Common Question 34

How do I empty/clear a property array, or reset the entire graph?

Reverting to Default State

To empty a chart of all properties and revert it back to its default state:

.NET developers use PeFunction.Reset

OCX developers use PEactions = REVERT_TO_DEFAULTS (20)

C/C++ developers use PEreset DLL call.

Emptying a property array

.NET developers use PeData.Y.Clear

See Chapter 2 for more info.

OCX developers clear property arrays by setting the index to -1 and equating property to zero. For example..

Pego1.RandomSubsetsToGraph(-1) = 0

Text type property arrays can be emptied like...

Pego1.PointLabels(-1) = "0"

Two dimensional arrays are emptied like...

Pego1.YData(0, -1) = 0

See Chapter 3 for more info.

C/C++ developers, use PEvset and pass zero as the last argument to empty property arrays.