TargetParameterCountException

[kcabral817]

Could someone assist with providing some insight to TargetParameterCountException? After upgrading to 5.2, all of my Child_Fetch() methods are now failing with TargetParameterCountException. I don't pass any parameters into the child_fetch, I use them to initialize things like address and telephone records that I use in data grids.

Here is the error that I'm getting.

Csla.DataPortalException
  HResult=0x80131500
  Message=ChildDataPortal.Fetch failed on the server
  Source=Csla
  StackTrace:
   at Csla.Reflection.ServiceProviderMethodCaller.FindDataPortalMethod[T](Type targetType, Object[] criteria, Boolean throwOnError)
   at Csla.Reflection.ServiceProviderMethodCaller.FindDataPortalMethod[T](Object target, Object[] criteria)
   at Csla.Reflection.LateBoundObject.<CallMethodTryAsyncDI>d__12`1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Csla.Server.DataPortalTarget.<FetchChildAsync>d__18.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Csla.Server.ChildDataPortal.<Fetch>d__9.MoveNext()
   at Csla.Server.ChildDataPortal.Fetch(Type objectType)
   at Csla.DataPortal.FetchChild[T]()
   at ApplicationConsole.Program.Main(String[] args) in 
Program.cs:line 132

Inner Exception 1:
TargetParameterCountException: SI.AddressInfoPersist.[FetchChild]()

Inner Exception 2:
TargetParameterCountException: SI.Business.CommonLibrary.BO.InjectableBusinessBase`1[[SI.Amicus.Business.AddressLibrary.BO.AddressInfoPersist, SI.Business.AddressLibrary, Version=1.0.7457.897, Culture=neutral, PublicKeyToken=null]].[FetchChild]()

Inner Exception 3:
TargetParameterCountException: Csla.BusinessBase`1[[SI.Business.AddressLibrary.BO.AddressInfoPersist, SI.Business.AddressLibrary, Version=1.0.7457.897, Culture=neutral, PublicKeyToken=null]].[FetchChild]()

Inner Exception 4:
TargetParameterCountException: Csla.Core.BusinessBase.[FetchChild]()

Inner Exception 5:
TargetParameterCountException: Csla.Core.UndoableBase.[FetchChild]()

Inner Exception 6:
TargetParameterCountException: Csla.Core.BindableBase.[FetchChild]()

Inner Exception 7:
TargetParameterCountException: Csla.Core.MobileObject.[FetchChild]()

Inner Exception 8:
TargetParameterCountException: System.Object.[FetchChild]()

[kcabral817]

I have tried annotating the child method with [FetchChild] but no luck.

[kcabral817]

So the issue for me was the use of FetchChild which I replaced with Create. All is good with that.

[rockfordlhotka]

Does your parent object have code that calls data portal to do a create or a fetch? What is the parent class code?

[kcabral817]

I have a serializable class that has the properties and rules with a ObjectFactory line at the top. All of my data portal creates, fetches, updates and deletes are in the factory class. Is this the information you're looking for?