getCategories
getCategories() method
Gets the primary categories (or both primary and secondary categories if #getUseSecondaryCategories/ #setUseSecondaryCategories(boolean) property is false). Read-only IChartCategoryCollection.
If #getUseSecondaryCategories/ #setUseSecondaryCategories(boolean) property is false then ( #getSecondaryCategories) property return null and data in this #getCategories property is used both for primary and secondary series. If #getUseSecondaryCategories/ #setUseSecondaryCategories(boolean) property is true then data in ( #getSecondaryCategories) property is used for secondary series and data in this #getCategories property is used for primary series.