/// <summary>
/// Extract the value from the resource dictionnary using the given value and behavior
/// </summary>
/// <param name="value">value used to find the resource</param>
/// <param name="behavior">behavior of the finder</param>
/// <returns></returns>
private object ExtractResource(object value, ResourceSelectorBehavior behavior)
{
if (Resources == null)
return null;
switch (behavior)
{
// Simplest way : value as key
case ResourceSelectorBehavior.ValueAsKey:
if (value == null)
{
if (Resources.Contains(string.Empty))
return Resources[string.Empty];
return null;
}
var asIProvideKey = value as IProvideResourceKey;
if (asIProvideKey != null)
{
if (Resources.Contains(asIProvideKey.ResourceKey))
return Resources[asIProvideKey.ResourceKey];
return null;
}
var asString = value as string;
if (asString == null)
asString = System.Convert.ToString(value, CultureInfo.InvariantCulture);
if (asString != null)
{
if (Resources.Contains(asString))
return Resources[asString];
return null;
}
return null;
// More tricky to accept inheritance
case ResourceSelectorBehavior.ValueTypeAsKey:
Type type = value.GetType();
// This particular Linq query is fabulous. Yes, I'm proud of it
return GetAncestorsAndSelf(type)
.Select(t => ExtractResourceFromType(t))
.Where(res => res != null)
.FirstOrDefault();
}
return null;
}
protected virtual void OnBehaviorChanged(ResourceSelectorBehavior oldBehavior, ResourceSelectorBehavior newBehavior)
{
}
