public static void ShowAll()
{
FilterNotes.Clear();
foreach (NotesModel note in NoteModel)
{
FilterNotes.Add(note);
}
}
public static void PerformFiltering(string Filter)
{
if (Filter.Trim() == null || Filter.Equals(""))
{
FilterNotes.Clear();
foreach (NotesModel note in NoteModel)
{
FilterNotes.Add(note);
}
}
else
{
var lowerCaseFilter = Filter.ToLowerInvariant().Trim();
var result =
NoteModel.Where(d => d.Title.ToLowerInvariant()
.Contains(lowerCaseFilter))
.ToList();
var toRemove = FilterNotes.Except(result).ToList();
foreach (var x in toRemove)
{
FilterNotes.Remove(x);
}
var resultCount = result.Count;
for (int i = 0; i < resultCount; i++)
{
var resultItem = result[i];
if (i + 1 > FilterNotes.Count || !FilterNotes[i].Equals(resultItem))
{
FilterNotes.Insert(i, resultItem);
}
}
}
}
