//COMMENT 26.03.2020:
// ERROR DESCRIPTION:
// see Ticket #1711, problem about icons not appearing:
// In the project that was sent to us on the 26th of March 2020:
// BasePage.xaml -> ItemsControl named "icSubNavigation" -> ItemTemplate Property -> DataTemplate with the key: dtSubNavigationIcon:
// Properly generated in C# but when translated into js, the first letter of the methods that are called is lowercased.
// I could not find the conditions nor the reasons for such a case to appear so I settled with the following workaround:
// WORKAROUND:
// Create an additional private method with the same signature except with the first character of its name lowercased, that calls the original one.
// NOTE:
// This workaround was used only for the methods that were in that specific case, so we might need to use it for other methods if other cases appear.
// Workaround currently used on:
// - INTERNAL_GetVisualStateGroups
// - RegisterName
//END OF COMMENT
// Note: this should be protected and the Control class should be abstract.
/// <summary>
/// Represents the base class for UI elements that use a <see cref="ControlTemplate"/>
/// to define their appearance.
/// </summary>
public Control()
{
// Initialize the _templateCache to the default value for TemplateProperty.
// If the default value is non-null then wire it to the current instance.
PropertyMetadata metadata = TemplateProperty.GetMetadata(this.GetType());
ControlTemplate defaultValue = (ControlTemplate)metadata.DefaultValue;
if (defaultValue != null)
{
OnTemplateChanged(this, new DependencyPropertyChangedEventArgs(null, defaultValue, TemplateProperty));
}
}
void Initialize()
{
// Initialize the _templateCache to the default value for TemplateProperty.
// If the default value is non-null then wire it to the current instance.
PropertyMetadata metadata = TemplateProperty.GetMetadata(DependencyObjectType);
DataTemplate defaultValue = (DataTemplate)metadata.DefaultValue;
if (defaultValue != null)
{
OnTemplateChanged(this, new DependencyPropertyChangedEventArgs(TemplateProperty, metadata, null, defaultValue));
}
DataContext = null; // this presents a uniform view: CP always has local DC
}