The HeatMap Control is used to show tabular data values as gradient colors instead of numbers. Low and high values are represented in different colors with different gradients.
Heat map control provides support to configure a data source in two ways and map rows and columns for visualization purposes.
Color mapping is used to configure values as colors instead of numerical values. For example, if a heat map represents data from 0 to 100,
ColorMapping is used to specify a color for the lowest value and highest value. For any value between those, a medium color will be automatically chosen.
Legend is a control used to summarize the range of colors in heat map. This gives a visual guideline for mapping between value and color.
The virtual scrolling support allows you to load data that you require (load data based on page size) without buffering the entire, huge database.