ARCed.Database.DatabaseWindow.ChangeCapacity C# (CSharp) Метод

        protected void ChangeCapacity()
        {
            if (this.RpgType == null || this.DataObjectList == null)
                return;
            var current = this.Data.Count - 1;
            var max = current;
            using (var dialog = new ChangeMaxDialog(current, 1, 9999))
            {
                if (dialog.ShowDialog() == DialogResult.OK)
                    max = dialog.MaxValue;
            }
            if (current == max)
                return;
            var listBoxGeneration = GC.GetGeneration(this.DataObjectList);
            var listGeneration = GC.GetGeneration(this.Data);
            var index = this.DataObjectList.SelectedIndex;
            if (current > max)
                this.Data.RemoveRange(max + 1, current - max);
            else if (current < max)
            {
                for (int i = current; i < max; i++)
                {
                    dynamic obj = Activator.CreateInstance(this.RpgType);
                    obj.id = i + 1;
                    this.Data.Add(obj);
                }
            }
            this.DataObjectList.PopulateList(this.Data);
            this.DataObjectList.SelectedIndex = index.Clamp(0, this.DataObjectList.Items.Count - 1);
            GC.Collect(listGeneration, GCCollectionMode.Forced);
            GC.Collect(listBoxGeneration, GCCollectionMode.Forced);
        }