public void PerformFiltering()
{
if (_filter == null)
{
_filter = "";
}
//If _filter has a value (ie. user entered something in Filter textbox)
//Lower-case and trim string
var lowerCaseFilter = Filter.ToLowerInvariant().Trim();
//Use LINQ query to get all personmodel names that match filter text, as a list
var result =
AllBugs.Where(n => n.name.ToLowerInvariant()
.Contains(lowerCaseFilter))
.ToList();
//Get list of values in current filtered list that we want to remove
//(ie. don't meet new filter criteria)
var toRemove = Bugs.Except(result).ToList();
//Loop to remove items that fail filter
foreach (var note in toRemove)
{
Bugs.Remove(note);
}
var resultCount = result.Count;
// Add back in correct order.
for (int i = 0; i < resultCount; i++)
{
var resultItem = result[i];
if (i + 1 > Bugs.Count || !Bugs[i].Equals(resultItem))
{
Bugs.Insert(i, resultItem);
}
}
}
