Description
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A report function that calculates the sum of one field (column) from the data source. |
This function produces a global total. The total sum of the group is known when the group processing starts and the report is not performing a prepare-run. The sum is calculated in the prepare run and recalled in the printing run.
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- to calculate a sum for the entire report
- to calculate a sum within a particular group
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The function understands two parameters:
- _field parameter is required and denotes the name of an ItemBand-field which gets summed up.
- _group parameter denotes the name of a group. When this group is started, the counter gets reset to null.
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