public static bool TryGetValue <T>(this DependencyParameterCollection collection, string key, out T value)
{
Guard.ArgumentNotNull(key, "key");
if (collection != null && collection.ContainsKey(key))
{
value = (T)collection[key];
return(true);
}
else
{
value = default(T);
return(false);
}
}
public static T GetValueOrDefault <T>(this DependencyParameterCollection collection, string key, T defaultValue)
{
Guard.ArgumentNotNull(key, "key");
return((collection != null && collection.ContainsKey(key)) ? (T)collection[key] : defaultValue);
}