Chart Control for .NET Framework enables has the following functionalities
related to interactivity:
Selection uses hit-testing to determine which chart element a user clicks on.For example, if you click on a pie slice, then selection can be used to explode that pie slice or drill down to a more detailed chart. For example, you could click on a column in the column chart on the left to drill down to a pie chart related to that column.
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Standard tooltips can be specified using the Tooltip property of various chart elements. Series objects also have a LegendToolTip property, used for their corresponding legend entry tooltips.
Note that special keywords can be used to insert various chart values. For example, "#VALX" is used to display a data point's X value in the tooltip.
For custom drawing of tooltips, use the GetToolTipText event.
Cursors are horizontal and vertical lines that indicate where your click.
Uing zooming, you can zoom in and out of a chart by dragging the cursor on the chart. The part of the axis that is then displayed is referred to as the data view. You can then scroll through the data using the scrollbar.