Exemplos de ObservableDictionary.ActiveAll em C# (CSharp)

Exemplo n.º 1

        public void SourceManipulation()
        {
            var numbers = new ObservableDictionary <int, int>(Enumerable.Range(1, 10).ToDictionary(i => i, i => i * 3));

            using var query = numbers.ActiveAll((key, value) => value % 3 == 0);
            Assert.IsNull(query.OperationFault);
            Assert.IsTrue(query.Value);
            numbers[1] = 2;
            Assert.IsFalse(query.Value);
            numbers.Remove(1);
            Assert.IsTrue(query.Value);
            --numbers[2];
            Assert.IsFalse(query.Value);
            numbers.Clear();
            Assert.IsTrue(query.Value);
            numbers.Add(11, 7);
            Assert.IsFalse(query.Value);
        }