A data grid software component has data cells with a style that may be template-based or individual. A data cell may include a software component to show and interact with a bitmap, a graph, a chart, streaming graphics, or streaming bitmaps. The data grid may have footers, headers, and corner cells each capable of holding another software component to show and interact with several data forms. A header, a footer, and a corner cell can each have a style that is template-based or individual. Headers and footers may have multiple levels. Header parts and footer parts at different levels may have a style that is template-based or individual.