/// <summary>
/// Handles change events from own data properties.
/// Raises modification state change if a property value has changed.
/// </summary>
/// <param name="sender">Property that send the event.</param>
/// <param name="e">The property change event.</param>
protected virtual void OnDataPropertyChange(object sender, PropertyChangeEventArgs e)
{
if (e.Change.IncludesValue())
{
OnPropertyChanged(new PropertyChangedEventArgs(nameof(Modified)));
}
}
/// <summary>
/// A callback that validates the property when it stops being edited.
/// </summary>
/// <param name="sender">The sender.</param>
/// <param name="args">The callback arguments.</param>
protected void ValidateOnStopEditing(object sender, PropertyChangeEventArgs args)
{
if (this == sender && args.Change.IncludesEditing() && !Editing)
{
Validate();
}
}
private void Recompute(object sender, PropertyChangeEventArgs e)
{
if (!e.IsAsync && sender is BaseProperty bp && properties.TryGetValue(bp, out PropertyChange chg) &&
e.Change.IncludesChanges(chg))
{
Update(e.Row);
}
}
private async Task RecomputeAsync(object sender, PropertyChangeEventArgs e, CancellationToken token)
{
if (e.IsAsync && sender is BaseProperty bp && properties.TryGetValue(bp, out PropertyChange chg) &&
e.Change.IncludesChanges(chg))
{
await UpdateAsync(e.Row, token);
}
}
/// <summary>
/// Listens to the property change events and updates the framework element accordingly.
/// </summary>
/// <param name="sender">Event sender.</param>
/// <param name="e">Property change event arguments.</param>
protected virtual void OnPropertyChange(object sender, PropertyChangeEventArgs e)
{
if (property == sender && !PreventElementUpdate)
{
bool b = PreventModelUpdate;
PreventModelUpdate = true;
UpdateElement(e.Change);
PreventModelUpdate = b;
}
}
/// <summary>
/// Fires a property change event recursively through all properties and child objects.
/// </summary>
/// <param name="args">Property change event arguments.</param>
protected void FireDataPropertyChange(PropertyChangeEventArgs args)
{
foreach (DataProperty p in properties.Values)
{
p.FirePropertyChange(args);
}
foreach (DataObject obj in childObjects.Values)
{
obj.FireDataPropertyChange(args);
}
}
public void OnCustomerChanged(object sender, PropertyChangeEventArgs e)
{
if (!e.Change.IncludesValue() || DataProperty.Equals(e.OldValue, e.NewValue) ||
customer.PersonIdProperty.Value == null && customer.StoreIdProperty.Value == null) return;
LoadCache(Enumerations.BusinessEntityAddress.EnumName, delegate (LookupTable tbl)
{
UpdateProperty(tbl, customer.BillingAddressObject.AddressIdProperty);
UpdateProperty(tbl, customer.ShippingAddressObject.AddressIdProperty);
});
}
private void OnCreditCardChanged(object sender, PropertyChangeEventArgs e)
{
if (e.Change.IncludesValue() && !DataProperty.Equals(e.OldValue, e.NewValue))
{
Header cc = CreditCardIdProperty.Value;
CardNumberProperty.SetValue(cc == null ? null :
cc[Enumerations.PersonCreditCard.Attributes.CardNumber]);
ExpirationProperty.SetValue(cc == null ? null :
cc[Enumerations.PersonCreditCard.Attributes.ExpMonth] + "/" +
cc[Enumerations.PersonCreditCard.Attributes.ExpYear]);
}
}
private void OnAddressChanged(object sender, PropertyChangeEventArgs e)
{
if (!e.Change.IncludesValue() || DataProperty.Equals(e.OldValue, e.NewValue)) return;
Header h = AddressIdProperty.Value;
AddressLine1Property.SetValue(h == null ? null : h[Enumerations.BusinessEntityAddress.Attributes.AddressLine1]);
AddressLine2Property.SetValue(h == null ? null : h[Enumerations.BusinessEntityAddress.Attributes.AddressLine2]);
CityStateProperty.SetValue(h == null ? null : h[Enumerations.BusinessEntityAddress.Attributes.City]
+ ", " + h[Enumerations.BusinessEntityAddress.Attributes.State]);
PostalCodeProperty.SetValue(h == null ? null : h[Enumerations.BusinessEntityAddress.Attributes.PostalCode]);
CountryProperty.SetValue(h == null ? null : h[Enumerations.BusinessEntityAddress.Attributes.Country]);
}
/// <inheritdoc/>
/// Overridden to update elements in a thread-safe manner.
protected override void OnPropertyChange(object sender, PropertyChangeEventArgs e)
{
if (property == sender && !PreventElementUpdate)
{
element.Dispatcher.InvokeAsync(async() =>
{
bool b = PreventModelUpdate;
PreventModelUpdate = true;
await UpdateElementAsync(e.Change);
PreventModelUpdate = b;
});
}
}
public void OnCustomerPersonChanged(object sender, PropertyChangeEventArgs e)
{
if (!e.Change.IncludesValue() || DataProperty.Equals(e.OldValue, e.NewValue)
|| salesOrder.CustomerObject.PersonIdProperty.Value == null) return;
LoadCache(Enumerations.PersonCreditCard.EnumName, delegate (LookupTable tbl)
{
EnumProperty p = salesOrder.PaymentObject.CreditCardObject.CreditCardIdProperty;
p.SetValue(null);
p.LocalLookupTable = tbl;
p.FirePropertyChange(new PropertyChangeEventArgs(PropertyChange.Items, null, null));
});
}
/// <summary>
/// Fires a property change event recursively through all properties and child objects.
/// </summary>
/// <param name="args">Property change event arguments.</param>
protected void FireDataPropertyChange(PropertyChangeEventArgs args)
{
foreach (DataProperty p in properties.Values)
{
p.FirePropertyChange(args);
}
foreach (ActionProperty a in actions.Values)
{
a.FirePropertyChange(args);
}
foreach (DataObject obj in childObjects.Values)
{
obj.FireDataPropertyChange(args);
}
if (args.Change.IncludesEditable())
{
OnPropertyChanged(new PropertyChangedEventArgs(nameof(Editable)));
}
}
/// <summary>
/// Fires a property change event recursively through all properties and child objects.
/// </summary>
/// <param name="args">Property change event arguments.</param>
public void FirePropertyChange(PropertyChangeEventArgs args)
{
foreach (DataProperty p in properties.Values) p.FirePropertyChange(args);
foreach (IDataObject obj in childObjects.Values) obj.FirePropertyChange(args);
}
/// <summary>
/// Listens to the property change events and updates the framework element accordingly.
/// </summary>
/// <param name="sender">Event sender.</param>
/// <param name="e">Property change event arguments.</param>
protected virtual void OnPropertyChange(object sender, PropertyChangeEventArgs e)
{
if (property == sender && !PreventElementUpdate)
{
bool b = PreventModelUpdate;
PreventModelUpdate = true;
UpdateElement(e.Change);
PreventModelUpdate = b;
}
}
/// <summary>
/// A callback that validates the property when it stops being edited.
/// </summary>
/// <param name="sender">The sender.</param>
/// <param name="args">The callback arguments.</param>
protected void ValidateOnStopEditing(object sender, PropertyChangeEventArgs args)
{
if (this == sender && args.Change.IncludesEditing() && !Editing) Validate();
}
/// <summary>
/// A method to fire a property change event.
/// If certain property information is calculated and depends on the factors
/// that are outside of the property's control (e.g. editability),
/// then this method may need to be called from outside to fire a property change event
/// if certain conditions that affect the calculated value have changed.
/// </summary>
/// <param name="args">Property change event arguments.</param>
public void FirePropertyChange(PropertyChangeEventArgs args)
{
Change?.Invoke(this, args);
}
/// <summary>
/// A method to fire a property change event.
/// If certain property information is calculated and depends on the factors
/// that are outside of the property's control (e.g. editability),
/// then this method may need to be called from outside to fire a property change event
/// if certain conditions that affect the calculated value have changed.
/// </summary>
/// <param name="args">Property change event arguments.</param>
public void FirePropertyChange(PropertyChangeEventArgs args)
{
Change?.Invoke(this, args);
}
