Answer to Question #180518 in C# for Miley

Question

Create an Observable Collection. Listen to its Collection Changed Event and display message on UI for each operation.

1.       Addition: “Element ‘x’ is added in collection”

2.       Removal: “Element ‘x’ is removed from collection”

Use enum NotifyCollectionChangedAction to differentiate the action

 

 

 

 Exercise 1: Extension methods on int

1.       IsOdd

2.       IsEven

3.       IsPrime

4.       IsDivisibleBy (taking one parameter excluding the first this parameter)

Answer 1

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