/// <summary>
/// Add a key / value pair to the dictionary.
/// </summary>
/// <param name="item">
/// The <see cref="KeyValuePair{TKey, TValue}"/> to add.
/// </param>
public void Add(KeyValuePair <T3, T4> item)
{
if (item.Key == null)
{
throw new ArgumentException("Key cannot be null.", nameof(item));
}
if (item.Value == null)
{
throw new ArgumentException("Value cannot be null.", nameof(item));
}
if (ForwardLookup.ContainsKey(item.Key))
{
throw new ArgumentException("The dictionary's forward-lookup section already contains the specified key.", nameof(item));
}
if (ReverseLookup.ContainsKey(item.Value))
{
throw new ArgumentException("The dictionary's reverse-lookup section already contains the specified key.", nameof(item));
}
ForwardLookup.Add(item.Key, item.Value);
ReverseLookup.Add(item.Value, item.Key);
}
/// <summary>
/// Add a value to the dictionary with the specified key.
/// </summary>
/// <param name="key">
/// The key.
/// </param>
/// <param name="value">
/// The value.
/// </param>
public void Add(T3 key, T4 value)
{
if (key == null)
{
throw new ArgumentNullException(nameof(key));
}
if (value == null)
{
throw new ArgumentNullException(nameof(value));
}
if (ForwardLookup.ContainsKey(key))
{
throw new ArgumentException("The dictionary's forward-lookup section already contains the specified key.", nameof(key));
}
if (ReverseLookup.ContainsKey(value))
{
throw new ArgumentException("The dictionary's reverse-lookup section already contains the specified key.", nameof(value));
}
ForwardLookup.Add(key, value);
ReverseLookup.Add(value, key);
}
/// <summary> /// Determine whether the dictionary contains the specified key. /// </summary> /// <param name="key"> /// The key. /// </param> /// <returns> /// <c>true</c>, if the dictionary contains the key; otherwise, <c>false</c>. /// </returns> public bool ContainsKey(T3 key) => ForwardLookup.ContainsKey(key);