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New Construct

Posted By:      Posted Date: September 03, 2010    Points: 0   Category :ASP.Net
Why are we using new() constraint in the following construct.  I am working on the nopcommerce project.  In general when do we use the new() construct.    public sealed class StaticObjectContextManager<T> : ObjectContextManager<T> where T : ObjectContext, new() { private static T _objectContext; private static object _lockObject = new object(); /// <summary> /// Returns a shared NorthwindObjectContext instance. /// </summary> public override T ObjectContext { get { lock (_lockObject) { if (_objectContext == null) { string connectionString = ObjectContextHelper.GetEntityConnectionString(); _objectContext = Activator.CreateInstance(typeof(T), new object[] { connectionString }) as T; } } return _objectContext; } } }

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