public void CommandBindSetsInitialEnabledState_True()
{
var vm = new CommandBindViewModel();
var view = new CommandBindView {
ViewModel = vm
};
var canExecute1 = new BehaviorSubject <bool>(true);
vm.Command1 = ReactiveCommand.Create <int>(_ => { }, canExecute1);
view.BindCommand(vm, x => x.Command1, x => x.Command1);
Assert.True(view.Command1.IsEnabled);
}
public void CommandBindNestedCommandWireup()
{
var vm = new CommandBindViewModel
{
NestedViewModel = new FakeNestedViewModel()
};
var view = new CommandBindView {
ViewModel = vm
};
view.BindCommand(vm, m => m.NestedViewModel.NestedCommand, x => x.Command1);
Assert.Equal(vm.NestedViewModel.NestedCommand, view.Command1.Command);
}
public void CommandBindSetsDisablesCommandWhenCanExecuteChanged()
{
var vm = new CommandBindViewModel();
var view = new CommandBindView {
ViewModel = vm
};
var canExecute1 = new BehaviorSubject <bool>(true);
vm.Command1 = ReactiveCommand.Create <int>(_ => { }, canExecute1);
view.BindCommand(vm, x => x.Command1, x => x.Command1);
Assert.True(view.Command1.IsEnabled);
canExecute1.OnNext(false);
Assert.False(view.Command1.IsEnabled);
}
public void CommandBindWithParameterObservable()
{
var vm = new CommandBindViewModel();
var view = new CommandBindView {
ViewModel = vm
};
var received = 0;
var cmd = ReactiveCommand.Create <int>(i => { received = i; });
vm.Command1 = cmd;
var value = Observable.Return(42);
var disp = view.BindCommand(vm, x => x.Command1, x => x.Command1, value, nameof(CustomClickButton.CustomClick));
vm.Value = 42;
view.Command1.RaiseCustomClick();
Assert.Equal(42, received);
}
public void CommandBindByNameWireup()
{
var vm = new CommandBindViewModel();
var view = new CommandBindView {
ViewModel = vm
};
Assert.Null(view.Command1.Command);
var disp = view.BindCommand(vm, x => x.Command1, x => x.Command1);
Assert.Equal(vm.Command1, view.Command1.Command);
var newCmd = ReactiveCommand.Create <int>(_ => { });
vm.Command1 = newCmd;
Assert.Equal(newCmd, view.Command1.Command);
disp.Dispose();
Assert.Null(view.Command1.Command);
}
public void CommandBindWithDelaySetVMParameterNoINPCExpression()
{
var vm = new CommandBindViewModel();
var view = new CommandBindView();
var received = 0;
var cmd = ReactiveCommand.Create <int>(i => { received = i; });
vm.Command1 = cmd;
view.BindCommand(vm, x => x.Command1, x => x.Command1, x => x.Value, nameof(CustomClickButton.CustomClick));
view.ViewModel = vm;
vm.Value = 42;
view.Command1.RaiseCustomClick();
Assert.Equal(0, received);
vm.Value = 13;
view.Command1.RaiseCustomClick();
Assert.Equal(0, received);
}
public void CommandBindRaisesCanExecuteChangedOnBind()
{
var vm = new CommandBindViewModel();
var view = new CommandBindView {
ViewModel = vm
};
var canExecute1 = new BehaviorSubject <bool>(true);
vm.Command1 = ReactiveCommand.Create <int>(_ => { }, canExecute1);
view.BindCommand(vm, x => x.Command1, x => x.Command1);
Assert.True(view.Command1.IsEnabled);
// Now change to a disabled cmd
var canExecute2 = new BehaviorSubject <bool>(false);
vm.Command1 = ReactiveCommand.Create <int>(_ => { }, canExecute2);
Assert.False(view.Command1.IsEnabled);
}