System.Windows.Forms.TableRow.TableRowControlsCollection.this C# (CSharp) Method

            public Control this[int index]
            {
                get
                {
                    return items[index];
                }
                set
                {
                    if (items[index] != null && items[index].Disposing == false)
                        items[index].Dispose();
                    items[index] = value;
                    owner.owner.owner.Controls.Add(value);
                    owner.owner.owner.UpdateRow(owner);
                }
            }