protected override void OnAttached(CompositeDisposable disposables)
{
if (AssociatedObject is null)
{
return;
}
var hasErrors = AssociatedObject.GetObservable(DataValidationErrors.HasErrorsProperty);
var text = AssociatedObject.GetObservable(TextBox.TextProperty);
hasErrors.Select(_ => Unit.Default)
.Merge(text.Select(_ => Unit.Default))
.Throttle(TimeSpan.FromMilliseconds(100))
.ObserveOn(RxApp.MainThreadScheduler)
.Subscribe(_ =>
{
if (AssociatedObject is { } &&
!DataValidationErrors.GetHasErrors(AssociatedObject) &&
!string.IsNullOrEmpty(AssociatedObject.Text) &&
KeyboardNavigationHandler.GetNext(AssociatedObject, NavigationDirection.Next) is
{ } nextFocus)
{
nextFocus.Focus();
}
})
public void SelectedItem_Validation()
{
RunTest((control, textbox) =>
{
var exception = new InvalidCastException("failed validation");
var itemObservable = new BehaviorSubject <BindingNotification>(new BindingNotification(exception, BindingErrorType.DataValidationError));
control.Bind(AutoCompleteBox.SelectedItemProperty, itemObservable);
Dispatcher.UIThread.RunJobs();
Assert.Equal(DataValidationErrors.GetHasErrors(control), true);
Assert.Equal(DataValidationErrors.GetErrors(control).SequenceEqual(new[] { exception }), true);
});
}
public void Value_Validation()
{
RunTest((control, textbox) =>
{
var exception = new InvalidCastException("failed validation");
var valueObservable = new BehaviorSubject <BindingNotification>(new BindingNotification(exception, BindingErrorType.DataValidationError));
control.Bind(NumericUpDown.ValueProperty, valueObservable);
Dispatcher.UIThread.RunJobs();
Assert.True(DataValidationErrors.GetHasErrors(control));
Assert.True(DataValidationErrors.GetErrors(control).SequenceEqual(new[] { exception }));
});
}
public void Setter_Exceptions_Should_Set_DataValidationErrors_HasErrors()
{
using (UnitTestApplication.Start(Services))
{
var target = new TextBox
{
DataContext = new ExceptionTest(),
[!TextBox.TextProperty] = new Binding(nameof(ExceptionTest.LessThan10), BindingMode.TwoWay),
Template = CreateTemplate(),
};
target.ApplyTemplate();
Assert.False(DataValidationErrors.GetHasErrors(target));
target.Text = "20";
Assert.True(DataValidationErrors.GetHasErrors(target));
target.Text = "1";
Assert.False(DataValidationErrors.GetHasErrors(target));
}
}
protected override void OnKeyDown(KeyEventArgs e)
{
var keymap = AvaloniaLocator.Current.GetService <PlatformHotkeyConfiguration>();
if (keymap.Paste.Any(g => g.Matches(e)))
{
CustomPaste();
e.Handled = true;
}
else
{
base.OnKeyDown(e);
}
if (Text == "" && DataValidationErrors.GetHasErrors(this))
{
Text = "0";
SelectAll();
}
}
public void SelectedItem_Validation()
{
using (UnitTestApplication.Start(TestServices.MockThreadingInterface))
{
var target = new ComboBox
{
Template = GetTemplate(),
VirtualizationMode = ItemVirtualizationMode.None
};
target.ApplyTemplate();
target.Presenter.ApplyTemplate();
var exception = new System.InvalidCastException("failed validation");
var textObservable = new BehaviorSubject <BindingNotification>(new BindingNotification(exception, BindingErrorType.DataValidationError));
target.Bind(ComboBox.SelectedItemProperty, textObservable);
Assert.True(DataValidationErrors.GetHasErrors(target));
Assert.True(DataValidationErrors.GetErrors(target).SequenceEqual(new[] { exception }));
}
}
public void SelectedItem_Validation()
{
var target = new ListBox
{
Template = ListBoxTemplate(),
Items = new[] { "Foo" },
ItemTemplate = new FuncDataTemplate <string>((_, __) => new Canvas()),
SelectionMode = SelectionMode.AlwaysSelected,
VirtualizationMode = ItemVirtualizationMode.None
};
Prepare(target);
var exception = new System.InvalidCastException("failed validation");
var textObservable = new BehaviorSubject <BindingNotification>(new BindingNotification(exception, BindingErrorType.DataValidationError));
target.Bind(ComboBox.SelectedItemProperty, textObservable);
Assert.True(DataValidationErrors.GetHasErrors(target));
Assert.True(DataValidationErrors.GetErrors(target).SequenceEqual(new[] { exception }));
}
