/// <summary>
/// Determines whether the specified <paramref name="state" /> exists in the enumeration of <paramref name="source" />.
/// </summary>
/// <param name="source">The enumeration of states.</param>
/// <param name="state">The state.</param>
/// <returns>
/// Returns a <see cref="bool" /> representing <c>true</c> if the state exists; otherwise, <c>false</c>.
/// </returns>
/// <exception cref="ArgumentNullException">state</exception>
public static bool Contains(this IMMEnumPxState source, IMMPxState state)
{
if (source == null)
{
return(false);
}
if (state == null)
{
throw new ArgumentNullException("state");
}
return(source.AsEnumerable().Any(testState => testState.Name == state.Name && testState.NodeType == state.NodeType));
}
/// <summary>
/// Creates an <see cref="IEnumerable{T}" /> from an <see cref="IMMEnumPxState" />
/// </summary>
/// <param name="source">An <see cref="IMMEnumPxState" /> to create an <see cref="IEnumerable{T}" /> from.</param>
/// <returns>An <see cref="IEnumerable{T}" /> that contains the fields from the input source.</returns>
public static IEnumerable <IMMPxState> AsEnumerable(this IMMEnumPxState source)
{
if (source != null)
{
source.Reset();
IMMPxState state = source.Next();
while (state != null)
{
yield return(state);
state = source.Next();
}
}
}
