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);
}
}
}
public EventBinder(DXEventExtension owner, Type eventHandlerType, BindingBase binding)
{
this.errorHandler = owner.ErrorHandler;
this.calculator = owner.Calculator;
var target = (DependencyObject)owner.TargetProvider.TargetObject;
this.targetObject = new WeakReference(target);
this.eventHandlerType = eventHandlerType;
dataProperty = DependencyProperty.RegisterAttached(
owner.TargetPropertyName + Guid.NewGuid().ToString(), typeof(object), typeof(EventBinder), null);
BindingOperations.SetBinding(target, dataProperty, binding);
}
public EventConverter(DXEventExtension owner, bool isEmpty) : base(owner)
{
this.isEmpty = isEmpty;
}