private IEnumerable<string> FilterCompletion(string inTarget)
{
if (string.IsNullOrEmpty(inTarget)) {
return mDic
.Select(item => item.Split(' ').First())
.GroupBy(item => item)
.Select(item => item.Key)
;
}
else {
return mDic
.Where(item => item.StartsWith(inTarget))
;
}
}