//used to filter the places list
private void PreformFiltering()
{
if (_filter == null)
{
_filter = "";
}
var lowerCaseFilter = Filter.ToLower().Trim();
var result =
AllPlaces.Where(d => d.Name.ToLower()
.Contains(lowerCaseFilter)).ToList();
var toRemove = Places.Except(result).ToList();
foreach (var x in toRemove)
{
Places.Remove(x);
}
var resultCount = result.Count;
for (int i = 0; i < resultCount; i++)
{
var resultItem = result[i];
if (i + 1 > Places.Count || !Places[i].Equals(resultItem))
{
Places.Insert(i, resultItem);
}
}
}
