs: Failed to add webpart *************255Fcatalogs%252Fwp%252FSearchWebPart%252Ewebpart;SearchWebPart. Exception Microsoft.SharePoint.WebPartPages.WebPartPageUserException: The type initializer for 'Microsoft.Practices.EnterpriseLibrary.Logging.Logger' threw an exception. ---> System.TypeInitializationException: The type initializer for 'Microsoft.Practices.EnterpriseLibrary.Logging.Logger' threw an exception. ---> System.TypeInitializationException: The type initializer for 'Microsoft.Practices.EnterpriseLibrary.Common.Configuration.SystemConfigurationSource' threw an exception. ---> System.Security.SecurityException: Request for the permission of type 'System.Security.Permissions.FileIOPermission, mscorlib, Version=2.0.0.0, Culture=neut... ...ral, PublicKeyToken=b77a5c561934e089' failed. at System.Security.CodeAccessSecurityEngine.Check(Object demand, StackCrawlMark& stackMark, Boolean isPermSet) at System.Security.CodeAccessPermission.Demand() at System.AppDomainSetup.VerifyDir(String dir, Boolean normalize) at System.AppDomainSetup.get_ConfigurationFile() at Microsoft.Practices.EnterpriseLibrary.Common.Configuration.SystemConfigurationSourceImplementation..ctor(Boolean refresh) at Microsoft.Practices.EnterpriseLibrary.Common.Configuration.SystemConfigurationSource..cctor() The action that failed was: Demand The type of the first permission that failed was: System.Security.Permissions.FileIOPermission The first permission that failed was: <IPermission class="System.Security.Permissions.FileIOPermi... ...ssion, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" PathDiscovery="D:\Inetpub\wwwroot\wss\VirtualDirectories\8686\web.config"/> The demand was for: <IPermission class="System.Security.Permissions.FileIOPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" PathDiscovery="D:\Inetpub\wwwroot\wss\VirtualDirectories\8686\web.config"/> The granted set of the failing assembly was: <PermissionSet class="System.Security.PermissionSet" version="1"> <IPermission class="System.Security.Permissions.SecurityPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Flags="Execution"/> <IPermission class="System.Security.Permissions.StrongNameIdentityPermis... ...sion, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" PublicKeyBlob="0024000004800000940000000602000000240000525341310004000001000100257FAE170ABB2AB4A8EF914DFEA757F7DB8C221F01850FC8753A4C6585C0B07749DA33DF4D64A721A070E7CDCDEFC8C786E3626418389BCF461E4300E6F4C477BE5CE64AD12C29D517208D6BA627D9F73A9066B7638BE1FEE3EABE6C3E537B546CB3B5DE5E436F95278BB1E9DBDE85C2A6B624010A8073841D467CC7A0A0C6C8" Name="Microsoft.Practices.EnterpriseLibrary.Common" AssemblyVersion="3.1.0.0"/> <IPermission class="System.Security.Permissions.UrlIdentityPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Url="file:///D:/Inetpub/wwwroot/wss/VirtualDirectories/8686/bin/Microsoft.Practices.EnterpriseLibrary.Common.DLL"/> <IPe... ...rmission class="System.Security.Permissions.ZoneIdentityPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Zone="MyComputer"/> <IPermission class="System.Web.AspNetHostingPermission, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Level="Minimal"/> <IPermission class="Microsoft.SharePoint.Security.WebPartPermission, Microsoft.SharePoint.Security, Version=12.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" version="1" Connections="True"/> </PermissionSet> The assembly or AppDomain that failed was: Microsoft.Practices.EnterpriseLibrary.Common, Version=3.1.0.0, Culture=neutral, PublicKeyToken=a646907c4a695009 The Zone of the assembly that failed was: MyComputer The Url of the assem... ...bly that failed was: file:///D:/Inetpub/wwwroot/wss/VirtualDirectories/8686/bin/Microsoft.Practices.EnterpriseLibrary.Common.DLL --- End of inner exception stack trace --- at Microsoft.Practices.EnterpriseLibrary.Common.Configuration.SystemConfigurationSource..ctor() at Microsoft.Practices.EnterpriseLibrary.Common.Configuration.ConfigurationSourceFactory.Create() at Microsoft.Practices.EnterpriseLibrary.Logging.Logger..cctor() --- End of inner exception stack trace --- at Microsoft.Practices.EnterpriseLibrary.Logging.Logger.Write(LogEntry log) at com.okana.sharepoint.SearchWebPart.OnLoad(EventArgs e) at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.AddedControl(Control control, Int32 index) at System.Web.UI.ControlCollection.Add(Con... ...trol child) at System.Web.UI.WebControls.WebParts.WebPartManager.WebPartManagerControlCollection.AddWebPartHelper(WebPart webPart) at System.Web.UI.WebControls.WebParts.WebPartManager.WebPartManagerControlCollection.AddWebPart(WebPart webPart) at System.Web.UI.WebControls.WebParts.WebPartManager.AddWebPart(WebPart webPart) at System.Web.UI.WebControls.WebParts.WebPartManagerInternals.AddWebPart(WebPart webPart) at Microsoft.SharePoint.WebPartPages.SPWebPartManager.AddWebPartWithRetry(WebPart webPart) at Microsoft.SharePoint.WebPartPages.SPWebPartManager.AddDynamicWebPart(WebPart webPart) at Microsoft.SharePoint.WebPartPages.SPWebPartManager.LoadWebPart(WebPart aspWebPart, String zoneId, Int32 zoneIndex, Boolean isClosed) at Microsoft.SharePoint.WebPartPages.... ...SPWebPartManager.AddWebPartInternalShared(WebPart webPart) at Microsoft.SharePoint.WebPartPages.SPWebPartManager.AddWebPartInternal(SPSupersetWebPart superset, Boolean throwIfLocked) --- End of inner exception stack trace --- at Microsoft.SharePoint.WebPartPages.SPWebPartManager.AddWebPartInternal(SPSupersetWebPart superset, Boolean throwIfLocked) at Microsoft.SharePoint.WebPartPages.SPWebPartManager.AddWebPartInternal(SPSupersetWebPart superset) at Microsoft.SharePoint.WebPartPages.WebPartQuickAdd.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) My log configuration is this: <loggingConfiguration name="Logging Application Block" tracingEnabled="true" defaultCategory="General" logWarningsWhenNoCategoriesMatch="true"> <listeners> <add fileName="XAE.log" rollSizeKB="0" timeStampPattern="yyyy-MM-dd" rollFileExistsBehavior="Overwrite" rollInterval="Day" formatter="Text Formatter" header="" footer="" listenerDataType="Microsoft.Practices.EnterpriseLibrary.Logging.Configuration.RollingFlatFileTraceListenerData, Microsoft.Practices.EnterpriseLibrary.Logging, Version=3.1.0.0, Culture=neutral" traceOutputOptions="None" type="Microsoft.Practices.EnterpriseLibrary.Logging.TraceListeners.RollingFlatFileTraceListener, Microsoft.Practices.EnterpriseLibrary.Logging, Version=3.1.0.0, Culture=neutral" name="Rolling Flat File Trace Listener" /> <add fileName="IDOL.log" rollSizeKB="0" timeStampPattern="yyyy-MM-dd" rollFileExistsBehavior="Overwrite" rollInterval="Day" formatter="Text Formatter" header="" footer="" listenerDataType="Microsoft.Practices.EnterpriseLibrary.Logging.Configuration.RollingFlatFileTraceListenerData, Microsoft.Practices.EnterpriseLibrary.Logging, Version=3.1.0.0, Culture=neutral" traceOutputOptions="None" type="Microsoft.Practices.EnterpriseLibrary.Logging.TraceListeners.RollingFlatFileTraceListener, Microsoft.Practices.EnterpriseLibrary.Logging, Version=3.1.0.0, Culture=neutral" name="IDOL Rolling Flat File Trace Listener" /> </listeners> <formatters> <add template="{timestamp(local)} : {category} : {message}" type="Microsoft.Practices.EnterpriseLibrary.Logging.Formatters.TextFormatter, Microsoft.Practices.EnterpriseLibrary.Logging, Version=3.1.0.0, Culture=neutral" name="Text Formatter" /> </formatters> <categorySources> <!-- For any log entries that you wish to suppress set "All" to "Off" --> <add switchValue="All" name="Communication"> <listeners> <add name="Rolling Flat File Trace Listener" /> </listeners> </add> <add switchValue="All" name="Debug"> <listeners> <add name="Rolling Flat File Trace Listener" /> </listeners> </add> <add switchValue="All" name="Exception"> <listeners> <add name="Rolling Flat File Trace Listener" /> </listeners> </add> <add switchValue="All" name="General"> <listeners> <add name="Rolling Flat File Trace Listener" /> </listeners> </add> <add switchValue="All" name="Warning"> <listeners> <add name="Rolling Flat File Trace Listener" /> </listeners> </add> <add switchValue="All" name="IDOL"> <listeners> <add name="IDOL Rolling Flat File Trace Listener" /> </listeners> </add> </categorySources> <specialSources> <allEvents switchValue="All" name="All Events" /> <notProcessed switchValue="All" name="Unprocessed Category" /> <errors switchValue="All" name="Logging Errors &amp; Warnings"> <listeners> <add name="Rolling Flat File Trace Listener" /> </listeners> </errors> </specialSources> </loggingConfiguration> Clearly this is because it's trying to create the log files and WSS_Minimal doesn't allow this. Is there a simple way to disable all logging for now? Removing the logging is problematic as it's used in the underlying libraries. I have tried setting all switchValue="All" to "Off" but it still throws the exception even though nothing should be logged

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• Why is C# winforms application not working without VS.NET installed?

  - by Shane

  Hi folks, I have a winforms c# app that has an embedded webbrowser control inside it generated through VS.NET 2008. We sink events by inheriting our events class from HTMLDocumentEvents2. public class IEHTMLDocumentEvents : mshtml.HTMLDocumentEvents2 { public bool onclick(mshtml.IHTMLEventObj pEvtObj) { // Clicking on an input (checkbox, radio, button, image) if (pEvtObj.srcElement.tagName == "INPUT") { // The following will result in a null pointer without VS.NET installed HTMLInputElementClass input = pEvtObj.srcElement as HTMLInputElementClass; } } } The code above works fine when clicking on elements in the webbrowser control on our dev machines with VS.NET installed. However it fails to cast the pEvtObj.srcElement when VS.NET is not installed. This immediately starts working when we install the most basic VS.NET with C# that you can. To note: The rest of the c# app works fine, and you can browser the web through the control fine as well, just that the events like the above 'onclick' can't be handled properly. I thought it would be a DLL version loaded issue but doing a diff of the files loaded indicates only minor differences. 1c1 < Process: C# App without VS.NET installed --- > Process: C# App with VS.NET 2008 installed 18d17 < C:\WINDOWS\assembly\NativeImages_v2.0.50727_32\CustomMarshalers\e148983beeb0f30918b0564849a16456\CustomMarshalers.ni.dll CustomMarshalers.ni.dll Microsoft .NET Framework Custom Marshalers Microsoft Corporation 2.0.50727.3053 36d34 < C:\Documents and Settings\XpHome\Local Settings\History\History.IE5\index.dat index.dat 37a36 > C:\Documents and Settings\XpHome\Local Settings\History\History.IE5\index.dat index.dat 44,45c43,44 < C:\Program Files\<hidden>\<hidden>\Microsoft.mshtml.dll Microsoft.mshtml.dll 7.0.3300.1 < C:\WINDOWS\assembly\NativeImages_v2.0.50727_32\Microsoft.VisualBas#\5b3d048d8c003d743ea5e72caf07773a\Microsoft.VisualBasic.ni.dll Microsoft.VisualBasic.ni.dll Visual Basic Runtime Library Microsoft Corporation 8.0.50727.3053 --- > C:\WINDOWS\assembly\GAC\Microsoft.mshtml\7.0.3300.0__b03f5f7f11d50a3a\Microsoft.mshtml.dll Microsoft.mshtml.dll 7.0.3300.1 > C:\WINDOWS\assembly\GAC_MSIL\Microsoft.VisualBasic\8.0.0.0__b03f5f7f11d50a3a\Microsoft.VisualBasic.dll Microsoft.VisualBasic.dll Visual Basic Runtime Library Microsoft Corporation 8.0.50727.3053 50,52c49,51 < c:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\mscorjit.dll mscorjit.dll Microsoft .NET Runtime Just-In-Time Compiler Microsoft Corporation 2.0.50727.3053 < C:\WINDOWS\assembly\NativeImages_v2.0.50727_32\mscorlib\9adb89fa22fd5b4ce433b5aca7fb1b07\mscorlib.ni.dll mscorlib.ni.dll Microsoft Common Language Runtime Class Library Microsoft Corporation 2.0.50727.3053 < c:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\mscorwks.dll mscorwks.dll Microsoft .NET Runtime Common Language Runtime - WorkStation Microsoft Corporation 2.0.50727.3053 --- > c:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\mscorjit.dll mscorjit.dll Microsoft .NET Runtime Just-In-Time Compiler Microsoft Corporation 2.0.50727.3082 > C:\WINDOWS\assembly\NativeImages_v2.0.50727_32\mscorlib\7124a40b9998f7b63c86bd1a2125ce26\mscorlib.ni.dll mscorlib.ni.dll Microsoft Common Language Runtime Class Library Microsoft Corporation 2.0.50727.3603 > c:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\mscorwks.dll mscorwks.dll Microsoft .NET Runtime Common Language Runtime - WorkStation Microsoft Corporation 2.0.50727.3603 94,98c93,97 < C:\WINDOWS\assembly\NativeImages_v2.0.50727_32\System.Configuration\cb4cb21d14767292e079366a5d3d76cd\System.Configuration.ni.dll System.Configuration.ni.dll System.Configuration.dll Microsoft Corporation 2.0.50727.3053 < C:\WINDOWS\assembly\NativeImages_v2.0.50727_32\System.Drawing\6978f2e90f13bc720d57fa6895c911e2\System.Drawing.ni.dll System.Drawing.ni.dll .NET Framework Microsoft Corporation 2.0.50727.3053 < C:\WINDOWS\assembly\NativeImages_v2.0.50727_32\System\aa7926460a336408c8041330ad90929d\System.ni.dll System.ni.dll .NET Framework Microsoft Corporation 2.0.50727.3053 < C:\WINDOWS\assembly\NativeImages_v2.0.50727_32\System.Windows.Forms\9a254c455892c02355ab0ab0f0727c5b\System.Windows.Forms.ni.dll System.Windows.Forms.ni.dll .NET Framework Microsoft Corporation 2.0.50727.3053 < C:\WINDOWS\assembly\NativeImages_v2.0.50727_32\System.Xml\36f3953f24d4f0b767bf172331ad6f3e\System.Xml.ni.dll System.Xml.ni.dll .NET Framework Microsoft Corporation 2.0.50727.3053 --- > C:\WINDOWS\assembly\GAC_MSIL\System.Configuration\2.0.0.0__b03f5f7f11d50a3a\System.Configuration.dll System.Configuration.dll System.Configuration.dll Microsoft Corporation 2.0.50727.3053 > C:\WINDOWS\assembly\NativeImages_v2.0.50727_32\System.Drawing\abb2ac7e08bee026f857d8fa36f9fe6f\System.Drawing.ni.dll System.Drawing.ni.dll .NET Framework Microsoft Corporation 2.0.50727.3053 > C:\WINDOWS\assembly\NativeImages_v2.0.50727_32\System\3de5bd01124463d7862bd173af90bc83\System.ni.dll System.ni.dll .NET Framework Microsoft Corporation 2.0.50727.3053 > C:\WINDOWS\assembly\NativeImages_v2.0.50727_32\System.Windows.Forms\d2ea8d76f015817db1607075812b555f\System.Windows.Forms.ni.dll System.Windows.Forms.ni.dll .NET Framework Microsoft Corporation 2.0.50727.3053 > C:\WINDOWS\assembly\NativeImages_v2.0.50727_32\System.Xml\5913d3f81e77194ec833991b1047a532\System.Xml.ni.dll System.Xml.ni.dll .NET Framework Microsoft Corporation 2.0.50727.3082

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• Paging over a lazy-loaded collection with NHibernate

  - by HackedByChinese

  I read this article where Ayende states NHibernate can (compared to EF 4): Collection with lazy=”extra” – Lazy extra means that NHibernate adapts to the operations that you might run on top of your collections. That means that blog.Posts.Count will not force a load of the entire collection, but rather would create a “select count(*) from Posts where BlogId = 1” statement, and that blog.Posts.Contains() will likewise result in a single query rather than paying the price of loading the entire collection to memory. Collection filters and paged collections - this allows you to define additional filters (including paging!) on top of your entities collections, which means that you can easily page through the blog.Posts collection, and not have to load the entire thing into memory. So I decided to put together a test case. I created the cliché Blog model as a simple demonstration, with two classes as follows: public class Blog { public virtual int Id { get; private set; } public virtual string Name { get; set; } public virtual ICollection<Post> Posts { get; private set; } public virtual void AddPost(Post item) { if (Posts == null) Posts = new List<Post>(); if (!Posts.Contains(item)) Posts.Add(item); } } public class Post { public virtual int Id { get; private set; } public virtual string Title { get; set; } public virtual string Body { get; set; } public virtual Blog Blog { get; private set; } } My mappings files look like this: <hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" default-access="property" auto-import="true" default-cascade="none" default-lazy="true"> <class xmlns="urn:nhibernate-mapping-2.2" name="Model.Blog, TestEntityFramework, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null" table="Blogs"> <id name="Id" type="System.Int32, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"> <column name="Id" /> <generator class="identity" /> </id> <property name="Name" type="System.String, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"> <column name="Name" /> </property> <property name="Type" type="System.Int32, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"> <column name="Type" /> </property> <bag lazy="extra" name="Posts"> <key> <column name="Blog_Id" /> </key> <one-to-many class="Model.Post, TestEntityFramework, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null" /> </bag> </class> </hibernate-mapping> <hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" default-access="property" auto-import="true" default-cascade="none" default-lazy="true"> <class xmlns="urn:nhibernate-mapping-2.2" name="Model.Post, TestEntityFramework, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null" table="Posts"> <id name="Id" type="System.Int32, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"> <column name="Id" /> <generator class="identity" /> </id> <property name="Title" type="System.String, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"> <column name="Title" /> </property> <property name="Body" type="System.String, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"> <column name="Body" /> </property> <many-to-one class="Model.Blog, TestEntityFramework, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null" name="Blog"> <column name="Blog_id" /> </many-to-one> </class> </hibernate-mapping> My test case looks something like this: using (ISession session = Configuration.Current.CreateSession()) // this class returns a custom ISession that represents either EF4 or NHibernate { blogs = (from b in session.Linq<Blog>() where b.Name.Contains("Test") orderby b.Id select b); Console.WriteLine("# of Blogs containing 'Test': {0}", blogs.Count()); Console.WriteLine("Viewing the first 5 matching Blogs."); foreach (Blog b in blogs.Skip(0).Take(5)) { Console.WriteLine("Blog #{0} \"{1}\" has {2} Posts.", b.Id, b.Name, b.Posts.Count); Console.WriteLine("Viewing first 5 matching Posts."); foreach (Post p in b.Posts.Skip(0).Take(5)) { Console.WriteLine("Post #{0} \"{1}\" \"{2}\"", p.Id, p.Title, p.Body); } } } Using lazy="extra", the call to b.Posts.Count does do a SELECT COUNT(Id)... which is great. However, b.Posts.Skip(0).Take(5) just grabs all Posts for Blog.Id = ?id, and then LINQ on the application side is just taking the first 5 from the resulting collection. What gives?

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• How to write in an file in MSIL code

  - by Thomas

  Hi all, I have a aspx webpage which uses an assembly mine (which mades a custom authentification). I would like to modify MSIL code (so just with ILDASM/ILASM tools) of my assembly in order to log something in a file. I have tried to add this at the end of the authentification method of my assembly : IL_0034: ldstr "C:\\path_to_my_website\\log.txt" IL_0039: newobj instance void [mscorlib]System.IO.StreamWriter::.ctor(string) IL_003e: stloc.1 IL_003f: ldloc.1 IL_0040: ldstr "test" IL_0045: callvirt instance void [mscorlib]System.IO.TextWriter::Write(string) IL_004a: nop IL_004b: ldloc.1 IL_004c: callvirt instance void [mscorlib]System.IO.TextWriter::Close() IL_0051: nop ILASM does not find any error, and the CLR does not throw any exception at runtime, but the file is not created or modified ! :( Any idea ?

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• Winforms TabControl causing spurious Paint events for UserControl

  - by Tom Bushell

  For our project, we've written a WinForms UserControl for graphing. We're seeing some strange behavior when our control is sited in a TabControl - our control continuously fires Paint events, even when there is absolutely no activity by the user. We only see this in the TabControl. When we site our control in other containers such as Forms or Splitters, Paint is only fired when you'd expect e.g. when the control is first displayed, etc. Can anyone suggest why this might be happening? Here's a stack trace from a breakpoint in our control's Paint handler, if that's any help. OverlordFrontEnd.exe!OverlordFrontEnd.MainForm.graphControl_Paint(object sender = BI_BaseGraphXY.BaseGraphXY}, System.Windows.Forms.PaintEventArgs e = {ClipRectangle = {X=0,Y=0,Width=1031,Height=408}}) Line 422 C# System.Windows.Forms.dll!System.Windows.Forms.Control.OnPaint(System.Windows.Forms.PaintEventArgs e) + 0x73 bytes BI_AppCore.dll!BI_BaseGraphXY.BaseGraphXY.OnPaint(System.Windows.Forms.PaintEventArgs e = {ClipRectangle = {X=0,Y=0,Width=1031,Height=408}}) Line 377 + 0xb bytes C# System.Windows.Forms.dll!System.Windows.Forms.Control.PaintTransparentBackground(System.Windows.Forms.PaintEventArgs e, System.Drawing.Rectangle rectangle, System.Drawing.Region transparentRegion = null) + 0x16c bytes System.Windows.Forms.dll!System.Windows.Forms.Control.PaintBackground(System.Windows.Forms.PaintEventArgs e = {ClipRectangle = {X=0,Y=0,Width=1029,Height=406}}, System.Drawing.Rectangle rectangle, System.Drawing.Color backColor, System.Drawing.Point scrollOffset) + 0xbc bytes System.Windows.Forms.dll!System.Windows.Forms.Control.PaintBackground(System.Windows.Forms.PaintEventArgs e, System.Drawing.Rectangle rectangle) + 0x63 bytes System.Windows.Forms.dll!System.Windows.Forms.Control.OnPaintBackground(System.Windows.Forms.PaintEventArgs pevent) + 0x59 bytes System.Windows.Forms.dll!System.Windows.Forms.Control.PaintWithErrorHandling(System.Windows.Forms.PaintEventArgs e = {ClipRectangle = {X=0,Y=0,Width=1029,Height=406}}, short layer, bool disposeEventArgs = false) + 0x74 bytes System.Windows.Forms.dll!System.Windows.Forms.Control.WmPaint(ref System.Windows.Forms.Message m) + 0x1ba bytes System.Windows.Forms.dll!System.Windows.Forms.Control.WndProc(ref System.Windows.Forms.Message m) + 0x33e bytes System.Windows.Forms.dll!System.Windows.Forms.Control.ControlNativeWindow.OnMessage(ref System.Windows.Forms.Message m) + 0x10 bytes System.Windows.Forms.dll!System.Windows.Forms.Control.ControlNativeWindow.WndProc(ref System.Windows.Forms.Message m) + 0x31 bytes System.Windows.Forms.dll!System.Windows.Forms.NativeWindow.Callback(System.IntPtr hWnd, int msg = 15, System.IntPtr wparam, System.IntPtr lparam) + 0x5a bytes [Native to Managed Transition] [Managed to Native Transition] System.Windows.Forms.dll!System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(int dwComponentID, int reason = -1, int pvLoopData = 0) + 0x24e bytes System.Windows.Forms.dll!System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(int reason = -1, System.Windows.Forms.ApplicationContext context = {Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.WinFormsAppContext}) + 0x177 bytes System.Windows.Forms.dll!System.Windows.Forms.Application.ThreadContext.RunMessageLoop(int reason, System.Windows.Forms.ApplicationContext context) + 0x61 bytes System.Windows.Forms.dll!System.Windows.Forms.Application.Run(System.Windows.Forms.ApplicationContext context) + 0x18 bytes Microsoft.VisualBasic.dll!Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.OnRun() + 0x81 bytes Microsoft.VisualBasic.dll!Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.DoApplicationModel() + 0xef bytes Microsoft.VisualBasic.dll!Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.Run(string[] commandLine) + 0x2c0 bytes OverlordFrontEnd.exe!OverlordFrontEnd.Program.Main() Line 36 + 0x10 bytes C# [Native to Managed Transition] [Managed to Native Transition] mscorlib.dll!System.AppDomain.ExecuteAssembly(string assemblyFile, System.Security.Policy.Evidence assemblySecurity, string[] args) + 0x3a bytes Microsoft.VisualStudio.HostingProcess.Utilities.dll!Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly() + 0x2b bytes mscorlib.dll!System.Threading.ThreadHelper.ThreadStart_Context(object state) + 0x66 bytes mscorlib.dll!System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, object state) + 0x6f bytes mscorlib.dll!System.Threading.ThreadHelper.ThreadStart() + 0x44 bytes

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• i want to return List<DictionaryClass<string,string>> from web service but getting error for IDictio

  - by girish

  [WebMethod] public List<DictionaryClass<string,string>> GetDataByModuleDictionary(string ModuleName) { return BAL_GeneralService.GetDataByModuleDictionary(ModuleName); } here i m getting the following error... The type DictionaryClass`2[[System.String, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089],[System.String, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]] is not supported because it implements IDictionary.

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• How to delete a native image ?

  - by Thomas

  Hi all, I am not able to delete a native image : del c:\windows\assembly\native...\mscorlib\xxxx\mscorlib.ni.dll access refused That works on Windows XP, but not in Seven. Does someone know how can I do ? Thanks

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• SecurityException in Sandboxed AppDomain

  - by Galen

  I'm attempting to use C# as a scripting language using CSharpCodeProvider (using VS2010 and .NET 4.0). I want the scripts to be run in a restricted AppDomain with minimal permissions. Currently, I'm getting an exception while trying to instantiate a class in the AppDomain (The call to CreateInstanceAndUnwrap()). Here is some simplified code that reproduces the exception: using System; using System.Collections.Generic; using Microsoft.CSharp; using System.CodeDom; using System.CodeDom.Compiler; using System.Security; using System.Security.Policy; using System.Security.Permissions; using System.Reflection; using System.Runtime.Remoting; namespace ConsoleApp { class Program { static void Main(string[] args) { // set permissions PermissionSet permissions = new PermissionSet(PermissionState.None); permissions.AddPermission(new SecurityPermission( SecurityPermissionFlag.Execution)); AppDomainSetup adSetup = new AppDomainSetup(); adSetup.ApplicationBase = AppDomain.CurrentDomain.BaseDirectory; //Create a list of fully trusted assemblies Assembly[] asms = AppDomain.CurrentDomain.GetAssemblies(); List<StrongName> sns = new List<StrongName>(); for (int x = 0; x < asms.Length; x++) { StrongName sn = asms[x].Evidence.GetHostEvidence<StrongName>(); if (sn != null && sns.Contains(sn) == false) sns.Add(sn); } //this includes: "mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" AppDomain domain = AppDomain.CreateDomain("NewAppDomain", AppDomain.CurrentDomain.Evidence, adSetup, permissions);//, sns);//, sn4, sn, sn2, sn3); try { String asmName = Assembly.GetExecutingAssembly().FullName; String typeName = typeof(ConsoleApp.ScriptRunner).FullName; //Throws exception here ScriptRunner scriptRunner = domain.CreateInstanceAndUnwrap(asmName, typeName) as ScriptRunner; } catch (SecurityException se) { System.Diagnostics.Debug.WriteLine(se.Message); } catch (Exception ex) { System.Diagnostics.Debug.WriteLine(ex.Message); } } } public class ScriptRunner : MarshalByRefObject { public ScriptRunner() { //A breakpoint placed here is never reached. CompilerParameters param; param = new CompilerParameters(); param.CompilerOptions = ""; param.GenerateExecutable = false; param.GenerateInMemory = true; param.IncludeDebugInformation = false; // C# compiler CSharpCodeProvider codeProvider = new CSharpCodeProvider(); CompilerResults results = codeProvider.CompileAssemblyFromFile(param, "Danger.cs"); } } } The exception is being thrown from mscorlib and it is a System.Reflection.TargetInvocationException that has an inner System.Security.SecurityException. Here is the exception: System.Reflection.TargetInvocationException was unhandled Message=Exception has been thrown by the target of an invocation. Source=mscorlib StackTrace: at System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean publicOnly, Boolean noCheck, Boolean& canBeCached, RuntimeMethodHandleInternal& ctor, Boolean& bNeedSecurityCheck) at System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean skipCheckThis, Boolean fillCache) at System.RuntimeType.CreateInstanceDefaultCtor(Boolean publicOnly, Boolean skipVisibilityChecks, Boolean skipCheckThis, Boolean fillCache) at System.Activator.CreateInstance(Type type, Boolean nonPublic) at System.RuntimeType.CreateInstanceImpl(BindingFlags bindingAttr, Binder binder, Object[] args, CultureInfo culture, Object[] activationAttributes) at System.Activator.CreateInstance(Type type, BindingFlags bindingAttr, Binder binder, Object[] args, CultureInfo culture, Object[] activationAttributes) at System.Activator.CreateInstance(String assemblyName, String typeName, Boolean ignoreCase, BindingFlags bindingAttr, Binder binder, Object[] args, CultureInfo culture, Object[] activationAttributes, Evidence securityInfo, StackCrawlMark& stackMark) at System.Activator.CreateInstance(String assemblyName, String typeName) at System.AppDomain.CreateInstance(String assemblyName, String typeName) at System.AppDomain.CreateInstanceAndUnwrap(String assemblyName, String typeName) at System.AppDomain.CreateInstanceAndUnwrap(String assemblyName, String typeName) at ConsoleApp.Program.Main(String[] args) in C:\Documents and Settings\NaultyCS\my documents\visual studio 2010\Projects\ConsoleApplication4\ConsoleApplication4\Program.cs:line 46 at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args) at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args) at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly() at System.Threading.ThreadHelper.ThreadStart_Context(Object state) at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx) at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state) at System.Threading.ThreadHelper.ThreadStart() InnerException: System.Security.SecurityException Message=Request failed. Source=ConsoleApplication4 GrantedSet=<PermissionSet class="System.Security.PermissionSet" version="1"> <IPermission class="System.Security.Permissions.SecurityPermission, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Flags="Execution"/> </PermissionSet> PermissionState=<PermissionSet class="System.Security.PermissionSet" version="1" Unrestricted="true"/> RefusedSet="" Url=file:///C:/Documents and Settings/NaultyCS/my documents/visual studio 2010/Projects/ConsoleApplication4/ConsoleApplication4/bin/Debug/ConsoleApplication4.EXE StackTrace: at ConsoleApp.ScriptRunner..ctor() InnerException: So it appears to me that mscorlib is demanding full trust. I've added it as a fully trusted assembly, but it has no effect. What am I doing wrong here?

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• Subterranean IL: Custom modifiers

  - by Simon Cooper

  In IL, volatile is an instruction prefix used to set a memory barrier at that instruction. However, in C#, volatile is applied to a field to indicate that all accesses on that field should be prefixed with volatile. As I mentioned in my previous post, this means that the field definition needs to store this information somehow, as such a field could be accessed from another assembly. However, IL does not have a concept of a 'volatile field'. How is this information stored? Attributes The standard way of solving this is to apply a VolatileAttribute or similar to the field; this extra metadata notifies the C# compiler that all loads and stores to that field should use the volatile prefix. However, there is a problem with this approach, namely, the .NET C++ compiler. C++ allows methods to be overloaded using properties, like volatile or const, on the parameters; this is perfectly legal C++: public ref class VolatileMethods { void Method(int *i) {} void Method(volatile int *i) {} } If volatile was specified using a custom attribute, then the VolatileMethods class wouldn't be compilable to IL, as there is nothing to differentiate the two methods from each other. This is where custom modifiers come in. Custom modifiers Custom modifiers are similar to custom attributes, but instead of being applied to an IL element separately to its declaration, they are embedded within the field or parameter's type signature itself. The VolatileMethods class would be compiled to the following IL: .class public VolatileMethods { .method public instance void Method(int32* i) {} .method public instance void Method( int32 modreq( [mscorlib]System.Runtime.CompilerServices.IsVolatile)* i) {} } The modreq([mscorlib]System.Runtime.CompilerServices.IsVolatile) is the custom modifier. This adds a TypeDef or TypeRef token to the signature of the field or parameter, and even though they are mostly ignored by the CLR when it's executing the program, this allows methods and fields to be overloaded in ways that wouldn't be allowed using attributes. Because the modifiers are part of the signature, they need to be fully specified when calling such a method in IL: call instance void Method( int32 modreq([mscorlib]System.Runtime.CompilerServices.IsVolatile)*) There are two ways of applying modifiers; modreq specifies required modifiers (like IsVolatile), and modopt specifies optional modifiers that can be ignored by compilers (like IsLong or IsConst). The type specified as the modifier argument are simple placeholders; if you have a look at the definitions of IsVolatile and IsLong they are completely empty. They exist solely to be referenced by a modifier. Custom modifiers are used extensively by the C++ compiler to specify concepts that aren't expressible in IL, but still need to be taken into account when calling method overloads. C++ and C# That's all very well and good, but how does this affect C#? Well, the C++ compiler uses modreq(IsVolatile) to specify volatility on both method parameters and fields, as it would be slightly odd to have the same concept represented using a modifier or attribute depending on what it was applied to. Once you've compiled your C++ project, it can then be referenced and used from C#, so the C# compiler has to recognise the modreq(IsVolatile) custom modifier applied to fields, and vice versa. So, even though you can't overload fields or parameters with volatile using C#, volatile needs to be expressed using a custom modifier rather than an attribute to guarentee correct interoperability and behaviour with any C++ dlls that happen to come along. Next up: a closer look at attributes, and how certain attributes compile in unexpected ways.

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• Tuple - .NET 4.0 new feature

  - by nmarun

  Something I hit while playing with .net 4.0 – Tuple. MSDN says ‘Provides static methods for creating tuple objects.’ and the example below is: 1: var primes = Tuple.Create(2, 3, 5, 7, 11, 13, 17, 19); Honestly, I’m still not sure with what intention MS provided us with this feature, but the moment I saw this, I said to myself – I could use it instead of anonymous types. In order to put this to test, I created an XML file: 1: <Activities> 2: <Activity id="1" name="Learn Tuples" eventDate="4/1/2010" /> 3: <Activity id="2" name="Finish Project" eventDate="4/29/2010" /> 4: <Activity id="3" name="Attend Birthday" eventDate="4/17/2010" /> 5: <Activity id="4" name="Pay bills" eventDate="4/12/2010" /> 6: </Activities> In my console application, I read this file and let’s say I want to pull all the attributes of the node with id value of 1. Now, I have two ways – either define a class/struct that has these three properties and use in the LINQ query or create an anonymous type on the fly. But if we go the .NET 4.0 way, we can do this using Tuples as well. Let’s see the code I’ve written below: 1: var myActivity = (from activity in loaded.Descendants("Activity") 2:       where (int)activity.Attribute("id") == 1 3:       select Tuple.Create( 4: int.Parse(activity.Attribute("id").Value), 5: activity.Attribute("name").Value, 6: DateTime.Parse(activity.Attribute("eventDate").Value))).FirstOrDefault(); Line 3 is where I’m using a Tuple.Create to define my return type. There are three ‘items’ (that’s what the elements are called) in ‘myActivity’ type.. aptly declared as Item1, Item2, Item3. So there you go, you have another way of creating anonymous types. Just out of curiosity, wanted to see what the type actually looked like. So I did a: 1: Console.WriteLine(myActivity.GetType().FullName); and the return was (formatted for better readability): "System.Tuple`3[                            [System.Int32, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089],                            [System.String, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089],                            [System.DateTime, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]                           ]" The `3 specifies the number of items in the tuple. The other interesting thing about the tuple is that it knows the data type of the elements it’s holding. This is shown in the above snippet and also when you hover over myActivity.Item1, it shows the type as an int, Item2 as string and Item3 as DateTime. So you can safely do: 1: int id = myActivity.Item1; 2: string name = myActivity.Item2; 3: DateTime eventDate = myActivity.Item3; Wow.. all I can say is: HAIL 4.0.. HAIL 4.0.. HAIL 4.0

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• Calling Matlab's MLApp.MLAppClass.FEval from F#

  - by Matthew

  Matlab provides a COM interface that supports remote execution of arbitrary functions (and code snippets). In particular, it has an Feval method that calls a given Matlab function. The third parameter to this method, pvarArgOut, has COM type VARIANT*, and appears in the Visual Studio F# editor as an argument of type: pvarArgOut: byref<obj> The following code calls interp1, which in Matlab returns a matrix (i.e. 2D double array) result, as is normal for most Matlab functions. let matlab = new MLApp.MLAppClass() let vector_to_array2d (v : vector) = Array2D.init v.Length 1 (fun i j -> v.[i]) let interp1 (xs : vector) (ys : vector) (xi : vector) = let yi : obj = new obj() matlab.Feval("interp1", 1, ref yi, vector_to_array2d xs, vector_to_array2d ys, vector_to_array2d xi) yi :?> float[,] This code compiles fine, but when calling interp1, I get a COM exception: A first chance exception of type 'System.Reflection.TargetInvocationException' occurred in mscorlib.dll A first chance exception of type 'System.Runtime.InteropServices.COMException' occurred in mscorlib.dll An unhandled exception of type 'System.Runtime.InteropServices.COMException' occurred in mscorlib.dll Additional information: Invalid callee. (Exception from HRESULT: 0x80020010 (DISP_E_BADCALLEE)) I get the same error whether initialize yi with a new obj, a new Array2D, or null. How does F# translate VARIANT output arguments?

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• Visual Studio 2010 Can no longer build .NET v3.5

  - by Adam Driscoll

  I have a 2010 project that is targeting .NET v3.5. Inexplicably I can no longer build v3.5 projects. The project doesn't have ANY references added. It won't even let me add a reference to System.Core as it is added by the 'build system'. warning CS1685: The predefined type 'System.Func' is defined in multiple assemblies in the global alias; using definition from 'c:\Windows\Microsoft.NET\Framework\v4.0.30319\mscorlib.dll' IFilter.cs(82,49): error CS0433: The type 'System.Func' exists in both 'c:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\v3.5\System.Core.dll' and 'c:\Windows\Microsoft.NET\Framework\v4.0.30319\mscorlib.dll' Looks like something is grabbing onto 4.0 but I'm not quite sure how to fix it. Any one else run into this? Coworker had this same issue. It took a reinstall of Windows to correct the problem I've opened a bug on this one: https://connect.microsoft.com/VisualStudio/feedback/details/558245/warning-cs1685-when-compiling-a-v3-5-net-application-in-visual-studio-2010 If the compiler is set to verbose I see this: FrameworkPathOverride = C:\Windows\Microsoft.NET\Framework\v4.0.30319 which is defined as: Specifies the location of mscorlib.dll and microsoft.visualbasic.dll. This parameter is equivalent to the /sdkpath switch of the vbc.exe compiler. Some other interesting tidbits: I've created a new project all together and cannot build v3.5 at all. I can build 2.0, 3.0, 3.5 Client Profile, 4.0 and 4.0 Client Profile with no problem. VB.NET can build v3.5 but C# cannot. I've tried a reinstall of .NET 3.5, 4.0 and Visual Studio 2010 with no success. Visual Studio debug logs shown nothing interesting and Safe Mode does not work. Trying to avoid a Windows reinstall...

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• NHibernate + Remoting = ReflectionPermission Exception

  - by Pedro

  Hi all, We are dealing with a problem when using NHibernate with Remoting in a machine with full trust enviroment (actually that's our dev machine). The problem happens when whe try to send as a parameter an object previously retrieved from the server, that contains a NHibernate Proxy in one of the properties (a lazy one). As we are in the dev machine, there's no restriction in the trust level of the web app (it's set to Full) and, as a plus, we've configured NHibernate's and Castle's assemblies to full trust in CAS (even thinking that it'd not be necessary as the remoting app in IIS has the full trust level). Does anyone have any idea of what can be causing this exception? Stack trace below. InnerException: System.Security.SecurityException Message="Falha na solicitação da permissão de tipo 'System.Security.Permissions.ReflectionPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'." Source="mscorlib" GrantedSet="" PermissionState="<IPermission class=\"System.Security.Permissions.ReflectionPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089\"\r\nversion=\"1\"\r\nFlags=\"ReflectionEmit\"/>\r\n" RefusedSet="" Url="" StackTrace: em System.Security.CodeAccessSecurityEngine.Check(Object demand, StackCrawlMark& stackMark, Boolean isPermSet) em System.Security.CodeAccessPermission.Demand() em System.Reflection.Emit.AssemblyBuilder.DefineDynamicModuleInternalNoLock(String name, Boolean emitSymbolInfo, StackCrawlMark& stackMark) em System.Reflection.Emit.AssemblyBuilder.DefineDynamicModuleInternal(String name, Boolean emitSymbolInfo, StackCrawlMark& stackMark) em System.Reflection.Emit.AssemblyBuilder.DefineDynamicModule(String name, Boolean emitSymbolInfo) em Castle.DynamicProxy.ModuleScope.CreateModule(Boolean signStrongName) em Castle.DynamicProxy.ModuleScope.ObtainDynamicModuleWithWeakName() em Castle.DynamicProxy.ModuleScope.ObtainDynamicModule(Boolean isStrongNamed) em Castle.DynamicProxy.Generators.Emitters.ClassEmitter.CreateTypeBuilder(ModuleScope modulescope, String name, Type baseType, Type[] interfaces, TypeAttributes flags, Boolean forceUnsigned) em Castle.DynamicProxy.Generators.Emitters.ClassEmitter..ctor(ModuleScope modulescope, String name, Type baseType, Type[] interfaces, TypeAttributes flags, Boolean forceUnsigned) em Castle.DynamicProxy.Generators.Emitters.ClassEmitter..ctor(ModuleScope modulescope, String name, Type baseType, Type[] interfaces, TypeAttributes flags) em Castle.DynamicProxy.Generators.Emitters.ClassEmitter..ctor(ModuleScope modulescope, String name, Type baseType, Type[] interfaces) em Castle.DynamicProxy.Generators.BaseProxyGenerator.BuildClassEmitter(String typeName, Type parentType, Type[] interfaces) em Castle.DynamicProxy.Generators.BaseProxyGenerator.BuildClassEmitter(String typeName, Type parentType, IList interfaceList) em Castle.DynamicProxy.Generators.ClassProxyGenerator.GenerateCode(Type[] interfaces, ProxyGenerationOptions options) em Castle.DynamicProxy.Serialization.ProxyObjectReference.RecreateClassProxy() em Castle.DynamicProxy.Serialization.ProxyObjectReference.RecreateProxy() em Castle.DynamicProxy.Serialization.ProxyObjectReference..ctor(SerializationInfo info, StreamingContext context) Thank you in advance.

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• Installed SQL Server 2008 and now TFS is broken.

  - by johnnycakes

  Hi, My W2K3 server was running TFS 2008 SP1, SQL Server 2005 Development edition. I installed SQL Server 2008 Standard. I installed it while leaving SQL Server 2005 alone. Upgrading was not possible due to the differences in editions of the SQL Servers. Now TFS is broken. On a client computer, if I go Team - Connect to Team Foundation Server, I get this error: Team Foundation services are not available from server myserver. Technical information (for administrator): TF30059: Fatal error while initializing web service. So I head on over to my event viewer on the server. Under Application, I see one warning and two errors. First, the warning: Source: SQLSERVERAGENT Event ID: 208 Description: SQL Server Scheduled Job 'TfsWorkItemTracking Process Identities Job' (0x21F395C1F444CA499A63EBF05D717749) - Status: Failed - Invoked on: 2010-04-26 13:30:00 - Message: The job failed. The Job was invoked by Schedule 9 (ProcessIdentitiesSchedule). The last step to run was step 1 (Process Identities). Then the first error: Source: TFS Services Event ID: 3017 Description: TF53010: The following error has occurred in a Team Foundation component or extension: Date (UTC): 4/26/2010 5:36:29 PM Machine: myserver Application Domain: /LM/W3SVC/799623628/Root/Services-2-129167769888923968 Assembly: Microsoft.TeamFoundation.Server, Version=9.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a; v2.0.50727 Process Details: Process Name: w3wp Process Id: 4008 Thread Id: 224 Account name: DOMAIN\TFSService Detailed Message: TF53013: A crash report is being prepared for Microsoft. The following information is included in that report: System Values OS Version Information=Microsoft Windows NT 5.2.3790 Service Pack 2 CLR Version Information=2.0.50727.3053 Machine Name=myserver Processor Count=1 Working Set=34897920 System Directory=C:\WINDOWS\system32 Process Values ExitCode=0 Interactive=False Has Shutdown Started=False Process Environment Variables Path = C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\Program Files\Microsoft SQL Server\80\Tools\Binn\;C:\Program Files\Microsoft SQL Server\90\Tools\binn\;C:\Program Files\Microsoft SQL Server\90\DTS\Binn\;C:\Program Files\Microsoft SQL Server\90\Tools\Binn\VSShell\Common7\IDE\;C:\Program Files\Microsoft Visual Studio 8\Common7\IDE\PrivateAssemblies\;C:\Program Files\Microsoft SQL Server\100\Tools\Binn\;C:\Program Files\Microsoft SQL Server\100\DTS\Binn\;C:\Program Files\Microsoft SQL Server\100\Tools\Binn\VSShell\Common7\IDE\;C:\Program Files\Microsoft Visual Studio 9.0\Common7\IDE\PrivateAssemblies\;C:\WINDOWS\system32\WindowsPowerShell\v1.0 PATHEXT = .COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH;.PSC1 PROCESSOR_ARCHITECTURE = x86 SystemDrive = C: windir = C:\WINDOWS TMP = C:\WINDOWS\TEMP USERPROFILE = C:\Documents and Settings\Default User ProgramFiles = C:\Program Files FP_NO_HOST_CHECK = NO COMPUTERNAME = myserver APP_POOL_ID = Microsoft Team Foundation Server Application Pool NUMBER_OF_PROCESSORS = 1 PROCESSOR_IDENTIFIER = x86 Family 16 Model 5 Stepping 2, AuthenticAMD ClusterLog = C:\WINDOWS\Cluster\cluster.log SystemRoot = C:\WINDOWS ComSpec = C:\WINDOWS\system32\cmd.exe CommonProgramFiles = C:\Program Files\Common Files PROCESSOR_LEVEL = 16 PROCESSOR_REVISION = 0502 lib = C:\Program Files\SQLXML 4.0\bin\ ALLUSERSPROFILE = C:\Documents and Settings\All Users TEMP = C:\WINDOWS\TEMP OS = Windows_NT Request Details Url=http://myserver.domain.local:8080/Services/v1.0/Registration.asmx [method = POST] User Agent=Team Foundation (devenv.exe, 10.0.30128.1) Headers=Content-Length=390&Content-Type=text%2fxml%3b+charset%3dutf-8&Accept-Encoding=gzip%2cgzip%2cgzip&Accept-Language=en-US&Authorization=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%2f6h5U30CEXgoAEAAAAAAAAAAAAAAAAAAAAAAACQAyAEgAVABUAFAALwB0AGkAdABhAG4ALgBoAHkAcABlAHIAaQBvAG4ALgBsAG8AYwBhAGwAAAAAAAAAAAA%3d&Expect=100-continue&Host=myserver.domain.local%3a8080&User-Agent=Team+Foundation+(devenv.exe%2c+10.0.30128.1)&X-TFS-Version=1.0.0.0&X-TFS-Session=b7e7fdec-e7ee-48fc-92e8-537d1cd87ea4&SOAPAction=%22http%3a%2f%2fschemas.microsoft.com%2fTeamFoundation%2f2005%2f06%2fServices%2fRegistration%2f03%2fGetRegistrationEntries%22 Path=/Services/v1.0/Registration.asmx Local Request=False User Host Address=10.0.5.78 User=DOMAIN\Johnny [auth = NTLM] Application Provided Information Team Foundation Application Information Event Log Source = TFS Services Configured Team Foundation Server = http://myserver:8080 License Type = WorkgroupLicense Server Culture = en-US Activity Logging Name = Integration Component Name = CS Initialized = No Requests Processed = 0 Exception: TypeInitializationException Message: The type initializer for 'Microsoft.TeamFoundation.Server.IntegrationResourceComponent' threw an exception. Stack Trace: at Microsoft.TeamFoundation.Server.IntegrationResourceComponent.RegisterExceptions() at Microsoft.TeamFoundation.Server.Global.Initialize() at Microsoft.TeamFoundation.Server.TeamFoundationApplication.Init() Inner Exception Details Exception: ReflectionTypeLoadException Message: Unable to load one or more of the requested types. Retrieve the LoaderExceptions property for more information. Stack Trace: at System.Reflection.Module._GetTypesInternal(StackCrawlMark& stackMark) at System.Reflection.Assembly.GetTypes() at Microsoft.TeamFoundation.Server.SqlResourceComponent.RegisterExceptions(Assembly assembly) at Microsoft.TeamFoundation.Server.IntegrationResourceComponent.RegisterExceptions() at Microsoft.TeamFoundation.Server.IntegrationResourceComponent..cctor() Application Domain Information Assembly Name=mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 Assembly CLR Version=v2.0.50727 Assembly Version=2.0.0.0 Assembly Location=C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\mscorlib.dll Assembly File Version: File: C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\mscorlib.dll InternalName: mscorlib.dll OriginalFilename: mscorlib.dll FileVersion: 2.0.50727.3053 (netfxsp.050727-3000) FileDescription: Microsoft Common Language Runtime Class Library Product: Microsoft® .NET Framework ProductVersion: 2.0.50727.3053 Debug: False Patched: False PreRelease: False PrivateBuild: False SpecialBuild: False Language: English (United States) Assembly Name=System.Web, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a Assembly CLR Version=v2.0.50727 Assembly Version=2.0.0.0 Assembly Location=C:\WINDOWS\assembly\GAC_32\System.Web\2.0.0.0__b03f5f7f11d50a3a\System.Web.dll Assembly File Version: File: C:\WINDOWS\assembly\GAC_32\System.Web\2.0.0.0__b03f5f7f11d50a3a\System.Web.dll InternalName: System.Web.dll OriginalFilename: System.Web.dll FileVersion: 2.0.50727.3053 (netfxsp.050727-3000) FileDescription: System.Web.dll Product: Microsoft® .NET Framework ProductVersion: 2.0.50727.3053 Debug: False Patched: False PreRelease: False PrivateBuild: False SpecialBuild: False Language: English (United States) Assembly Name=System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 Assembly CLR Version=v2.0.50727 Assembly Version=2.0.0.0 Assembly Location=C:\WINDOWS\assembly\GAC_MSIL\System\2.0.0.0__b77a5c561934e089\System.dll Assembly File Version: File: C:\WINDOWS\assembly\GAC_MSIL\System\2.0.0.0__b77a5c561934e089\System.dll InternalName: System.dll OriginalFilename: System.dll FileVersion: 2.0.50727.3053 (netfxsp.050727-3000) FileDescription: .NET Framework Product: Microsoft® .NET Framework ProductVersion: 2.0.50727.3053 Debug: False Patched: False PreRelease: False PrivateBuild: False SpecialBuild: False Language: English (United States) Assembly Name=System.Xml, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 Assembly CLR Version=v2.0.50727 Assembly Version=2.0.0.0 Assembly Location=C:\WINDOWS\assembly\GAC_MSIL\System.Xml\2.0.0.0__b77a5c561934e089\System.Xml.dll Assembly File Version: File: C:\WINDOWS\assembly\GAC_MSIL\System.Xml\2.0.0.0__b77a5c561934e089\System.Xml.dll InternalName: System.Xml.dll OriginalFilename: System.Xml.dll FileVersion: 2.0.50727.3053 (netfxsp.050727-3000) FileDescription: .NET Framework Product: Microsoft® .NET Framework ProductVersion: 2.0.50727.3053 Debug: False Patched: False PreRelease: False PrivateBuild: False SpecialBuild: False Language: English (United States) Assembly Name=System.Configuration, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a Assembly CLR Version=v2.0.50727 Assembly Version=2.0.0.0 Assembly Location=C:\WINDOWS\assembly\GAC_MSIL\System.Configuration\2.0.0.0__b03f5f7f11d50a3a\System.Configuration.dll Assembly File Version: File: C:\WINDOWS\assembly\GAC_MSIL\System.Configuration\2.0.0.0__b03f5f7f11d50a3a\System.Configuration.dll InternalName: System.Configuration.dll OriginalFilename: System.Configuration.dll FileVersion: 2.0.50727.3053 (netfxsp.050727-3000) FileDescription: System.Configuration.dll Product: Microsoft® .NET Framework ProductVersion: 2.0.50727.3053 Debug: False Patched: False PreRelease: False PrivateBuild: False SpecialBuild: False Language: English (United States) Assembly Name=Microsoft.JScript, Version=8.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a Assembly CLR Version=v2.0.50727 Assembly Version=8.0.0.0 Assembly Location=C:\WINDOWS\assembly\GAC_MSIL\Microsoft.JScript\8.0.0.0__b03f5f7f11d50a3a\Microsoft.JScript.dll Assembly File Version: File: C:\WINDOWS\assembly\GAC_MSIL\Microsoft.JScript\8.0.0.0__b03f5f7f11d50a3a\Microsoft.JScript.dll InternalName: Microsoft.JScript.dll OriginalFilename: Microsoft.JScript.dll FileVersion: 8.0.50727.3053 FileDescription: Microsoft.JScript.dll Product: Microsoft (R) Visual Studio (R) 2005 ProductVersion: 8.0.50727.3053 Debug: False Patched: False PreRelease: False PrivateBuild: False SpecialBuild: False Language: Language Neutral Assembly Name=App_global.asax.4nq_g1xi, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null Assembly CLR Version=v2.0.50727 Assembly Version=0.0.0.0 Assembly Location=C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\services\87e24ff8\921625fe\App_global.asax.4nq_g1xi.dll Assembly File Version: File: C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\services\87e24ff8\921625fe\App_global.asax.4nq_g1xi.dll InternalName: App_global.asax.4nq_g1xi.dll OriginalFilename: App_global.asax.4nq_g1xi.dll FileVersion: 0.0.0.0 FileDescription: Product: ProductVersion: 0.0.0.0 Debug: False Patched: False PreRelease: False PrivateBuild: False SpecialBuild: False Language: Language Neutral Assembly Name=Microsoft.TeamFoundation.Server, Version=9.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a Assembly CLR Version=v2.0.50727 Assembly Version=9.0.0.0 Assembly Location=C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\services\87e24ff8\921625fe\assembly\dl3\9051eeb6\603ea9a2_d822c801\Microsoft.TeamFoundation.Server.DLL Assembly File Version: File: C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\services\87e24ff8\921625fe\assembly\dl3\9051eeb6\603ea9a2_d822c801\Microsoft.TeamFoundation.Server.DLL InternalName: Microsoft.TeamFoundation.Server.dll OriginalFilename: Microsoft.TeamFoundation.Server.dll FileVersion: 9.0.21022.8 FileDescription: Microsoft.TeamFoundation.Server.dll Product: Microsoft (R) Visual Studio (R) 2008 ProductVersion: 9.0.21022.8 Debug: False Patched: False PreRelease: False PrivateBuild: False SpecialBuild: False Language: Language Neutral Assembly Name=Microsoft.TeamFoundation.Common, Version=9.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a Assembly CLR Version=v2.0.50727 Assembly Version=9.0.0.0 Assembly Location=C:\WINDOWS\assembly\GAC_32\Microsoft.TeamFoundation.Common\9.0.0.0__b03f5f7f11d50a3a\Microsoft.TeamFoundation.Common.dll Assembly File Version: File: C:\WINDOWS\assembly\GAC_32\Microsoft.TeamFoundation.Common\9.0.0.0__b03f5f7f11d50a3a\Microsoft.TeamFoundation.Common.dll InternalName: Microsoft.TeamFoundation.Common.dll OriginalFilename: Microsoft.TeamFoundation.Common.dll FileVersion: 9.0.30729.1 FileDescription: Microsoft.TeamFoundation.Common.dll Product: Microsoft (R) Visual Studio (R) 2008 ProductVersion: 9.0.30729.1 Debug: False Patched: False PreRelease: False PrivateBuild: False SpecialBuild: False Language: Language Neutral Assembly Name=Microsoft.TeamFoundation, Version=9.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a Assembly CLR Version=v2.0.50727 Assembly Version=9.0.0.0 Assembly Location=C:\WINDOWS\assembly\GAC_32\Microsoft.TeamFoundation\9.0.0.0__b03f5f7f11d50a3a\Microsoft.TeamFoundation.dll Assembly File Version: File: C:\WINDOWS\assembly\GAC_32\Microsoft.TeamFoundation\9.0.0.0__b03f5f7f11d50a3a\Microsoft.TeamFoundation.dll InternalName: Microsoft.TeamFoundation.dll OriginalFilename: Microsoft.TeamFoundation.dll FileVersion: 9.0.30729.1 FileDescription: Microsoft.TeamFoundation.dll Product: Microsoft (R) Visual Studio (R) 2008 ProductVersion: 9.0.30729.1 Debug: False Patched: False PreRelease: False PrivateBuild: False SpecialBuild: False Language: Language Neutral Assembly Name=System.Security, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a Assembly CLR Version=v2.0.50727 Assembly Version=2.0.0.0 Assembly Location=C:\WINDOWS\assembly\GAC_MSIL\System.Security\2.0.0.0__b03f5f7f11d50a3a\System.Security.dll Assembly File Version: File: C:\WINDOWS\assembly\GAC_MSIL\System.Security\2.0.0.0__b03f5f7f11d50a3a\System.Security.dll InternalName: System.Security.dll OriginalFilename: System.Security.dll FileVersion: 2.0.50727.3053 (netfxsp.050727-3000) FileDescription: System.Security.dll Product: Microsoft® .NET Framework ProductVersion: 2.0.50727.3053 Debug: False Patched: False PreRelease: False PrivateBuild: False SpecialBuild: False Language: English (United States) Assembly Name=System.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 Assembly CLR Version=v2.0.50727 Assembly Version=2.0.0.0 Assembly Location=C:\WINDOWS\assembly\GAC_32\System.Data\2.0.0.0__b77a5c561934e089\System.Data.dll Assembly File Version: File: C:\WINDOWS\assembly\GAC_32\System.Data\2.0.0.0__b77a5c561934e089\System.Data.dll InternalName: system.data.dll OriginalFilename: system.data.dll FileVersion: 2.0.50727.3053 (netfxsp.050727-3000) FileDescription: .NET Framework Product: Microsoft® .NET Framework ProductVersion: 2.0.50727.3053 Debug: False Patched: False PreRelease: False PrivateBuild: False SpecialBuild: False Language: English (United States) Assembly Name=Microsoft.TeamFoundation.Common.Library, Version=9.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a Assembly CLR Version=v2.0.50727 Assembly Version=9.0.0.0 Assembly Location=C:\WINDOWS\assembly\GAC_32\Microsoft.TeamFoundation.Common.Library\9.0.0.0__b03f5f7f11d50a3a\Microsoft.TeamFoundation.Common.Library.dll Assembly File Version: File: C:\WINDOWS\assembly\GAC_32\Microsoft.TeamFoundation.Common.Library\9.0.0.0__b03f5f7f11d50a3a\Microsoft.TeamFoundation.Common.Library.dll InternalName: Microsoft.TeamFoundation.Common.Library.dll OriginalFilename: Microsoft.TeamFoundation.Common.Library.dll FileVersion: 9.0.30729.1 FileDescription: Microsoft.TeamFoundation.Common.Library.dll Product: Microsoft (R) Visual Studio (R) 2008 ProductVersion: 9.0.30729.1 Debug: False Patched: False PreRelease: False PrivateBuild: False SpecialBuild: False Language: Language Neutral Assembly Name=System.Web.Mobile, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a Assembly CLR Version=v2.0.50727 Assembly Version=2.0.0.0 Assembly Location=C:\WINDOWS\assembly\GAC_MSIL\System.Web.Mobile\2.0.0.0__b03f5f7f11d50a3a\System.Web.Mobile.dll As And finally, the second error: Source: Team Foundation Error Reporting Event ID: 5000 Description: EventType teamfoundationue, P1 1.0.0.0, P2 tfs, P3 9.0.30729.1, P4 9.0.0.0, P5 general, P6 typeinitializationexcept, P7 4758b22a940fe6d9, P8 d15c14bb, P9 NIL, P10 NIL. Any ideas? Thanks.

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• FormatException with IsolatedStorageSettings

  - by Jurgen Camilleri

  I have a problem when serializing a Dictionary<string,Person> to IsolatedStorageSettings. I'm doing the following: public Dictionary<string, Person> Names = new Dictionary<string, Person>(); if (!IsolatedStorageSettings.ApplicationSettings.Contains("Names")) { //Add to dictionary Names.Add("key", new Person(false, new System.Device.Location.GeoCoordinate(0, 0), new List<GeoCoordinate>() { new GeoCoordinate(35.8974, 14.5099), new GeoCoordinate(35.8974, 14.5099), new GeoCoordinate(35.8973, 14.5100), new GeoCoordinate(35.8973, 14.5099) })); //Serialize dictionary to IsolatedStorage IsolatedStorageSettings.ApplicationSettings.Add("Names", Names); IsolatedStorageSettings.ApplicationSettings.Save(); } Here is my Person class: [DataContract] public class Person { [DataMember] public bool Unlocked { get; set; } [DataMember] public GeoCoordinate Location { get; set; } [DataMember] public List<GeoCoordinate> Bounds { get; set; } public Person(bool unlocked, GeoCoordinate location, List<GeoCoordinate> bounds) { this.Unlocked = unlocked; this.Location = location; this.Bounds = bounds; } } The code works the first time, however on the second run I get a System.FormatException at the if condition. Any help would be highly appreciated thanks. P.S.: I tried an IsolatedStorageSettings.ApplicationSettings.Clear() but the call to Clear also gives a FormatException. I have found something new...the exception occurs twenty-five times, or at least that's how many times it shows up in the Output window. However after that, the data is deserialized perfectly. Should I be worried about the exceptions if they do not stop the execution of the program? EDIT: Here's the call stack when the exception occurs: mscorlib.dll!double.Parse(string s, System.Globalization.NumberStyles style, System.IFormatProvider provider) + 0x17 bytes System.Xml.dll!System.Xml.XmlConvert.ToDouble(string s) + 0x4b bytes System.Xml.dll!System.Xml.XmlReader.ReadContentAsDouble() + 0x1f bytes System.Runtime.Serialization.dll!System.Xml.XmlDictionaryReader.XmlWrappedReader.ReadContentAsDouble() + 0xb bytes System.Runtime.Serialization.dll!System.Xml.XmlDictionaryReader.ReadElementContentAsDouble() + 0x35 bytes System.Runtime.Serialization.dll!System.Runtime.Serialization.XmlReaderDelegator.ReadElementContentAsDouble() + 0x19 bytes mscorlib.dll!System.Reflection.RuntimeMethodInfo.InternalInvoke(System.Reflection.RuntimeMethodInfo rtmi, object obj, System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, object parameters, System.Globalization.CultureInfo culture, bool isBinderDefault, System.Reflection.Assembly caller, bool verifyAccess, ref System.Threading.StackCrawlMark stackMark) mscorlib.dll!System.Reflection.RuntimeMethodInfo.InternalInvoke(object obj, System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, object[] parameters, System.Globalization.CultureInfo culture, ref System.Threading.StackCrawlMark stackMark) + 0x168 bytes mscorlib.dll!System.Reflection.MethodBase.Invoke(object obj, object[] parameters) + 0xa bytes System.Runtime.Serialization.dll!System.Runtime.Serialization.XmlFormatReader.ReadValue(System.Type type, string name, string ns, System.Runtime.Serialization.XmlObjectSerializerReadContext context, System.Runtime.Serialization.XmlReaderDelegator xmlReader) + 0x138 bytes System.Runtime.Serialization.dll!System.Runtime.Serialization.XmlFormatReader.ReadMemberAtMemberIndex(System.Runtime.Serialization.ClassDataContract classContract, ref object objectLocal, System.Runtime.Serialization.DeserializedObject desObj) + 0xc4 bytes System.Runtime.Serialization.dll!System.Runtime.Serialization.XmlFormatReader.ReadClass(System.Runtime.Serialization.DeserializedObject desObj, System.Runtime.Serialization.ClassDataContract classContract, int membersRead) + 0xf3 bytes System.Runtime.Serialization.dll!System.Runtime.Serialization.XmlFormatReader.Deserialize(System.Runtime.Serialization.XmlObjectSerializerReadContext context) + 0x36 bytes System.Runtime.Serialization.dll!System.Runtime.Serialization.XmlFormatReader.InitializeCallStack(System.Runtime.Serialization.DataContract clContract, System.Runtime.Serialization.XmlReaderDelegator xmlReaderDelegator, System.Runtime.Serialization.XmlObjectSerializerReadContext xmlObjContext, System.Xml.XmlDictionaryString[] memberNamesColl, System.Xml.XmlDictionaryString[] memberNamespacesColl) + 0x77 bytes System.Runtime.Serialization.dll!System.Runtime.Serialization.CollectionDataContract.ReadXmlValue(System.Runtime.Serialization.XmlReaderDelegator xmlReader, System.Runtime.Serialization.XmlObjectSerializerReadContext context) + 0x5d bytes System.Runtime.Serialization.dll!System.Runtime.Serialization.XmlObjectSerializerReadContext.ReadDataContractValue(System.Runtime.Serialization.DataContract dataContract, System.Runtime.Serialization.XmlReaderDelegator reader) + 0x3 bytes System.Runtime.Serialization.dll!System.Runtime.Serialization.XmlObjectSerializerReadContext.InternalDeserialize(System.Runtime.Serialization.XmlReaderDelegator reader, string name, string ns, ref System.Runtime.Serialization.DataContract dataContract) + 0x10e bytes System.Runtime.Serialization.dll!System.Runtime.Serialization.XmlObjectSerializerReadContext.InternalDeserialize(System.Runtime.Serialization.XmlReaderDelegator xmlReader, System.Type declaredType, System.Runtime.Serialization.DataContract dataContract, string name, string ns) + 0xb bytes System.Runtime.Serialization.dll!System.Runtime.Serialization.DataContractSerializer.InternalReadObject(System.Runtime.Serialization.XmlReaderDelegator xmlReader, bool verifyObjectName) + 0x124 bytes System.Runtime.Serialization.dll!System.Runtime.Serialization.XmlObjectSerializer.ReadObjectHandleExceptions(System.Runtime.Serialization.XmlReaderDelegator reader, bool verifyObjectName) + 0xe bytes System.Runtime.Serialization.dll!System.Runtime.Serialization.XmlObjectSerializer.ReadObject(System.Xml.XmlDictionaryReader reader) + 0x7 bytes System.Runtime.Serialization.dll!System.Runtime.Serialization.XmlObjectSerializer.ReadObject(System.IO.Stream stream) + 0x17 bytes System.Windows.dll!System.IO.IsolatedStorage.IsolatedStorageSettings.Reload() + 0xa3 bytes System.Windows.dll!System.IO.IsolatedStorage.IsolatedStorageSettings.IsolatedStorageSettings(bool useSiteSettings) + 0x20 bytes System.Windows.dll!System.IO.IsolatedStorage.IsolatedStorageSettings.ApplicationSettings.get() + 0xd bytes

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• WP7: play MP3 using Media with phonegap/Cordova

  - by Loda

  My problem: I use the Media Class from Cordova. The MP3 file is only played once (the first time). Code: Add this code to the Cordova Starter project to reproduce my problem: var playCounter = 0; function playMP3(){ console.log("playMP3() counter " + playCounter); var my_media = new Media("app/www/test.mp3");//ressource buildAction == content my_media.play(); playCounter++; } [...] <p onclick="playMP3();">Click to Play MP3</p> VS output: [...] GapBrowser_Navigated :: /app/www/index.html 'UI Task' (Managed): Loaded 'System.ServiceModel.Web.dll' 'UI Task' (Managed): Loaded 'System.ServiceModel.dll' Log:"onDeviceReady. You should see this message in Visual Studio's output window." 'UI Task' (Managed): Loaded 'Microsoft.Xna.Framework.dll' Log:"playMP3() counter 0" 'UI Task' (Managed): Loaded 'System.SR.dll' Log:"media on status :: {\"id\": \"fa123123-bc55-a266-f447-8881bd32e2aa\", \"msg\": 1, \"value\": 1}" A first chance exception of type 'System.ArgumentException' occurred in mscorlib.dll Log:"media on status :: {\"id\": \"fa123123-bc55-a266-f447-8881bd32e2aa\", \"msg\": 1, \"value\": 2}" Log:"media on status :: {\"id\": \"fa123123-bc55-a266-f447-8881bd32e2aa\", \"msg\": 2, \"value\": 2.141}" Log:"media on status :: {\"id\": \"fa123123-bc55-a266-f447-8881bd32e2aa\", \"msg\": 1, \"value\": 4}" Log:"playMP3() counter 1" A first chance exception of type 'System.ArgumentException' occurred in mscorlib.dll A first chance exception of type 'System.IO.IOException' occurred in mscorlib.dll A first chance exception of type 'System.IO.IsolatedStorage.IsolatedStorageException' occurred in mscorlib.dll Log:"media on status :: {\"id\": \"2de3388c-bbb6-d896-9e27-660f1402bc2a\", \"msg\": 9, \"value\": 5}" My Config: cordova-1.6.1.js Lumia 800 WP 7.5 (7.10.7740.16) WorkAround (kind of): Desactivate the app (turn off the screen) reactivate the app (turn on the screen) - you get one more shot. Any help is welcome as I am blocked on this since may days and I found no usefull information anywhere. Also, Can you tell me if this code work on your config ? . . . Update: add a demo code using a global var. Keeping the instance alive. result The test2.mp3 is played and can replay fine. the test.mp3 is not played at all. It is the first file you play that will work. Code function onDeviceReady() { document.getElementById("welcomeMsg").innerHTML += "Cordova is ready! version=" + window.device.cordova; console.log("onDeviceReady. You should see this message in Visual Studio's output window."); my_media = new Media("app/www/test.mp3");//ressource buildAction == content my_media2 = new Media("app/www/test2.mp3");//ressource buildAction == content } var playCounter = 0; var my_media = null; function playMP3(){ console.log("playMP3() counter " + playCounter); my_media.play(); playCounter++; } var my_media2 = null; function playMP32(){ console.log("playMP32() counter " + playCounter); my_media2.play(); playCounter++; } </script> [...] <p onclick="playMP3();">Click to Play MP3</p> <p onclick="playMP32();">Click to Play MP3 2</p> VS output: Log:"onDeviceReady. You should see this message in Visual Studio's output window." INFO: startPlayingAudio could not find mediaPlayer for 71888b14-86fe-4769-95c9-a9bb05d5555b Log:"playMP32() counter 0" INFO: startPlayingAudio could not find mediaPlayer for 71888b14-86fe-4769-95c9-a9bb05d5555b Log:"playMP32() counter 1" Log:"playMP3() counter 2" INFO: startPlayingAudio could not find mediaPlayer for b60fa266-d105-a295-a5be-fa2c6b824bc1 A first chance exception of type 'System.ArgumentException' occurred in System.Windows.dll Error: El parámetro es incorrecto. Log:"playMP32() counter 3" INFO: startPlayingAudio could not find mediaPlayer for 71888b14-86fe-4769-95c9-a9bb05d5555b Can anybody reproduce this ? link to bug report: https://issues.apache.org/jira/browse/CB-941

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• Using custom DataContractResolver in WCF, to transport inheritance trees involving generics

  - by Benson

  I've got a WCF service, in which there are operations which accept a non-generic base class as parameter. [DataContract] class Foo { ... } This base class is in turn inherited, by such generics classes as [DataContract] class Bar : Foo { ... } To get this to work, I'd previously have to register KnownTypes for the Foo class, and have these include all possible variations of Bar (such as Bar, Bar and even Bar). With the DataContractResolver in .NET 4, however, I should be able to build a resolver which properly stores (and restores) the classes. My questions: Are DataContractResolvers typically only used on the service side, and not by the client? If so, how would that be useful in this scenario? Am I wrong to write a DataContractResolver which serializes the fully qualified type name of a generic type, such as Bar1[List1[string, mscorlib], mscorlib] ? Couldn't the same DataContractResolver on the client side restore these types?

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• CS1685 Warning causes a CS0433 error when targeting 3.5 in VS2010

  - by Adam Driscoll

  I have a 2010 project that is targeting .NET v3.5. It was working fine until I started to mess with configurations a bit and now I cannot figure out what I'm doing wrong. The project doesn't have ANY references added. It won't even let me add a reference to System.Core as it is added by the 'build system'. warning CS1685: The predefined type 'System.Func' is defined in multiple assemblies in the global alias; using definition from 'c:\Windows\Microsoft.NET\Framework\v4.0.30319\mscorlib.dll' IFilter.cs(82,49): error CS0433: The type 'System.Func' exists in both 'c:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\v3.5\System.Core.dll' and 'c:\Windows\Microsoft.NET\Framework\v4.0.30319\mscorlib.dll' Looks like something is grabbing onto 4.0 but I'm not quite sure how to fix it. Any one else run into this?

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• Inheritance - Could not initialize proxy - no Session.

  - by Ninu

  hello....i'm newbie developer.... i really need help at now... i just get started with Nhibernate thing at .Net... when i learn Inheritance and try it...it makes me confusing...why i get error like this : Initializing[AP.Core.Domain.AccountPayable.APInvoice#API03/04/2010/001]-Could not initialize proxy - no Session. this is my xml : <class xmlns="urn:nhibernate-mapping-2.2" mutable="true" name="AP.Core.Domain.AccountPayable.APAdjustment, AP.Core, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null" table="APAdjustment"> <id name="AdjustmentNumber" type="System.String, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"> <column name="AdjustmentNumber" length="17" /> <generator class="assigned" /> </id> <property name="Amount" type="System.Decimal, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"> <column name="Amount" /> </property> <property name="TransactionDate" type="System.DateTime, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"> <column name="TransactionDate" /> </property> <many-to-one class="AP.Core.Domain.AccountPayable.APInvoice, AP.Core, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null" lazy="proxy" name="PurchaseInvoice"> <column name="PurchaseInvoice_id" not-null="true" /> </many-to-one> <joined-subclass name="AP.Core.Domain.AccountPayable.APCreditAdjustment, AP.Core, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null" lazy="true" table="APCreditAdjustment"> <key> <column name="APAdjustment_id" /> </key> </joined-subclass> </class> </hibernate-mapping> and this is inheritance Class : Parent Class -- public class APAdjustment { #region :FIELD private string adjustmentNumber; private decimal amount; private DateTime transactionDate; private APInvoice purchaseInvoice; Child Class -- public class APCreditAdjustment : APAdjustment { public APCreditAdjustment(){ and this my Data access : public IList<APAdjustment> GetByNameAll() { ICriteria criteria = Nhibernatesession.CreateCriteria(typeof(APAdjustment)); return criteria.List<APAdjustment>() ; } My Problem is : when i load data with gridview ...it works...but i change the property to autogenerate="true" ...i missing "PurchaseInvoice" field...and i change to bind manually,and it works..when i edit that gridview ...i get this error... Initializing[AP.Core.Domain.AccountPayable.APInvoice#API03/04/2010/001]-Could not initialize proxy - no Session so then i change my xml ...lazy="no-proxy" ...it still work...but when edit again ...i get error again ..and i do "Comment out the selected lines" to my association "Many-to-one"...i really works it..but that's not i want... CAN ANYBODY HELP ME...??Plizz...:( Note : I almost forget it ,i use fluent hibernate to generate to database.From fluent Hibernate ..i put *.xml file ...so i'm work to xml NHibernate...not fluent hibernate thing...:)

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