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Synchronization of ArrayList in C#
Use the ArrayList.Synchronized Method in C# for synchronization of ArrayList in C#.
Let us see an example to lock the collection using SyncRoot property in C# −
ArrayList arr = new ArrayList(); lock(arr.SyncRoot) { foreach (object ele in arr) { } }
The following is the complete example to check the synchronization status of ArrayList −
Example
using System; using System.Collections; public class Demo { public static void Main() { ArrayList arr1 = new ArrayList(); arr1.Add("One"); arr1.Add("Two"); arr1.Add("Three"); arr1.Add("Four"); arr1.Add("Five"); arr1.Add("Six"); arr1.Add("Seven"); arr1.Add("Eight"); // set synchronized wrapper around the ArrayList ArrayList arr2 = ArrayList.Synchronized(arr1); // sychronization status of first ArrayList Console.WriteLine("arr1 = {0}", arr1.IsSynchronized ? " synchronized" : "not synchronized"); // sychronization status of second ArrayList Console.WriteLine("arr2 = {0}", arr2.IsSynchronized ? "synchronized" : "not synchronized"); } }
Output
arr1 = not synchronized arr2 = synchronized
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