PivotItem class

Represents a item in a PivotField report.

The PivotItem type exposes the following members:

Property	Description
is_hidden	Gets and Sets whether the pivot item is hidden.
position	Specifying the position index in all the PivotItems,not the PivotItems under the same parent node.
position_in_same_parent_node	Specifying the position index in the PivotItems under the same parent node.
is_hide_detail	Gets and sets whether the pivot item hides detail.
is_detail_hidden	Gets and sets whether the detail of this pivot item is hidden.
is_calculated_item	Indicates whether this pivot item is a calculated formula item.
is_formula	Indicates whether this pivot item is a calculated formula item.
is_missing	Indicates whether the item is removed from the data source.
value	Gets the value of the pivot item
name	Gets the name of the pivot item.
index	Gets the index of the pivot item in cache field.

Method	Description
`move(self, count, is_same_parent)`	Moves the item up or down
`get_formula(self)`	Gets the formula of this calculated item. Only works when this item is calculated item.
`get_string_value(self)`	Gets the string value of the pivot item If the value is null, it will return ""
`get_double_value(self)`	Gets the double value of the pivot item If the value is null or not number ,it will return 0
`get_date_time_value(self)`	Gets the date time value of the pivot item If the value is null ,it will return DateTime.MinValue