Single selection for every UITableViewSection iOS Xamarin - ios

Question

I have a UITableView with 2-3 sections. I want to implement a functionality where single row from every section can be selected.
Something like so :-
I have tried enabling multiple selection on the UITableView. But it allows me to select multiple rows from all the sections. I want to select only one row at a time from every section.
public override void RowSelected(UITableView tableView, NSIndexPath indexPath)
{
var cell = tableView.CellAt(indexPath);
if (cell.Accessory == UITableViewCellAccessory.None)
{
cell.Accessory = UITableViewCellAccessory.Checkmark;
}
else
{
cell.Accessory = UITableViewCellAccessory.None;
}
selectedSection = indexPath.Section;
}
public override void RowDeselected(UITableView tableView, NSIndexPath indexPath)
{
var cell = tableView.CellAt(indexPath);
cell.Accessory = UITableViewCellAccessory.None;
}

Answer 1

You can use a list to store flags for every section which you selected last time.
List<NSIndexPath> selectList = new List<NSIndexPath>();
for(int i = 0; i < tableviewDatasource.Count; i++)
{
//initial index 0 for every section
selectList.Add(NSIndexPath.FromRowSection(0, i));
}
public override void RowSelected(UITableView tableView, NSIndexPath indexPath)
{
//anti-highlight last cell
NSIndexPath lastindex = selectList[indexPath.Section];
var lastcell = tableView.CellAt(lastindex);
lastcell.Accessory = UITableViewCellAccessory.None;
//highlight selected cell
var cell = tableView.CellAt(indexPath);
cell.Accessory = UITableViewCellAccessory.Checkmark;
//update the selected index
selectList.RemoveAt(indexPath.Section);
selectList.Insert(indexPath.Section, indexPath);
}