oop - What is Delegate? - Stack Overflow Delegate types are derived from the Delegate class in the NET Framework Delegate types are sealed—they cannot be derived Because the instantiated delegate is an object, it can be passed as a parameter, or assigned to a property This allows a method to accept a delegate as a parameter, and call the delegate at some later time
c# - When why to use delegates? - Stack Overflow A delegate can be seen as a placeholder for a some method(s) By defining a delegate, you are saying to the user of your class, "Please feel free to assign any method that matches this signature to the delegate and it will be called each time my delegate is called" Typical use is of course events
c# - why can we declare delegates outside a class? Is it not against . . . Actually Delegates are a type ( class) It is just a syntactic sugar, if you may, when you declare a delegate type public delegate int PerformCalculation(int x, int y); A delegate is a type that safely encapsulates a method Delegate types are derived from the Delegate class in the NET Framework
. net - When would you use delegates in C#? - Stack Overflow This declares a delegate type public delegate void DataReaderUser( System Data IDataReader dataReader ); Any method matching this signature can be used to instantiate a delegate of this type In C# 2 0, this can be done implicitly, simply by using method's name, as well as by using anonymous methods This method uses the type as a parameter
Delegates in C# - Stack Overflow This is called encapsulating the method When you create a delegate you specify a method signature and return type You can encapsulate any matching method with that delegate You create a delegate with the delegate keyword, followed by a return type and the signatures of the methods that can be delegated to it, as in the following:
How does the + operator work for combining delegates? A delegate can call more than one method when invoked This is referred to as multicasting To add an extra method to the delegate's list of methods—the invocation list—simply requires adding two delegates using the addition or addition assignment operators ('+' or '+=') For example:
What is the difference between Func lt;string,string gt; and delegate? The following 2 items are delegate declarations These are easy to spot because they will always contain the delegate keyword public delegate TReturn Func<TArg, TReturn>(Targ value); public delegate string convertMethod(string value); This line of code is assigning a value to a local which is typed to a delegate Func<string, string> local
c# - Invoke (Delegate) - Stack Overflow Delegate are essentially inline Action's or Func<T> You can declare a delegate outside the scope of a method which you are running or using a lambda expression(=>); because you run the delegate within a method, you run it on the thread which is being run for the current window application which is the bit in bold Lambda example
What is the meaning of `delegate_to` in ansible task? - hosts: ServerB tasks: - name: Transfer file from ServerA to ServerB synchronize: src: path on server_a dest: path on server_b delegate_to: ServerA Looks like the effect of delegate_to in this case is that the task still runs in context of ServerB (remote host), but instead of local host the host specified by delegate_to is used (ServerA in