How to determine when all task is completed

Question

here is sample code for starting multiple task

Task.Factory.StartNew(() =>
        {
            //foreach (KeyValuePair entry in dicLis         


        

Answer 1

You can use the WaitAll(). Example :

Func DummyMethod = () =>{
    // When ready, send back complete!
    return true;
};

// Create list of tasks
System.Threading.Tasks.Task[] tasks = new System.Threading.Tasks.Task[2];

// First task
var firstTask = System.Threading.Tasks.Task.Factory.StartNew(() => DummyMethod(), TaskCreationOptions.LongRunning);
tasks[0] = firstTask;

// Second task
var secondTask = System.Threading.Tasks.Task.Factory.StartNew(() => DummyMethod(), TaskCreationOptions.LongRunning);
tasks[1] = secondTask;

// Launch all
System.Threading.Tasks.Task.WaitAll(tasks);