private void UpdateSuggestions()
{
var newPlaceHolderValue = Text;
var cleanedNewPlaceHolderValue = Regex.Replace((newPlaceHolderValue ?? string.Empty).ToLowerInvariant(), @"\s+", string.Empty);
if (!string.IsNullOrEmpty(cleanedNewPlaceHolderValue) && Suggestions != null)
{
var filteredSuggestions = Suggestions.Cast <object>()
.Where(x => Regex.Replace(x.ToString().ToLowerInvariant(), @"\s+", string.Empty).Contains(cleanedNewPlaceHolderValue))
.OrderByDescending(x => Regex.Replace(x.ToString()
.ToLowerInvariant(), @"\s+", string.Empty)
.StartsWith(cleanedNewPlaceHolderValue)).ToList();
_availableSuggestions.Clear();
if (filteredSuggestions.Count > 0)
{
foreach (var suggestion in filteredSuggestions)
{
_availableSuggestions.Add(suggestion);
}
if (_availableSuggestions.Count == 1 && _availableSuggestions.First() as string == newPlaceHolderValue)
{
ShowHideListbox(false);
}
else
{
ShowHideListbox(true);
}
}
else
{
ShowHideListbox(false);
}
}
else
{
if (_availableSuggestions.Count > 0)
{
_availableSuggestions.Clear();
ShowHideListbox(false);
}
}
}