Discussion :

[ChrisDeStras]

Bonjour vous tous...

J’espère être au bon endroit pour poser ce type de question :

Voilà je cherche à énumérer les DependencyProperty de n’import quel DependencyObject via une methode ex :

Public List< DependencyProperty> GetDependencyPropertys(DependencyObject element)
{
// ??
}

ou
Public List< DependencyProperty> GetDependencyPropertys(Type element)
{
// ??
}

Une idée ??

[binoo]

Salut,

Voici un post qui en parle :
http://social.msdn.microsoft.com/For...-3e3ba118c89c/

Il en arrive à la fonction suivante (j'ai pas testé) :

Code c# :

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    public IList<DependencyProperty> GetAttachedProperties(DependencyObject obj) {
      List<DependencyProperty> attached = new List<DependencyProperty>();
 
      foreach (System.ComponentModel.PropertyDescriptor pd in System.ComponentModel.TypeDescriptor.GetProperties(obj,
          new Attribute[] { new System.ComponentModel.PropertyFilterAttribute(System.ComponentModel.PropertyFilterOptions.All) })) {
        System.ComponentModel.DependencyPropertyDescriptor dpd =
            System.ComponentModel.DependencyPropertyDescriptor.FromProperty(pd);
 
        if (dpd != null && dpd.IsAttached) {
          attached.Add(dpd.DependencyProperty);
        }
      }
 
      return attached;
    }

[Thomas Lebrun]

Sinon, avec la reflection, tu devrais y arriver mais cette solution semble plus optimisée

[ChrisDeStras]

public abstract class BigThanks<T> where T :

[ChrisDeStras]

L'obectif du départ étant de pouvoir lister les DependencyProperty pour un DependencyObject donné.
De ce fait, nous ne souhaitons pas de propriété jointe (dpd.IsAttached =false)...

if (pd.ComponentType == ComponentType)
{

if (dpd != null && !dpd.IsAttached)
{

DependencyPropertysResult.Add(dpd.DependencyProperty);

}

}


Voilà mon petit code pour RoutedEvent et DependencyProperty:
Les methodes avec "All" retourn également les DependencyProperty ou RoutedEvent des classes parentes. Sinon uniquement les elemenents de la classe elle même.

Code :

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      public class DependencyObjectDescriptor
        {
            public static List<DependencyProperty> GetDependencyProperty(DependencyObject DependencyObject)
            {
                //using System.ComponentModel;
                //using System.Window;
                //using System.Collections.Generic;
                if (DependencyObject == null)
                    return null;
                List<DependencyProperty> DependencyPropertysResult = new List<DependencyProperty>();
                Type ComponentType = DependencyObject.GetType();
                PropertyDescriptorCollection PropertyDescriptors = TypeDescriptor.GetProperties(DependencyObject);
 
                foreach (PropertyDescriptor pd in PropertyDescriptors)
                {
 
                    DependencyPropertyDescriptor dpd = DependencyPropertyDescriptor.FromProperty(pd);
                    if (pd.ComponentType == ComponentType)
                    {
                        if (dpd != null && !dpd.IsAttached)
                        {
                            DependencyPropertysResult.Add(dpd.DependencyProperty);
                        }
 
                    }
                }
 
                return DependencyPropertysResult;
            }
            public static List<DependencyProperty> GetDependencyProperty(Type DependencyObjectType)
            {
                //using System.ComponentModel;
                //using System.Window;
                //using System.Collections.Generic;
                if (DependencyObjectType == null)
                    return null;
                List<DependencyProperty> DependencyPropertysResult = new List<DependencyProperty>();
                Type ComponentType = DependencyObjectType;
                PropertyDescriptorCollection PropertyDescriptors = TypeDescriptor.GetProperties(DependencyObjectType);
 
                foreach (PropertyDescriptor pd in PropertyDescriptors)
                {
 
                    DependencyPropertyDescriptor dpd = DependencyPropertyDescriptor.FromProperty(pd);
                    if (pd.ComponentType == ComponentType)
                    {
                        if (dpd != null && !dpd.IsAttached)
                        {
                            DependencyPropertysResult.Add(dpd.DependencyProperty);
                        }
 
                    }
                }
 
                return DependencyPropertysResult;
            }
            public static List<DependencyProperty> GetAllDependencyProperty(DependencyObject DependencyObject)
            {
                //using System.ComponentModel;
                //using System.Window;
                //using System.Collections.Generic;
                if (DependencyObject == null)
                    return null;
                List<DependencyProperty> DependencyPropertysResult = new List<DependencyProperty>();
                PropertyDescriptorCollection PropertyDescriptors = TypeDescriptor.GetProperties(DependencyObject);
                foreach (PropertyDescriptor pd in PropertyDescriptors)
                {
 
                    DependencyPropertyDescriptor dpd = DependencyPropertyDescriptor.FromProperty(pd);
 
                    if (dpd != null && !dpd.IsAttached)
                    {
                        DependencyPropertysResult.Add(dpd.DependencyProperty);
                    }
 
                }
 
                return DependencyPropertysResult;
            }
            public static List<DependencyProperty> GetAllDependencyProperty(Type DependencyObjectType)
            {
                //using System.ComponentModel;
                //using System.Window;
                //using System.Collections.Generic;
                if (DependencyObjectType == null)
                    return null;
                List<DependencyProperty> DependencyPropertysResult = new List<DependencyProperty>();
                PropertyDescriptorCollection PropertyDescriptors = TypeDescriptor.GetProperties(DependencyObjectType);
                foreach (PropertyDescriptor pd in PropertyDescriptors)
                {
 
                    DependencyPropertyDescriptor dpd = DependencyPropertyDescriptor.FromProperty(pd);
 
                    if (dpd != null && !dpd.IsAttached)
                    {
                        DependencyPropertysResult.Add(dpd.DependencyProperty);
                    }
 
                }
 
                return DependencyPropertysResult;
            }
 
            public static List<RoutedEvent> GetRoutedEvent(DependencyObject DependencyObject)
            {
                //using System.Window;
                //using System.Collections.Generic;
                if (DependencyObject == null)
                    return null;
                List<RoutedEvent> RoutedEventsResult = new List<RoutedEvent>();
                try
                {
                    RoutedEventsResult = EventManager.GetRoutedEventsForOwner(DependencyObject.GetType()).ToList();
                }
                catch { }//ArgumentNullException 
 
 
                return RoutedEventsResult;
            }
            public static List<RoutedEvent> GetRoutedEvent(Type DependencyObjectType)
            {
                //using System.Window;
                //using System.Collections.Generic;
                if (DependencyObjectType == null)
                    return null;
                List<RoutedEvent> RoutedEventsResult = new List<RoutedEvent>();
                try
                {
                    RoutedEventsResult = EventManager.GetRoutedEventsForOwner(DependencyObjectType).ToList();
                }
                catch { }//ArgumentNullException 
 
 
                return RoutedEventsResult;
            }
            public static List<RoutedEvent> GetAllRoutedEvent(DependencyObject DependencyObject)
            {
                //using System.Window;
                //using System.Collections.Generic;
                if (DependencyObject == null)
                    return null;
                List<Type> AllTypeparent = new List<Type>();
                Type tmptype = DependencyObject.GetType();
                AllTypeparent.Add(tmptype);
                while (tmptype.BaseType != null)
                {
                    AllTypeparent.Add(tmptype.BaseType);
                    tmptype = tmptype.BaseType;
                }
                List<RoutedEvent> RoutedEventsResult = new List<RoutedEvent>();
 
                foreach (var TypeItem in AllTypeparent)
                {
                    try
                    {
                        RoutedEventsResult.AddRange(EventManager.GetRoutedEventsForOwner(TypeItem).ToList());
                    }
                    catch { }//ArgumentNullException 
                }
 
                return RoutedEventsResult;
            }
            public static List<RoutedEvent> GetAllRoutedEvent(Type DependencyObjectType)
            {
                //using System.Window;
                //using System.Collections.Generic;
                if (DependencyObjectType == null)
                    return null;
                List<Type> AllTypeparent = new List<Type>();
                Type tmptype = DependencyObjectType;
                AllTypeparent.Add(DependencyObjectType);
                while (tmptype.BaseType != null)
                {
                    AllTypeparent.Add(tmptype.BaseType);
                    tmptype = tmptype.BaseType;
                }
                List<RoutedEvent> RoutedEventsResult = new List<RoutedEvent>();
 
                foreach (var TypeItem in AllTypeparent)
                {
                    try
                    {
                        RoutedEventsResult.AddRange(EventManager.GetRoutedEventsForOwner(TypeItem).ToList());
                    }
                    catch { }//ArgumentNullException 
                }
 
                return RoutedEventsResult;
            }
        }