Question

I am using a ResourceDictionary, but I would like to be able to look up the value or the key with the other item. Each is always unique, so that is not a problem. Is there a type that has this double sided lookup feature?

Answer 1

Not built in, but this is pretty easy to write. I would probably implement IDictionary for this though… You would then dump the ResourceDictionary into your custom type.

public class DoubleLookup<TKey, TValue> {   private IDictionary<TKey, TValue> keys;   private IDictionary<TValue, TKey> values;    //stuff...    public void Add(TKey key, TValue value)   {     this.keys.Add(key, value);     this.values.Add(value, key);   }    public TKey GetKeyFromValue(TValue value)   {     return this.values[value];   }    public TValue GetValueFromKey(TKey key)   {     return this.keys[key];   }   }