Q&A - Question

I'm using .NET Developer Kernel.

I've got some TGIS_LayerSqlPgisLibpq and I would like to select some shapes.
I follow the MultiSelect example, but I'm not able to select the shapes. If I set the IsSelected property to true, it became false immediately.

Example:

           TGIS_Shape shp = lv.FindFirst();
            while (shp != null)
            {
                object idobj = shp.GetField("id");
                Console.WriteLine(idobj.ToString() + " " + shp.IsSelected);
                if (someCondition)
                {
                    Console.WriteLine(sel);
                    shp.IsSelected = true;
                    shp.Invalidate();
                }
                shp = lv.FindNext();
            }

            Console.WriteLine("**** check *****");

            shp = lv.FindFirst();
            while (shp != null)
            {
                object idobj = shp.GetField("id");
                Console.WriteLine(idobj.ToString() + " " + shp.IsSelected);
                shp = lv.FindNext();
            }

With this code, in the checking part I get always IsSelected == false even if I set it to true in the first part.
In the MultiSelect example you call MakeEditable() method on the shape. In my case, if I call MakeEditable() on a shape, it disappears (maybe because it is a LayerSqlPgisLibpq layer?)