c# Programming Glossary: delegate
Cross-thread operation not valid: Control accessed from a thread other than the thread it was created on http://stackoverflow.com/questions/142003/cross-thread-operation-not-valid-control-accessed-from-a-thread-other-than-the textbox1.InvokeRequired textbox1.Invoke new MethodInvoker delegate name textbox1.text if name MyName do whatever Do your serious.. done all the processing this.Invoke new MethodInvoker delegate load the control with the appropriate data return share..
Access to Modified Closure http://stackoverflow.com/questions/235455/access-to-modified-closure Assembly.GetExecutingAssembly .GetManifestResourceNames delegate string name return name.Equals files i return Assembly.GetExecutingAssembly.. this case it's okay since you are actually executing the delegate within the loop. If you were saving the delegate and using it.. the delegate within the loop. If you were saving the delegate and using it later however you'd find that all of the delegates..
Automating the InvokeRequired code pattern http://stackoverflow.com/questions/2367718/automating-the-invokerequired-code-pattern There is no need to pass the control as parameter to the delegate. C# automatically creates a closure . UPDATE According to several..
How is Generic Covariance & Contra-variance Implemented in C# 4.0? http://stackoverflow.com/questions/245607/how-is-generic-covariance-contra-variance-implemented-in-c-sharp-4-0 will. Firstly it will only be supported for interfaces and delegates. Secondly it requires the author of the interface delegate.. Secondly it requires the author of the interface delegate to decorate the type parameters as in for contravariance or.. examples for using interfaces but it's easy with a delegate. Consider Action T that just represents a method which takes..
Windows service and timer http://stackoverflow.com/questions/246697/windows-service-and-timer statusChecker new StatusChecker 10 Create the delegate that invokes methods for the timer. TimerCallback timerDelegate.. statusChecker.CheckStatus Create a timer that signals the delegate to invoke CheckStatus after one second and every 1 4 second.. 0 maxCount count This method is called by the timer delegate. public void CheckStatus Object stateInfo AutoResetEvent autoEvent..
What are the correct version numbers for C#? http://stackoverflow.com/questions/247621/what-are-the-correct-version-numbers-for-c April 2010 . Major new features late binding dynamic delegate and interface generic variance more COM support named arguments..
Implement C# Generic Timeout http://stackoverflow.com/questions/299198/implement-c-sharp-generic-timeout a generic way to have a single line or anonymous delegate of code execute with a timeout. TemperamentalClass tc new TemperamentalClass.. be aborted. I accomplished this with the use of a wrapped delegate that passes out the thread to kill into a local variable in..
Split List into Sublists with LINQ http://stackoverflow.com/questions/419019/split-list-into-sublists-with-linq
What is the best workaround for the WCF client `using` block issue? http://stackoverflow.com/questions/573872/what-is-the-best-workaround-for-the-wcf-client-using-block-issue as this one on IServiceOriented . You start with public delegate void UseServiceDelegate T T proxy public static class Service..
C# Events and Thread Safety http://stackoverflow.com/questions/786383/c-sharp-events-and-thread-safety check for null and where you fire the event Copy the event delegate before checking calling EventHandler copy TheEvent if copy null.. The actual sequence might be this mixture Copy the event delegate before checking calling EventHandler copy TheEvent Better delist.. all. And isn't it a lot simpler to just assign the empty delegate on the member declaration so that you never need to check for..
Making Entity Class Closed for Changes http://stackoverflow.com/questions/11425993/making-entity-class-closed-for-changes Injection using Unity C# Strategy Design Pattern by Delegate vs OOP How to use the Strategy Pattern with C# Inheritance with..
How to wait for thread to finish with .NET? http://stackoverflow.com/questions/1584062/how-to-wait-for-thread-to-finish-with-net a very clear description of your options with this method. Delegate Events on the wrong thread The event delegate way of doing things.. back right at the top of the HandleThreadDone methods Delegate example if InvokeRequired Invoke new Action HandleThreadDone..
Compiler Ambiguous invocation error - anonymous method and method group with Func<> or Action http://stackoverflow.com/questions/2057146/compiler-ambiguous-invocation-error-anonymous-method-and-method-group-with-fun classWithSimpleMethods new ClassWithSimpleMethods ClassWithDelegateMethods classWithDelegateMethods new ClassWithDelegateMethods.. ClassWithSimpleMethods ClassWithDelegateMethods classWithDelegateMethods new ClassWithDelegateMethods These both compile lambda.. classWithDelegateMethods new ClassWithDelegateMethods These both compile lambda syntax classWithDelegateMethods.Method..
Anonymous method in Invoke call http://stackoverflow.com/questions/253138/anonymous-method-in-invoke-call error Cannot convert anonymous method to type 'System.Delegate' because it is not a delegate type Any help is appreciated .. improve this question Because Invoke BeginInvoke accepts Delegate rather than a typed delegate you need to tell the compiler what.. Invoke this Control control Action action control.Invoke Delegate action then this.Invoke delegate this.Text hi or simce we are..
Is it possible to “steal” an event handler from one control and give it to another? http://stackoverflow.com/questions/293007/is-it-possible-to-steal-an-event-handler-from-one-control-and-give-it-to-anoth events EventHandlerList eventsProp.GetValue button1 null Delegate click events secret Remove it from button1 add it to button2..
How would I run an async Task<T> method synchronously? http://stackoverflow.com/questions/5095183/how-would-i-run-an-async-taskt-method-synchronously System.Windows.Threading.ExceptionWrapper.InternalRealCall Delegate callback Object args Int32 numArgs at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen.. Object source Delegate method Object args Int32 numArgs Delegate catchHandler at System.Windows.Threading.DispatcherOperation.InvokeImpl.. Object source Delegate method Object args Int32 numArgs Delegate catchHandler at System.Windows.Threading.DispatcherOperation.InvokeImpl..
C#: Difference between ' += anEvent' and ' += new EventHandler(anEvent)' http://stackoverflow.com/questions/550703/c-difference-between-anevent-and-new-eventhandleranevent In the second example you explicitly define the delegate. Delegate inference was added in C# 2.0. So for C# 1.0 projects second..
Static Generic Class as Dictionary http://stackoverflow.com/questions/686630/static-generic-class-as-dictionary static class MethodGen static readonly Dictionary Type Delegate methods new Dictionary Type Delegate public static Action T.. Dictionary Type Delegate methods new Dictionary Type Delegate public static Action T GetMethod T In production code this.. T In production code this would ReaderWriterLock Delegate method if methods.TryGetValue typeof T out method methods.Add..
Event Bubbling and MVP: ASP.NET http://stackoverflow.com/questions/8851933/event-bubbling-and-mvp-asp-net has only set method private CurrentTimePresenter presenter Delegate public delegate void OnAddDaysClickedDelegate string strValue.. presenter Delegate public delegate void OnAddDaysClickedDelegate string strValue Event public event OnAddDaysClickedDelegate.. string strValue Event public event OnAddDaysClickedDelegate myBtnAddDaysClickedEvent Provision for getting the presenter..
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