C# (CSharp) Microsoft.Practices.Composite.Wpf.Tests.Commands TestCommand.FireCanExecuteChanged示例

示例#1

文件： CompositeCommandFixture.cs 项目： eslahi/prism

        public void ShouldReraiseCanExecuteChangedEvent()
        {
            TestableCompositeCommand multiCommand = new TestableCompositeCommand();
            TestCommand testCommandOne            = new TestCommand()
            {
                CanExecuteValue = true
            };

            Assert.IsFalse(multiCommand.CanExecuteChangedRaised);
            multiCommand.RegisterCommand(testCommandOne);
            testCommandOne.FireCanExecuteChanged();
            Assert.IsTrue(multiCommand.CanExecuteChangedRaised);
        }

示例#2

文件： CompositeCommandFixture.cs 项目： eslahi/prism

        public void UnregisterCommandDisconnectsCanExecuteChangedDelegate()
        {
            TestableCompositeCommand multiCommand = new TestableCompositeCommand();
            TestCommand testCommandOne            = new TestCommand()
            {
                CanExecuteValue = true
            };

            multiCommand.RegisterCommand(testCommandOne);
            multiCommand.UnregisterCommand(testCommandOne);
            multiCommand.CanExecuteChangedRaised = false;
            testCommandOne.FireCanExecuteChanged();
            Assert.IsFalse(multiCommand.CanExecuteChangedRaised);
        }

示例#3

文件： CompositeCommandFixture.cs 项目： eslahi/prism

        public void UnregisterCommandDisconnectsCanExecuteChangedDelegate()
        {
            TestableCompositeCommand multiCommand = new TestableCompositeCommand();
            TestCommand testCommandOne = new TestCommand() { CanExecuteValue = true };

            multiCommand.RegisterCommand(testCommandOne);
            multiCommand.UnregisterCommand(testCommandOne);
            multiCommand.CanExecuteChangedRaised = false;
            testCommandOne.FireCanExecuteChanged();
            Assert.IsFalse(multiCommand.CanExecuteChangedRaised);
        }

示例#4

文件： CompositeCommandFixture.cs 项目： eslahi/prism

        public void ShouldReraiseCanExecuteChangedEvent()
        {
            TestableCompositeCommand multiCommand = new TestableCompositeCommand();
            TestCommand testCommandOne = new TestCommand() { CanExecuteValue = true };

            Assert.IsFalse(multiCommand.CanExecuteChangedRaised);
            multiCommand.RegisterCommand(testCommandOne);
            testCommandOne.FireCanExecuteChanged();
            Assert.IsTrue(multiCommand.CanExecuteChangedRaised);
        }