g_sidhu

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• Feb 13th, 2008

 

Canvases serve as physical containers of items. Blocks, on the other hand, serve as logical containers of items. There are two types of blocks: basetable blocks and non-base-table blocks. Sometimes, you may see base-table blocks referred to as data blocks and non-base-table referred to as control blocks. All blocks, whether they are base-table or non-base-table blocks, are regarded as logical because they do not have physical properties like X Position, Y Position, Height, Width, and so on. They serve a purely functional purpose in that they allow you to group items without regard to physical location. Therefore, you can easily perform programmatic operations on a block no matter where the items in the block are physically positioned.