/// <summary>
/// Constructor that accepts the full list of possible items.
/// </summary>
/// <param name="sourceList">The sorted source list of objects.</param>
/// <param name="formatHandler">A delegate that returns a formatted text string for the input object.</param>
/// <param name="refinementStrategy">An object that specifies how the shortlist is refined in response to user input.</param>
public DefaultSuggestionProvider(IList <TItem> sourceList, Converter <TItem, string> formatHandler, IRefinementStrategy refinementStrategy)
: base(refinementStrategy)
{
_shortlistProvider = delegate(string q) { return(string.IsNullOrEmpty(q) ? null : sourceList); };
_formatHandler = formatHandler;
this.AutoSort = false; // assume the source list is already sorted
}
/// <summary>
/// Constructor that accepts a delegate for providing a shortlist on demand.
/// </summary>
/// <param name="shortlistProvider">A delegate that obtains the shortlist for a specified query, or null to indicate that it should be called again.</param>
/// <param name="formatHandler">A delegate that returns a formatted text string for the input object.</param>
/// <param name="refinementStrategy">An object that specifies how the shortlist is refined in response to user input.</param>
public DefaultSuggestionProvider(Converter <string, IList <TItem> > shortlistProvider, Converter <TItem, string> formatHandler, IRefinementStrategy refinementStrategy)
: base(refinementStrategy)
{
_shortlistProvider = shortlistProvider;
_formatHandler = formatHandler;
}
/// <summary>
/// Constructor.
/// </summary>
protected SuggestionProviderBase(IRefinementStrategy refinementStrategy)
{
_state = new CleanState(this);
_refinementStrategy = refinementStrategy;
this.AutoSort = true; // default
}
