void ICollection <KeyValuePair <TKey, TValue> > .CopyTo(KeyValuePair <TKey, TValue>[] array, int arrayIndex)
{
_dict1.CopyTo(array, arrayIndex);
}
/// <summary>
/// Copies the elements of the dictionary to an array, starting at the specified array index.
/// </summary>
/// <param name="array">The one-dimensional array that is the destination of the elements copied from the dictionary. The array must have zero-based indexing.</param>
/// <param name="arrayIndex">The zero-based index in array at which copying begins.</param>
public void CopyTo(KeyValuePair <TKey, TValue>[] array, int arrayIndex)
{
dictionary.CopyTo(array, arrayIndex);
}