private void RemoveFromGroup(string item, ObservableCollection <StringGroup> groups)
{
char groupKey = item[0];
StringGroup stringGroup = groups.FirstOrDefault(l => l.Count > 0 && l[0][0] == groupKey);
if (stringGroup == null)
{
return;
}
stringGroup.Remove(item);
if (stringGroup.Count == 0)
{
groups.Remove(stringGroup);
}
}
private void AddToGroup(string item, ObservableCollection <StringGroup> groups)
{
char groupKey = item[0];
StringGroup stringGroup = groups.FirstOrDefault(l => l.Count > 0 && l[0][0] == groupKey);
if (stringGroup != null)
{
stringGroup.Add(item);
}
else
{
_choosenGroups.Add(new StringGroup(groupKey.ToString())
{
item
});
}
}
