Returns true if the index th point in the Series is "null" or "empty". A point is considered "null" when the color of that point is "Transparent" or its value is Double.NaN.
public Boolean IsNull(Int32 index)

Parameters

index
The point index.

Return Value

True if the point color is Color.Transparent.

Remarks


Use IsNull to determine if the Point value at the Valueindex is null. See also, the AddNull.

See Also

Series Class | Series Members | Steema.TeeChart.Styles Namespace