Changes

:[http://forums.asp.net/t/1040044.aspx scope Identity - problem solving]

:[http://www.obout.com/grid/grid_data_sources_data_set.aspx very good data]

*C, C++ Tutorials

:[http://www.parashift.com/c++-faq-lite/index.html copy constructors-parashift]

:[http://augustcouncil.com/~tgibson/tutorial/arr.html good explanation, working with arrays]

:[http://richardbowles.tripod.com/cpp/linklist/linklist.htm LINKED LIST]