WebJul 23, 2012 · C#. //using callback approach R = d.BeginInvoke ( "TestString", new AsyncCallback (TaskCompleted), null ); public void TaskCompleted (IAsyncResult R) { // Write here code to handle the completion of // your asynchronous method } The above method will execute on completion of LongTimeTask method. We can also wait untill the … WebJun 20, 2024 · Here’s the delegate to call the above method. Func sum = new Func (SumOfEvens); The sum variable above is our delegate to which we must supply the list of items to get the sum of evens in the list of values. var listItems = Enumerable.Range(1, 10); Console.WriteLine(sum(listItems));

Events in C# with Examples - Dot Net Tutorials

WebApr 14, 2024 · string[] fruits = input.Split(delimiterChars, 3); foreach (string fruit in fruits) {. Console.WriteLine(fruit); } } } We use the Split method to split a string into an array of substrings based on an array of delimiter characters. We limit the number of substrings returned to 3 and output each element to the console. deep cleaning service seattle

c# - Invoke(Delegate) - Stack Overflow

WebJun 20, 2024 · The reference can be changed at runtime. Delegates are especially used for implementing events and the call-back methods. All delegates are implicitly derived from … WebDec 23, 2014 · this.Invoke (delegate) make sure that you are calling the delegate the argument to this.Invoke () on main thread/created thread. I can say a Thumb rule don't access your form controls except from main thread. May be the following lines make sense for using Invoke () WebThe MyMethod method defines an asynchronous delegate that returns a Task using the Func> delegate type. The delegate takes no input parameters. To await the delegate and get the string result, the MyMethod method calls the delegate using the operator, and then awaits the resulting Task object. More C# Questions federal university of lafia