public void BasicWithIAPSType()
{
ImplementsIAPS a = new ImplementsIAPS();
object value;
Assert.IsFalse(AttachablePropertyServices.TryGetProperty(a, propertyOne, out value), "We expect the store doesn't have propertyOne for 'a' yet");
Assert.IsFalse(AttachablePropertyServices.TryGetProperty(a, propertyTwo, out value), "We expect the store doesn't have propertyTwo for 'a' yet");
IAttachedPropertyStore aAsIAPS = a as IAttachedPropertyStore;
Assert.IsNotNull(aAsIAPS);
Assert.IsFalse(aAsIAPS.TryGetProperty(propertyOne, out value), "We expect the type does not have propertyOne yet");
Assert.IsFalse(aAsIAPS.TryGetProperty(propertyTwo, out value), "We expect the type does not have propertyTwo yet");
AttachablePropertyServices.SetProperty(a, propertyOne, "Foo Bar");
Assert.IsTrue(AttachablePropertyServices.GetAttachedPropertyCount(a) == 1);
var props = new KeyValuePair <AttachableMemberIdentifier, object> [1];
AttachablePropertyServices.CopyPropertiesTo(a, props, 0);
Assert.IsTrue((string)props[0].Value == "Foo Bar");
Assert.IsTrue(AttachablePropertyServices.TryGetProperty(a, propertyOne, out value) && (string)value == "Foo Bar", "We should now find the property");
Assert.IsTrue(aAsIAPS.TryGetProperty(propertyOne, out value) && (string)value == "Foo Bar", "And it's storage should be local on the instance");
string valueAsString;
Assert.IsTrue(AttachablePropertyServices.TryGetProperty(a, propertyOne, out valueAsString) && valueAsString == "Foo Bar");
Assert.IsTrue(AttachablePropertyServices.RemoveProperty(a, propertyOne), "We should be able to remove the property");
Assert.IsFalse(AttachablePropertyServices.TryGetProperty(a, propertyOne, out value), "We should not have the property anymore");
Assert.IsFalse(aAsIAPS.TryGetProperty(propertyOne, out value), "Even the local copy should not have the property anymore");
Assert.IsTrue(AttachablePropertyServices.GetAttachedPropertyCount(a) == 0);
}
public static bool TryGetProperty <T>(object instance, AttachableMemberIdentifier name, out T value)
{
if (instance == null)
{
value = default(T);
return(false);
}
IAttachedPropertyStore ap = instance as IAttachedPropertyStore;
if (ap != null)
{
object obj;
bool result = ap.TryGetProperty(name, out obj);
if (result)
{
if (obj is T)
{
value = (T)obj;
return(true);
}
}
value = default(T);
return(false);
}
return(attachedProperties.TryGetProperty(instance, name, out value));
}
public static int GetSound(IAttachedPropertyStore element)
{
object val;
if (element.TryGetProperty(SoundProperty, out val))
{
return((int)val);
}
return(0);
}
public static decimal GetVersion(IAttachedPropertyStore element)
{
object val;
if (element.TryGetProperty(VersionProperty, out val))
{
return((decimal)val);
}
return(0);
}
public static bool TryGetProperty <T>(object instance, AttachableMemberIdentifier name, out T value)
{
object obj2;
if (instance == null)
{
value = default(T);
return(false);
}
IAttachedPropertyStore store = instance as IAttachedPropertyStore;
if (store == null)
{
return(attachedProperties.TryGetProperty <T>(instance, name, out value));
}
if (store.TryGetProperty(name, out obj2) && (obj2 is T))
{
value = (T)obj2;
return(true);
}
value = default(T);
return(false);
}
