public void Refresh(string searchLine)
{
try
{
if (string.IsNullOrEmpty(searchLine))
{
if (_backList.IsEmpty || _backList.Count != MainList.Count)
{
_backList.Clear();
AddRange(MainList);
}
}
else
{
_backList.Clear();
var str = searchLine.ToUpper();
List <T> firstList = MainList.AsParallel().Where(_ => _.UpperString.Contains(str)).ToList();
Dictionary <int, List <T> > dict = new Dictionary <int, List <T> >();
foreach (var item in firstList)
{
var idx = item.UpperString.IndexOf(searchLine, 0, StringComparison.CurrentCultureIgnoreCase);
if (!dict.ContainsKey(idx))
{
dict.Add(idx, new List <T>()
{
item
});
}
else
{
dict[idx].Add(item);
}
}
for (var i = 0; i < dict.Count; i++)
{
if (dict.ContainsKey(i))
{
AddRange(dict[i]);
}
}
}
}
catch
{
// Logging.Log.Write(ex);
}
oldSearchLine = searchLine;
}