public bool Contains(TK key)
{
if (_range.IsWithin(key))
{
var cursor = _underlying.FindUnique(key, _underlying.RootCursor);
if (cursor.IsNotEnd)
{
return(Equals(key, cursor.Key));
}
}
return(false);
}
public bool Contains(TK key)
{
return(_range.IsWithin(key) && _underlying.ContainsKey(key));
}
/// <summary>
/// Determines whether the <see cref="T:System.Collections.Generic.ICollection`1" /> contains a specific value.
/// </summary>
/// <param name="item">The object to locate in the <see cref="T:System.Collections.Generic.ICollection`1" />.</param>
/// <returns>
/// true if <paramref name="item" /> is found in the <see cref="T:System.Collections.Generic.ICollection`1" />; otherwise, false.
/// </returns>
public bool Contains(KeyValuePair <TK, TV> item)
{
return(_range.IsWithin(item.Key) && _parent.Contains(item));
}
