private static void IsValidChangedCallback(DependencyObject obj, DependencyPropertyChangedEventArgs e)
{
if (!GetIsEnabled(obj))
{
throw new InvalidOperationException("The IsValid attached property can only be used when the IsEnabled "
+ "attached property is set to true.");
}
Binding binding = BindingOperations.GetBinding(obj, IsValidProperty);
if (binding != null)
{
CheckBindingMode(binding.Mode);
return;
}
MultiBinding multiBinding = BindingOperations.GetMultiBinding(obj, IsValidProperty);
if (multiBinding != null)
{
CheckBindingMode(multiBinding.Mode);
return;
}
PriorityBinding priorityBinding = BindingOperations.GetPriorityBinding(obj, IsValidProperty);
if (priorityBinding != null)
{
throw new InvalidOperationException("PriorityBinding is not supported for the IsValid attached dependency property!");
}
}
/// <summary>
/// Метод, който визуализира цвета при неправилно въведени данни
/// </summary>
private void BeginInvalidInputAnimation()
{
ColorAnimation animation = new ColorAnimation(this.AnimationBrushColor, TimeSpan.FromSeconds(0.1))
{
AutoReverse = true,
FillBehavior = FillBehavior.Stop,
DecelerationRatio = 0.8
};
// Ако свойството за Background участва в Binding, няма да може да бъде анимирано, затова временно
// откачаме Binding-а и го възстановяваме след края на анимацията (в метода storyBoard_Completed())
if (BindingOperations.IsDataBound(this.AssociatedTextBox, Control.BackgroundProperty))
{
this.animatedPropertyBinding = BindingOperations.GetBinding(this.AssociatedTextBox, Control.BackgroundProperty);
this.animatedPropertyMultiBinding = BindingOperations.GetMultiBinding(this.AssociatedTextBox, Control.BackgroundProperty);
if (this.animatedPropertyBinding != null || this.animatedPropertyMultiBinding != null)
{
// задаваме текущата стойност локално
Brush currentValue = this.AssociatedObject.GetValue(Control.BackgroundProperty) as Brush;
this.AssociatedTextBox.Background = currentValue;
}
}
Storyboard.SetTargetProperty(animation, new PropertyPath("(Control.Background).(SolidColorBrush.Color)"));
Storyboard storyBoard = new Storyboard();
storyBoard.Children.Add(animation);
storyBoard.Completed += new EventHandler(StoryBoard_Completed);
storyBoard.Begin(this.AssociatedTextBox);
SystemSounds.Beep.Play();
}
private bool IsQualifiedForDeferrer(DeferredElement element)
{
var binding = BindingOperations.GetBinding(element.Element, element.DeferredProperty);
var multiBinding = BindingOperations.GetMultiBinding(element.Element, element.DeferredProperty);
return(null != binding && !DisallowedBindings.Contains(binding.Mode) ||
(null != multiBinding && !DisallowedBindings.Contains(multiBinding.Mode)));
}
private bool HasQualifiedBinding(TextBox element)
{
var binding = BindingOperations.GetBinding(element, TextBox.TextProperty);
var multiBinding = BindingOperations.GetMultiBinding(element, TextBox.TextProperty);
return (null != binding && !DisallowedBindings.Contains(binding.Mode) ||
(null != multiBinding && !DisallowedBindings.Contains(multiBinding.Mode)));
}
private async void btnSaveTxt2Bin_Click(object sender, RoutedEventArgs e)
{
// Выключим кнопку записи в файл чтобы сто раз не жмакали
// так как у нас включен биндинг, нужно его засейвить потом ресторить.
var btn = ((Button)sender);
BindingBase binding = null;
if (BindingOperations.IsDataBound(btn, IsEnabledProperty))
{
binding = BindingOperations.GetBinding(btn, IsEnabledProperty) ??
(BindingBase)BindingOperations.GetMultiBinding(btn, IsEnabledProperty);
}
btn.IsEnabled = false;
// Читаем ввод пользователя. Валидация ввода провдится еще в фазе ввода в форму.
var binPrefix = tbxBinPrefix.Text;
var filePath = tbxTxtPath.Text;
// Инициализируем прогресс бар
prgbTxt2Bin.IsIndeterminate = true;
// прогрессор, будет апдейтить прогрессбар и строку статуса
var progress = new Progress <ProgressReport>(report =>
{
var str = "";
if (report.Finished)
{
str = "Обработано: {0} Затрачено: {1}".Put(report.ProcessedCount, report.TimeUsed);
}
else
{
str = "Обработано: {0} Текущий: {1} Затрачено: {2}".Put(report.ProcessedCount, report.Date.Date.ToShortDateString(), report.TimeUsed);
}
lblBarProcessStatus.Content = str;
});
// заводим асинхронно конвертацию, если будут ошибки, они хэндлятся штатным образом.
try
{
await Common.TxtToBinTradesAsync(filePath, binPrefix, progress);
}
catch (Exception ex)
{
Trace.Fail(ex.ToString());
lblBarProcessStatus.Content = "Error: {0}".Put(ex.Message);
this.UpdateLayout();
}
// восстановим биндинг кнопки, сбросим прогрессбар
btn.SetBinding(IsEnabledProperty, binding);
prgbTxt2Bin.IsIndeterminate = false;
prgbTxt2Bin.Value = 0;
}
private async void btnSaveBin2Txt_Click(object sender, RoutedEventArgs e)
{
// Получим выбранный тикер, если ничего не выбрали то выходим.
var tickerInfo = cbxTickers.SelectedItem as BarsTickerInfo;
if (tickerInfo == null)
{
return;
}
var timeframe = cbxTimeframe.SelectedItem as Interval;
var decimals = int.Parse(tbxDecimals.Text);
// Выключим кнопку записи в файл чтобы сто раз не жмакали
// так как у нас включен биндинг, нужно его засейвить потом ресторить.
var btn = ((Button)sender);
BindingBase binding = null;
if (BindingOperations.IsDataBound(btn, IsEnabledProperty))
{
binding = BindingOperations.GetBinding(btn, IsEnabledProperty) ??
(BindingBase)BindingOperations.GetMultiBinding(btn, IsEnabledProperty);
}
btn.IsEnabled = false;
// Инициализируем прогресс бар с учетом выбранного диапазона
prgbBin2Txt.IsIndeterminate = true;
// прогрессор, будет апдейтить прогрессбар и строку статуса
var progress = new Progress <ProgressReport>(report =>
{
prgbBin2Txt.Value = (int)report.Percent;
lblTickProcessStatus.Content = "Обработано: {0} Затрачено: {1}".Put(report.ProcessedCount, report.TimeUsed);
});
// заводим асинхронно конвертацию, если будут ошибки, они хэндлятся штатным образом.
try
{
await Common.BinToTxtBarsAsync(tickerInfo, timeframe, decimals, progress);
}
catch (Exception ex)
{
Trace.Fail(ex.ToString());
lblTickProcessStatus.Content = "Error: {0}".Put(ex.Message);
this.UpdateLayout();
}
// вернем назад бинды и прогресс бар
btn.SetBinding(IsEnabledProperty, binding);
prgbBin2Txt.Value = 0;
prgbBin2Txt.IsIndeterminate = false;
this.UpdateLayout();
}
private void Cell_SourceUpdated(object sender, DataTransferEventArgs e)
{
_ = new TextBox();
TextBox TextSender = (TextBox)sender;
new MultiBinding();
MultiBinding MultiBindText = BindingOperations.GetMultiBinding(TextSender, TextBox.TextProperty);
new Binding();
Binding Bind0 = (Binding)MultiBindText.Bindings[0];
int rowText = Grid.GetRow(TextSender);
new RowPuzzle(rowText);
RowPuzzle SourceBindR = (RowPuzzle)Bind0.Source;
if (SourceBindR.ParentGrid.Win())
{
SourceBindR.ParentGrid.OnWinTrigger();
}
}
public FormeWrapper Convertir([NotNull] MeshElement3D mesh) => (FormeWrapper)BindingOperations.GetMultiBinding(mesh, ModelVisual3D.TransformProperty)?.Bindings?.OfType <Binding>()?.First()?.Source;
/// <summary>
/// Updates the binding on the property described by <paramref name="path"/> to use <paramref name="dataContext"/> as source.
/// </summary>
/// <param name="obj">The root object.</param>
/// <param name="dataContext">The object to use as source.</param>
/// <param name="path">A list of objects describing the path through the object tree to the property.</param>
private bool UpdateBindingSource(object obj, object dataContext, ICollection <PathInfo> path)
{
object nestedObj = obj;
bool hasNewlyDiscoveredObjects = false;
var segmentsToTraverse = path.Take(path.Count - 1)
.SkipWhile(p => p.Reference != null)
.ToArray();
if (segmentsToTraverse.Length > 0)
{
// update object with last known reference
var index = path.Count - segmentsToTraverse.Length - 1 - 1;
if (index >= 0)
{
nestedObj = path.ElementAt(index)
.Reference;
}
foreach (var pathSegment in segmentsToTraverse)
{
nestedObj = GetValueOf(nestedObj, pathSegment);
pathSegment.Reference = nestedObj;
hasNewlyDiscoveredObjects = true;
}
}
else
{
// update object with last known reference
nestedObj = path.ElementAt(path.Count - 2)
.Reference;
}
var type = nestedObj.GetType();
var visual = nestedObj as DependencyObject;
if (visual != null)
{
var secondLastSegment = path.ElementAt(path.Count - 2);
if (secondLastSegment.PublicDependencyProperties == null)
{
secondLastSegment.PublicDependencyProperties = type.GetPublicStaticFields().ToArray();
}
var lastSegmentName = path.Last().Name;
foreach (var fi in secondLastSegment.PublicDependencyProperties)
{
var dp = fi.GetValue(null) as DependencyProperty;
if (dp != null && dp.Name == lastSegmentName)
{
var binding = BindingOperations.GetBinding(visual, dp);
if (binding != null && binding.Source == null)
{
BindingOperations.ClearBinding(visual, dp);
var b = binding.Clone();
b.Source = dataContext;
BindingOperations.SetBinding(visual, dp, b);
break;
}
var multiBinding = BindingOperations.GetMultiBinding(visual, dp);
if (multiBinding != null)
{
var newMultiBinding = multiBinding.Clone();
for (int a = 0; a < multiBinding.Bindings.Count; a++)
{
var innerBinding = multiBinding.Bindings[a] as Binding;
if (innerBinding != null && innerBinding.Source == null)
{
var newInnerBinding = innerBinding.Clone();
newInnerBinding.Source = dataContext;
newMultiBinding.Bindings.Add(newInnerBinding);
}
else
{
newMultiBinding.Bindings.Add(multiBinding.Bindings[a]);
}
}
BindingOperations.ClearBinding(visual, dp);
BindingOperations.SetBinding(visual, dp, newMultiBinding);
}
}
}
}
return(hasNewlyDiscoveredObjects);
}
private bool TryGetInitialValue(DependencyObject depo, DependencyProperty dp, ref object value)
{
if (depo == null || dp == null)
{
return(false);
}
Binding b = BindingOperations.GetBinding(depo, dp);
if (b == null)
{
MultiBinding mb = BindingOperations.GetMultiBinding(depo, dp);
if (mb == null)
{
return(false);
}
b = mb.Bindings[0] as Binding;
}
if (b == null || b.Path == null || string.IsNullOrEmpty(b.Path.Path))
{
return(false);
}
BindingExpression be = BindingOperations.GetBindingExpression(depo, dp);
if (be == null)
{
MultiBindingExpression mbe = BindingOperations.GetMultiBindingExpression(depo, dp);
if (mbe == null)
{
return(false);
}
be = mbe.BindingExpressions[0] as BindingExpression;
}
if (be == null || be.DataItem == null)
{
return(false);
}
var dobj = be.DataItem as DataObj;
if (dobj != null)
{
string prop = b.Path.Path.Replace("Model.", "");
if (initialModel != null)
{
var pi = initialModel.GetType().GetProperty(prop);
if (pi != null)
{
value = pi.GetValue(initialModel, null);
return(true);
}
}
}
return(TryGetInitialValue(be.DataItem as DependencyObject, DispatcherHelper.GetDependencyProperty(be.DataItem.GetType(), b.Path.Path + "Property"), ref value));
}
private async void btnSaveBin2Txt_Click(object sender, RoutedEventArgs e)
{
// Получим выбранный тикер, если ничего не выбрали то выходим.
var tickerInfo = cbxTickers.SelectedItem as TradesTickerInfo;
if (tickerInfo == null)
{
return;
}
// если границы не заданы, то диапазона не будет, будем брать все.
DateRange dateRange;
if (dpFrom.SelectedDate == null || dpTo.SelectedDate == null)
{
dateRange = null;
}
else
{
var from = (DateTime)dpFrom.SelectedDate;
var to = (DateTime)dpTo.SelectedDate;
if (from > to)
{
MessageBox.Show("Дата От должна быть всегда не больше даты До.", "Ошибка!", MessageBoxButton.OK, MessageBoxImage.Error);
return;
}
dateRange = new DateRange(from, to);
}
// Выключим кнопку записи в файл чтобы сто раз не жмакали
// так как у нас включен биндинг, нужно его засейвить потом ресторить.
var btn = ((Button)sender);
BindingBase binding = null;
if (BindingOperations.IsDataBound(btn, IsEnabledProperty))
{
binding = BindingOperations.GetBinding(btn, IsEnabledProperty) ??
(BindingBase)BindingOperations.GetMultiBinding(btn, IsEnabledProperty);
}
btn.IsEnabled = false;
// Инициализируем прогресс бар с учетом выбранного диапазона
prgbBin2Txt.Minimum = 0;
prgbBin2Txt.Maximum = 100;
prgbBin2Txt.Value = 0;
// прогрессор, будет апдейтить прогрессбар и строку статуса
var progress = new Progress <ProgressReport>(report =>
{
prgbBin2Txt.Value = (int)report.Percent;
lblTickProcessStatus.Content = "Обработано: {0} Затрачено: {1}".Put(report.ProcessedCount, report.TimeUsed);
});
// заводим асинхронно конвертацию, если будут ошибки, они хэндлятся штатным образом.
try
{
await Common.BinToTxtTradesAsync(tickerInfo, dateRange, progress);
}
catch (Exception ex)
{
Trace.Fail(ex.ToString());
lblTickProcessStatus.Content = "Error: {0}".Put(ex.Message);
this.UpdateLayout();
}
// восстановим биндинг кнопки, сбросим прогрессбар
btn.SetBinding(IsEnabledProperty, binding);
prgbBin2Txt.Value = 0;
this.UpdateLayout();
}
public static bool CheckAllValidationErrors(DependencyObject dependencyObject, DependencyProperty dependencyProperty)
{
bool isValid = true;
if (BindingOperations.IsDataBound(dependencyObject, dependencyProperty))
{
Binding binding = BindingOperations.GetBinding(dependencyObject, dependencyProperty);
MultiBinding multiBinding = null;
if (binding == null)
{
multiBinding = BindingOperations.GetMultiBinding(dependencyObject, dependencyProperty);
if (multiBinding == null)
{
return(true);
}
}
if (binding != null && binding.ValidationRules.Count > 0
||
multiBinding != null && multiBinding.ValidationRules.Count > 0)
{
BindingExpression bindingExpression = BindingOperations.GetBindingExpression(dependencyObject, dependencyProperty);
MultiBindingExpression multiBindingExpression = null;
if (bindingExpression == null)
{
multiBindingExpression = BindingOperations.GetMultiBindingExpression(dependencyObject, dependencyProperty);
if (multiBindingExpression == null)
{
return(true);
}
}
BindingExpressionBase expression = bindingExpression ?? (BindingExpressionBase)multiBindingExpression;
switch (binding != null ? binding.Mode : multiBinding.Mode)
{
case BindingMode.OneTime:
case BindingMode.OneWay:
expression.UpdateTarget();
break;
default:
expression.UpdateSource();
break;
}
if (expression.HasError)
{
isValid = false;
}
}
// Another method:
foreach (ValidationRule rule in (binding != null ? binding.ValidationRules : multiBinding.ValidationRules))
{
ValidationResult result = rule.Validate(dependencyObject.GetValue(dependencyProperty), null);
if (!result.IsValid)
{
BindingExpression bindingExpression = BindingOperations.GetBindingExpression(dependencyObject, dependencyProperty);
MultiBindingExpression multiBindingExpression = null;
if (bindingExpression == null)
{
multiBindingExpression = BindingOperations.GetMultiBindingExpression(dependencyObject, dependencyProperty);
if (multiBindingExpression == null)
{
continue;
}
}
BindingExpressionBase expression = bindingExpression ?? (BindingExpressionBase)multiBindingExpression;
System.Windows.Controls.Validation.MarkInvalid(expression, new ValidationError(rule, expression, result.ErrorContent, null));
isValid = false;
}
}
}
return(isValid);
}
private BindingBase GetExistingBinding(DeferredElement element) => BindingOperations.GetBinding(element.Element, element.DeferredProperty) ?? (BindingBase)BindingOperations.GetMultiBinding(element.Element, element.DeferredProperty);
private void ChangeToDeferredBinding(TextBox element)
{
var originalBinding = BindingOperations.GetBinding(element, TextBox.TextProperty) ?? (BindingBase)BindingOperations.GetMultiBinding(element, TextBox.TextProperty);
SetOriginalBinding(element, originalBinding);
SetInputDeferrer(element, this);
var newBinding = CreateNewBinding(element);
var text = (string)GetDeferredValue(element) ?? element.Text;
if (text != element.Text && !ChangesAvailable)
{
text = element.Text;
}
//BindingOperations.ClearBinding(element, DeferredValueProperty);
BindingOperations.ClearBinding(element, TextBox.TextProperty);
element.SetValue(TextBox.TextProperty, text);
//TODO: check if can remove the clear.
BindingOperations.SetBinding(element, DeferredValueProperty, newBinding);
}
