Reference Child Object

[Jamie]

I have a report with a group section and then a table on in the details, linked by a defined field.  I want to use values from the table in expressions in the Group Header.  For example in the table I have a count for the number of rows.  I want to then display this value in the group header.  I want to then also use this value to determine if a field appears in the header or not.  Is this possible?  Any other suggestions on how to achieve this?  Thanks

[Stef]

Hi Jamie,

Data displayed by nested data is not accessible on upper levels - Data Scope.


Instead you can have data on the upper level, and then bind the nested Table item to the container's data object via expression - Use DataObject as a datasource for nested data items (Table, List, Crosstab, Graph).
You can also use a data model that exposes properties with custom getters and collection properties which you can use as data source for nested Data items and calculations in the report - How to Databind to Collection Properties.


I hope this helps.

Regards,
Stef
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