By creating a template of the HeaderTemplate type, you can define the custom content displayed for all field headers in the ASPxPivotGrid control. The appearance settings used to paint field headers can be specified by the PivotGridStyles.HeaderStyle or PivotGridField.HeaderStyle property.
The content of a particular field header can be defined using the field's PivotGridField.HeaderTemplate property, which takes precedence over the HeaderTemplate property.
Note
Once a template defined via the HeaderTemplate property is created within a control, it is instantiated within a container object of the PivotGridHeaderTemplateContainer type. This container object exposes a set of specific properties to which the template's child controls can be bound.