public EventBinder(DXEventExtension owner, Type eventHandlerType, BindingBase binding)
{
lock (locker) {
this.errorHandler = owner.ErrorHandler;
this.calculator = owner.Calculator;
var target = (DependencyObject)owner.TargetProvider.TargetObject;
this.targetObject = new WeakReference(target);
this.eventHandlerType = eventHandlerType;
var dataPropertyInfo = Tuple.Create(target.GetType(), owner.Handler);
if (!propertiesCache.TryGetValue(dataPropertyInfo, out dataProperty))
{
dataProperty = DependencyProperty.Register(
"Tag" + dataPropertyIndex++.ToString(), typeof(object), dataPropertyInfo.Item1);
propertiesCache[dataPropertyInfo] = dataProperty;
}
try {
BindingOperations.SetBinding(target, dataProperty, binding);
} catch (Exception e) {
string message = "DXEvent cannot set binding on data property. " + Environment.NewLine
+ "Expr: " + owner.Handler + Environment.NewLine
+ "TargetProperty: " + owner.TargetPropertyName + Environment.NewLine
+ "TargetPropertyType: " + owner.TargetPropertyType.ToString() + Environment.NewLine
+ "TargetObjectType: " + target.GetType() + Environment.NewLine
+ "DataProperty: " + dataProperty.Name;
throw new DXEventException(owner, message, e);
}
}
}
protected override void Init()
{
TreeInfo = new EventTreeInfo(Handler, ErrorHandler);
if (ActualResolvingMode == DXBindingResolvingMode.LegacyStaticTyping)
{
Calculator = new EventCalculator(TreeInfo);
}
else
{
Calculator = new EventCalculatorDynamic(TreeInfo);
}
Calculator.Init(TypeResolver);
}
